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PMC-509 User Manual

Version: V1.0A

04/17/2013

Ceiec Electric Technology

2


This manual may not be reproduced in whole or in part by any means without the express

written permission from Ceiec Electric Technology (CET).

The information contained in this Manual is believed to be accurate at the time of

publication; however, CET assumes no responsibility for any errors which may appear here

and reserves the right to make changes without notice. Please consult CET or your local

representative for latest product specifications.

Standards Compliance

DANGER

This symbol indicates the presence of danger that may result in severe injury or death and

permanent equipment damage if proper precautions are not taken during the installation,

operation or maintenance of the device.

CAUTION

This symbol indicates the potential of personal injury or equipment damage if proper

precautions are not taken during the installation, operation or maintenance of the device.

3


DANGER Failure to observe the following instructions may result in severe injury or

death and/or equipment damage.

Installation, operation and maintenance of the device should only be

performed by qualified, competent personnel that have the appropriate

training and experience with high voltage and current devices.

Ensure that power source is turned OFF before performing any work on the

device.

Before connecting the device to the power source, check the label on top of

the device to ensure that it is equipped with the appropriate power supply.

During normal operation of the meter, hazardous voltages are present on its

terminal strips and throughout the connected potential transformers (PT) and

current transformers (CT). PT and CT secondary circuits are capable of

generating lethal voltages and currents with their primary circuits energized.

Follow standard safety precautions while performing any installation or

service work (i.e. removing PT fuses, shorting CT secondaries, …etc).

Do not use the device for primary protection functions where failure of the

device can cause fire, injury or death. The device should only be used for

shadow protection if needed.

Under no circumstances should the device be connected to a power source if

it is damaged.

To prevent potential fire or shock hazard, do not expose the device to rain or

moisture.

Setup procedures must be performed only by qualified personnel familiar

with the instrument and its associated electrical equipment.

DO NOT open the device under any circumstances.

4


Table of Contents

Chapter 1 Introduction ..................................................................................................... 6

1.1 Overview ............................................................................................................ 6

1.2 Features .............................................................................................................. 6

1.3 Acronyms ............................................................................................................ 7

Chapter 2 Installation ....................................................................................................... 8

2.1 Appearance ......................................................................................................... 8

2.2 Unit Dimensions .................................................................................................. 8

2.3 Mounting ............................................................................................................ 9

2.4 Communications Wiring .................................................................................... 10

2.5 Digital Input Wiring ........................................................................................... 10

2.6 Power Supply Wiring ......................................................................................... 10

Chapter 3 Front Panel..................................................................................................... 11

3.1 Functions of buttons .......................................................................................... 11

3.2 Default Screen ................................................................................................... 12

3.3 Data Display ...................................................................................................... 12

3.4 PMC-509’s Menu Tree ........................................................................................ 15

3.5 Using the Main Menu ........................................................................................ 16

3.5.1 MEASUREMENTS ..................................................................................... 16

3.5.2 SETTINGS and SETUP ............................................................................... 16

3.5.3 MAINTENANCE ........................................................................................ 17

3.5.4 INFORMATION ......................................................................................... 17

Chapter 4 Applications ................................................................................................... 19

4.1 RTD Inputs ........................................................................................................ 19

4.2 Demand Measurements .................................................................................... 19

4.3 Setpoints ........................................................................................................... 19

4.3.1 Control Setpoints ..................................................................................... 19

4.3.2 Temperature Setpoint .............................................................................. 20

4.4 Logging ............................................................................................................. 21

4.4.1 Max Demand Log ..................................................................................... 21

4.4.2 Data Recorder (DR) Log ............................................................................ 21

Chapter 5 Modbus Register Map .................................................................................... 22

5.1 Basic Measurements.......................................................................................... 22

5.2 Demand ............................................................................................................ 24

5.2.1 Real-time Demand ................................................................................... 24

5.2.2 Maximum Demand .................................................................................. 25

5.3 Setup Parameters .............................................................................................. 25

5.4 Maintenance Registers ...................................................................................... 26

5.5 Data Recorder Setup Parameters ........................................................................ 27

5.5.1 Data Recorder Setup Parameters .............................................................. 27

5.5.2 Data Recorder Setup Data Structure ......................................................... 27

5.6 Time ................................................................................................................. 28

5.7 Meter Information ............................................................................................. 28

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5.8 Data Format ...................................................................................................... 29

5.8.1 Max Demand Data Structure .................................................................... 29

5.8.2 Control Setpoint Data Structure ............................................................... 29

5.8.3 Data Recorder Log Data Structure ............................................................ 30

Appendix A - Data Recorder Parameters ......................................................................... 31

Appendix B - Temperature Sensor ................................................................................... 32

Appendix C - Technical Specification ............................................................................... 33

Appendix D - Standards Compliance ............................................................................... 34

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Chapter 1 Introduction

This chapter provides an overview of the PMC-509 and summarizes many of its key features.

1.1 Overview

The PMC-509 is a Maximum Demand Indicator (MDI) featuring quality construction, DIN rail mount

and a large, easy to read LCD display. It comes with either 6 Current Inputs and 3 RTD Inputs or 9

Current Inputs. The PMC-509 also provides 4 self-excited Digital Inputs for status monitoring. With

the standard RS-485 port and Modbus RTU protocol support, the PMC-509 becomes a vital

component in any energy management systems.

The PMC-509 can be setup through its front panel or via CET's free PMC Setup software. The device

is also supported by our PecStar® iEMS Integrated Energy Management System.

1.2 Features

Ease of use

Large, backlit, easy to read LCD display Password-protected setup via front panel or free PMC Setup software Easy installation with DIN rail mounting, no tools required

Maximum Demand Indicator

Current and Temperature measurements Demands and Peak Demands with Timestamps for Current and Temperature measurements with

programmable Demand Interval and No. Demand Periods VLN, VLL per phase

Hardware Options for Current and RTD Temperature Inputs

6 Current Inputs + 3 RTD Inputs (Each RTD Input requires an external Pt100 temperature sensor) 9 Current Inputs

Digital Inputs

4 channels for external status monitoring Volts free dry contact, 24VDC internally wetted 1000Hz sampling

Data Recorders

8 Data Recorder Logs of 16 parameters each for real-time measurements, harmonics, interval energy, demand, temperature ….etc.

Recording interval from 1s to 40 days Configurable depths and recording offsets 8MB log memory

Setpoints

27 user programmable setpoints Configurable thresholds and time delays

Real-time clock

Battery-backed real-time clock @ 6ppm or 0.5s/day Time can be set via front panel or communications

Communications

Optically isolated RS485 port Baud rate from 1200 to 19,200bps Modbus RTU protocol

System Integration

Supported by our PecStar® iEMS and PMC Setup Easy integration into other Automation or SCADA systems via Modbus RTU protocol

7


1.3 Acronyms

The following acronyms are used throughout this document

MDI = Maximum Demand Indicator MFM = Multifunction Measurements SM = Sub-Meter VM = Virtual Meter DR = Data Recorder RTC = Real-time Clock

8


Chapter 2 Installation

2.1 Appearance

Figure 2-1 Appearance

2.2 Unit Dimensions

Front View Side View

Figure 2-2 Dimensions

Caution

Installation of the PMC-509 should only be performed by qualified, competent personnel

that have the appropriate training and experience with high voltage and current devices.

During the operation of the meter, hazardous voltages are present at the input terminals.

Failure to observe precautions can result in serious or even fatal injury and equipment

damage.

9


2.3 Mounting

The PMC-509 should be installed in a dry environment with no dust and kept away from heat,

radiation and electrical noise sources.

Installation steps:

Before installation, make sure that the 35mm DIN-Rail is already in place

Move the Installation clips at the back of the PMC-509, as shown in Figure 2-3, downward to the

“unlock” position

Align the top of the mounting channel at the back of the PMC-509 at an angle against the top of

the DIN rail as show in Figure 2-4 below

Rotate the bottom of the PMC-509 towards the back while applying a slight pressure to make

sure that the device is completely and securely fixed on to the DIN rail

Push the installation clip upward into the “lock” position to secure the PMC-509 on the DIN Rail

Figure 2-3 PMC-509's Installation Clips

Figure 2-4 Mounting the PMC-509

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2.4 Communications Wiring

The PMC-509 provides one RS485 port and supports the Modbus RTU protocol. Up to 32 devices can

be connected on a RS485 bus. The overall length of the RS485 cable connecting all devices should

not exceed 1200m.

If the master station does not have a RS485 communications port, a RS232/RS485 or USB/RS485

converter with optically isolated outputs and surge protection should be used.

The following figure illustrates the RS485 communications connections on the PMC-509:

Figure 2-5 RS485 Communications Connections

2.5 Digital Input Wiring

The following figure illustrates the Digital Input connections on the PMC-509:

Figure 2-6 DI Connections

2.6 Power Supply Wiring

For AC supply, connect the live wire to the L/+ terminal and the neutral wire to the N/- terminal. For

DC supply, connect the positive wire to the L/+ terminal and the negative wire to the

N/- terminal. Connect the GND terminal to ground.

Figure 2-7 Power Supply Connections

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Chapter 3 Front Panel

The PMC-509 has a large, backlit, easy to read LCD display and four buttons which allow for

convenient access to various measurements as well as the configuration of the device's setup

parameters. This chapter introduces the PMC-509's front panel operations.

Figure 3-1 Front Panel for 6I + 3RTD

Figure 3-2 Front Panel for 9I

3.1 Functions of buttons

Buttons View Mode / Menu Level Configuration via Setup or Maintenance Menu

(Default password is a numeric zero “0”)

< >

Scroll to the next Measurement Category in the Main Display or the next menu item inside the Main Menu*.

Before a parameter is selected for modification, pressing this button scrolls to the next parameter in the menu. If a parameter is already selected, pressing this button moves the cursor one position to the left for a numeric parameter or scrolls to the next option in the enumerated list.

<>

Scroll to the next sub-page within the same Measurement Category in the Main Display or the previous menu item inside the Main Menu*.

Before a parameter is selected for modification, pressing this button scrolls to the previous parameter in the menu. If a parameter is already selected, pressing this button increments a numeric value or scrolls to the previous option in the enumerated list.

< >

Pressing this button enters the Main Menu while in the Main Display or the sub-menu if already inside the Main Menu*.

At the parameter configuration level, pressing this button selects the parameter for modification. After changing the parameter, pressing this button again saves the new setting into memory.

< >

Pressing this button returns to the previous menu level if already inside the Main Menu*. This button is ignored at the Main Display.

At the parameter configuration level, pressing this button cancels the changes and exits the parameter configuration mode.

* Refer to Section 3.5 - Using the Main Menu for more information

Table 3-1 Buttons

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3.2 Default Screen

The PMC-509 supports two options for Default Screen, Auto Scroll (default) and Fixed. The Default

Screen can be configured under Main Menu=>Maintenance=>Display Setup (see Section 3.5.3). In

Auto Scroll mode, the PMC-509's display will automatically scroll to the next screen every 4 seconds.

In Fixed mode, the display will remain on the same screen until a button is pressed.

Figure 3-3 PMC-509's Main Display

Figure 3-3 shows the PMC-509's Main Display, which is the first screen that appears upon power up.

The Main Display is also the first screen that the display returns to when exiting from the Main Menu.

If there is no front panel activity for a period longer than the Backlight Timeout, the LCD' backlight as

well as the main parameter display area will be turned off to conserve their lifetime. Only the Date

and Time at the top of the display remains. The display will come out of Backlight Timeout and

return to normal operation as soon as any key is pressed. If the Default Screen is set to Auto Scroll,

the display will first return to the Main Display; otherwise, the display will return to the same screen

that it was on when the backlight timed out.

3.3 Data Display

In Auto Scroll mode, measurements are displayed according to the order shown in the table below.

The display automatically scrolls to the next screen every four seconds.

Display

Screens First Row Second Row Third Row Fourth Row Example

1 Current

"Demand"

(A)

I1 I2 I3

2 I4 I5 I6

3* I7 I8 I9

4

Current

"Demand Max"

(A)

I1 to I6

"Time" Date/Time Stamp

5

6

7

8

9

10*

I7 to I9 11*

12*

13# RTD

"Demand" TC1 TC2 TC3

13


14# RTD

"Demand Max"

TC1

"Time" Date/Time Stamp

15# TC2

16# TC3

17# TC1 TC2 TC3

18 DI1 & DI2 DI3 & DI4

19

Current

I1 I2 I3

20 I4 I5 I6

21* I7 I8 I9

22^ Va Vb Vc Frequency

23^ V12 V23 V31

* When the Hardware Option is 6I+3RTD, the relevant parameters for SM7, SM8 and SM9 are not available. # When the Hardware Option is 9I, all relevant parameters for RTD1, RTD2 and RTD3 are not available. ^ When the Software Option is MDI, the voltage measurements are not displayed in the Auto Scroll display sequence but can be viewed in the MEASUREMENTS option in the Main Menu.

Table 3-2 PMC-509's Data Display Screens in Auto Scroll Mode

In Fixed mode, the screen will advance only when either < > or <> is pressed. The following

table illustrates the display operation in Fixed display mode. Pressing the < > button anytime

moves the display to the next Measurement Category. Pressing the <> button moves the display to

the next Sub-Page within a particular Measurement Category. When the last Sub-Page is reached

within a Measurement Category, pressing the <> button again moves the display back to the first

Sub-Page of the same Measurement Category.

Button Page Measurement Category Button Sub-Page Parameters Sample Display

< >

1 Current Demand

<>

1

2

3*

I1, I2, I3

I4, I5, I6

I7, I8, I9

4 - 9

10* - 12*

Current Demand Max

I1-I6

I7-I9

2# RTD Demand

1 TC1, TC2, TC3

2

3

4

RTD Demand Max

TC1

TC2

TC3

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3# RTD Temperature 1 TC1, TC2, TC3

4 DI Status 1 DI1, DI2

DI3, DI4

5 Current

1

2

3*

I1, I2, I3

I4, I5, I6

I7, I8, I9

6^ Voltage & Frequency

1 V1, V2, V3, Freq

2 V12, V23, V31

* When the Hardware Option is 6I+3RTD, the relevant parameters for SM7, SM8 and SM9 are not available. # When the Hardware Option is 9I, all relevant parameters for RTD1, RTD2 and RTD3 are not available. ^ When the Software Option is MDI, the voltage measurements are not displayed in the Fixed display sequence but can be viewed in the MEASUREMENTS option in the Main Menu.

Table 3-3 PMC-509's Data Display Screens in Fixed Mode

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3.4 PMC-509’s Menu Tree

Figure 3-4 PMC-509's Menu Tree

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3.5 Using the Main Menu

Pressing the < > button in the Main Display enters PMC-509's Main Menu as illustrated in Figure

3-5.

Figure 3-5 PMC-509's Main Menu

There are five options in the Main Menu:

MEASUREMENTS View real-time parameters of SM (Sub-Meters) SETTINGS View Setup parameters SETUP Configure Setup parameters MAINTENANCE Configure Display, Change Password, Clear Operations INFORMATION View Device Information

The following Sections describe front panel navigation within each option.

3.5.1 MEASUREMENTS

From the Main Menu, scroll to the MEASUREMENTS option and then press the < > button to

enter its sub-menu.

Sub-Menu Category Group Parameters

REAL METER (Sub-Meters)

Real Time Voltage Va, Vb, Vc, Frequency, Vab, Vbc, Vca

Current I1, I2, I3, I4, I5, I6, I7*, I8*, I9*

Demand

Current Demand I1, I2, I3, I4, I5, I6, I7*, I8*, I9*

Current Demand Max. I1, I2, I3, I4, I5, I6, I7*, I8*, I9*

RTD Demand# TC1, TC2, TC3

RTD Demand Max# TC1, TC2, TC3

RTD RTD Temperature TC1, TC2, TC3 * When the Hardware Option is 6I+3RTD, the relevant parameters for SM7, SM8 and SM9 are not available. # RTD and RTD Demand will only appear when the Hardware Option is 6I+3RTD.

Table 3-4 MEASUREMENTS

3.5.2 SETTINGS and SETUP

From the Main Menu, scroll to the SETTINGS or SETUP option and then press the < > button to

enter its sub-menu. The SETTINGs option only allows the viewing of the Setup parameters. To

configure the Setup parameters, the SETUP option should be used.

The user is required to enter a password before making configuration changes to the device with the

SETUP option. The default password is "0" (numeric zero).

Sub-Menu Setup Parameters Description

(Range/Options)

6I+3RTD 9I

Default

System Setup

Type Wiring Connection (WYE/DELTA/DEMO) WYE

PT Ratio PT Ratio (1~ to 2200) 1

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CT1 Ratio

Set Sub-Meter's CT Ratio 1~ to 6000 (5A input)

1~ to 30000 (1A input)

320 80

CT2 Ratio 320 80

CT4 Ratio 320 80

CT4 Ratio 80 80

CT5 Ratio 80 80

CT6 Ratio 80 80

CT7 Ratio* 80 80

CT8 Ratio* 80 80

CT9 Ratio* 80 80

DMD Period Sliding Window Interval (1 to 99 minutes) 10

Num of Windows Number of Sliding Windows (1 to 15) 1

Comm. Setup

Unit ID Modbus Address (1 to 247) 100 101

Baudrate Data rate in bits per second (bps) (1200/2400/4800/9600/19200)

9600

Data Format Data Format (8N2/8O1/8E1/8N1/8O2/8E2) 8E1

Clock Setup^

Date Format Data Format of date

(YYYY/MM/DD, DD/MM/YYYY, MM/DD/YYYY) YYYY/MM/DD

Date Set Date 20YY/MM/DD

Clock Set Time HH:MM:SS

Energy Preset^

kWh Preset kWh Import/Export

SM1/2/3/4/5/6/7*/8*/9* kvarh Preset kvarh Import/Export

kVAh Preset kVAh ~Default *When the Hardware Option is 6I+3RTD, these Setup parameters are not available. # ^These sub-menus are only available in the SETUP option and not the SETTINGS option.

Table 3-5 Setup Parameters

3.5.3 MAINTENANCE

From the Main Menu, scroll to the MAINTENANCE option and then press the < > button to enter

its sub-menu. A password is required before entering this option. The default password is "0"

(numeric zero).

Sub-Menu Parameters Description Range/Options

Display Setup

Default Screen Default display mode Auto Scroll~/Fixed

Backlight Timeout In minutes 0-60 (default=3)

LCD Contrast The higher the value the darker

the display 0-9 (default=5)

Password Setup New Password

Change Password 0000-9999

(default=0000) Confirm Password

Clear Setup

Clear Max. Demand Log Clear Maximum Demands

Yes/No~ Clear Energy Clear Energy Counters

Clear SOE* Clear SOE Log ~Default

*When the Hardware Option is 6I+3RTD, these Setup parameters are not available.

Table 3-6 Maintenance

3.5.4 INFORMATION

From the Main Menu, scroll to the INFORMATION option and then press the < > button to enter

its sub-menu.

Sub-Menu Parameters Description Note/Option

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Device Info

Hardware Basic Function 3V+6I+3RTD

3V+9I

Type Software Function FULL FUNC (MFM)

MDI

Firmware Firmware Version e.g. VA.02.11

Protocol Protocol Version e.g. VB.3

Update Date of the latest firmware update e.g. 11.07.09

SN Serial Number e.g.1108471895

Table 3-7 Information

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Chapter 4 Applications

4.1 RTD Inputs

The PMC-509 provides three optional RTD Temperature Inputs that can accept the Pt100 sensor as

described in Appendix C for temperature measurements. The outputs of the Pt100 sensor are

connected to the RTD Inputs of the PMC-509 if so equipped.

The Temperature Input provides accurate temperature monitoring/alarming and is mainly used for

measuring the temperature for neutral conductor, transformer, enclosure's ambient temperature or

other equipment that requires temperature monitoring. Please refer to Section 4.3.2 for a complete

description of the Temperature Setpoint operations.

4.2 Demand Measurements

Demand is defined as the average power consumption over a fixed interval (usually 10 or 15 minutes).

The PMC-509 supports the sliding window demand calculation and has the following Setup

parameters:

# of Sliding Windows: 1-15 (default = 1) Demand Period: 1, 2, 3, 5, 10, 15, 30, 60 minutes. For example, if the # of Sliding

Windows is set as 1 and the Demand Period is 10, the demand cycle will be 1×10=10min.

The PMC-509 provides an extensive list of Demand and Maximum Demand parameters. Please refer

to Section 3.5.1 for more details.

4.3 Setpoints

4.3.1 Control Setpoints

The PMC-509 comes standard with 27 user programmable control setpoints which provide extensive

control by allowing a user to initiate an action in response to a specific condition. Typical setpoint

applications include alarming, demand control, fault detection and power quality monitoring.

The setpoints can be programmed over communications and have the following setup parameters:

1) Setpoint Type:

Specify the monitoring condition – Over Setpoint, Under Setpoint, or Disabled.

2) Setpoint Parameter:

Specify the parameter to be monitored. Table 4-3 below provides a list of Setpoint Parameters.

3) Setpoint Active Limit :

Specify the value that the setpoint parameter must exceed for Over Setpoint or go below for Under Setpoint for the setpoint to become active.

4) Setpoint Inactive Limit:

Specify the value that the setpoint parameter must go below for Over Setpoint or exceed for Under Setpoint for the setpoint to become inactive.

5) Setpoint Active Delay:

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Specify the minimum duration in seconds that the setpoint condition must be met before the setpoint becomes active. An event will be generated and stored in the SOE Log. The range of the Setpoint Active Delay for the Standard Setpoint is between 0 and 9,999 (seconds).

6) Setpoint Inactive Delay:

Specify the minimum duration in seconds that the setpoint Return condition must be met before the setpoint becomes inactive. An event will be generated and stored in the SOE Log. The range of the Setpoint Active Delay for the Standard Setpoint is between 0 and 9,999 (seconds).

7) Setpoint Trigger:

Specify what action the setpoint will take when it becomes active. These actions include No Trigger and Trigger Data Recorder X.

The PMC-509 provides the following Setpoint Parameters:

Key Parameter Scale/Unit

0 None /

1 Reserved x100, Hz

2 VLN x100, V

3 VLL x100, V

4 Reserved

5 SM1 Current x1000, A






11 SM7 Current* x1000, A



14-82 Reserved

83 RTD1 Temperature# ×10, °C


85 RTD3 Temperature# ×10, °C * When the Hardware Option is 6I+3RTD, the measurements are not available.

# When the Hardware Option is 9I, the measurements are not available.

Table 4-3 Setpoint Parameters

4.3.2 Temperature Setpoint

The Temperature Setpoint can be used to monitor equipment temperature and provide alarming and

control capability if the temperature measurement exceeds a pre-determined level.

The following table illustrates the operational behavior of the Temperature ALARM Setpoint.

Temperature Setpoint ALARM

Mode ON/OFF

ALARM Setpoint Limit 55 to 140 (°C)

Action/Release Delay 0.0 to 400 (x0.1s)

Action

1) Temperature >= ALARM Setpoint Limit

2) The ALARM Setpoint becomes active when the Temperature measurement has

exceeded the ALARM Setpoint Limit for a duration longer than the Action

Delay time.

3) When ALARM is active, an SOE event would be generated

Release 1) Temperature < 0.8 × ALARM Setpoint Limit.

21


2) The ALARM becomes inactive when the Temperature measurement is less

than 0.8 x ALARM Setpoint Limit for a duration longer than the Release Delay

time.

3) An SOE event would be generated when the ALARM becomes inactive

Table 4-4 Temperature ALARM Setpoint

4.4 Logging

4.4.1 Max Demand Log

The PMC-509 provides an extensive list of Maximum Demand parameters with timestamp since the

last reset. Please refer to Section 3.5.1 for more details.

The Maximum Demand can be reset manually from the front panel or via communications. Please

refer to Section 3.5.3 for more details on how to reset the Maximum Demand from the Front Panel.

4.4.2 Data Recorder (DR) Log

The PMC-509 comes equipped with 8MB of memory and provides up to 8 Data Recorders (DR)

capable of recording 16 parameters each. The recorded data is stored in the device’s non-volatile

memory and will not suffer any loss in the event of a power failure.

The programming of the Data Recorder is only supported over communications. Each Data Recorder

provides the following setup parameters:

1) Triggered Mode: 0=Disabled / 1=Triggered by Timer / 2=Triggered by Setpoint

2) Recording Depth: 0 to 65535 (entry)

3) Recording Interval: 1 to 3456000 seconds

4) Recording Offset: 0 to 43200 seconds

5) Number of Parameters: 0 to 16

6) Parameter 1 to 16: 0 to 115 (Please see Appendix A DR Parameters)

The Data Recorder Log is only operational when the values of Triggered Mode, Recording Depth,

Recording Interval, and Number of Parameters are all non-zero.

The Recording Offset parameter can be used to delay the recording by a fixed time from the

Recording Interval. For example, if the Recording Interval parameter is set to 3600 (hourly) and the

Recording Offset parameter is set to 300 (5 minutes), the recording will take place at 5 minutes after

the hour every hour, i.e. 00:05, 01:05, 02:05, …etc. The programmed value of the Recording Offset

parameter should be less than that of the Recording Interval parameter.

22


Chapter 5 Modbus Register Map

This chapter provides a complete description of the Modbus register mapping (Protocol Version V1.0)

for the PMC-509 MDI (Maximum Demand Indicator) to facilitate the development of 3rd

party

communications driver for accessing information on the PMC-509. The PMC-509 supports the

following Modbus functions:

1) Read Holding Registers (Function Code 0x03) 2) Force Single Coil (Function Code 0x05) 3) Preset Multiple Registers (Function Code 0x10) 4) Read General Reference (Function Code 0x14)

The register addresses are listed as Offset addresses without the Modbus Address Prefix, 4 for

Holding Registers and 0 for Coil Registers. Therefore, it’s not necessary to subtract 400001 for

Holding Registers or 000001 for Coil Registers to obtain the starting address number. For a complete

Modbus Protocol Specification, please visit http://www.modbus.org.

Read General Reference Packet Structure (Function Code 0x14)

Read Reference Request Packet (Master Station to PMC-509)

Read Reference Response Packet (PMC-509 to Master Station)

Slave Address 1 Byte Salve Address 1 Byte

Function Code (0x14) 1 Byte Function Code (0x14) 1 Byte

Byte Count 1 Byte Byte Count 1 Byte (NxN0+2)

Sub-Req X, Reference Type (0x06) 1 Byte Sub-Req X, Byte Count 1 Byte (NxN0+1)

Sub-Req X, File Number 2 Bytes Sub-Req X, Reference Type (0x06) 1 Byte

Sub-Req X, Start Address 2 Bytes Sub-Req X, Register Data NxN0 Bytes

Sub-Req X, Register Count 2 Bytes Sub-Req X+1……

Sub-Req X+1……

Error Check (CRC) 2 Bytes Error Check (CRC) 2 Bytes

Notes:

1) Modbus function code 0x14 is used to access the Data Recorder Log. 2) Start Address =Modulo [(Log #X Pointer -1)/ Log #X Depth]. 3) In the Request Packet, the File Number parameter is used to reference which log to read:

a) For Data Recorder Logs 1 to 8, File Number = 1 to 8 4) In the Response Packet, N represents the number of logs returned, and N0 is the length of a single

log: a) For Data Recorder, N0 = n*4+6 where n is the number of parameters for a particular Data

Recorder

5.1 Basic Measurements

Offset Addresses Property Description Format Scale/Unit

0000 RO Va UINT32 ×100, V1

0002 RO Vb UINT32 ×100, V

0004 RO Vc UINT32 ×100, V

0006 RO Vab UINT32 ×100, V

0008 RO Vbc UINT32 ×100, V

0010 RO Vca UINT32 ×100, V

0012 RO FREQ UINT16 ×100, Hz

0013 RO SM1 Current UINT32 ×1000, A

0015 RO

Reserved

0017 RO

0019 RO

0021 RO


0024 RO

Reserved

0026 RO

0028 RO

http://www.modbus.org/

23


0030 RO

…… ……


0060 RO

Reserved

0062 RO

0064 RO

0066 RO

0067 RO SM7 Current2 UINT32 ×1000, A

0069 RO

Reserved

0071 RO

0073 RO

0075 RO


0078 RO

Reserved

0080 RO

0082 RO

0084 RO


0087 RO

Reserved

0089 RO

0091 RO

0093 RO

0094 RO RTD1 Temperature3 INT16 ×10, °C



0097 RO Alarm 14 UINT16

0098 RO Alarm 24 UINT16

0099 RO DI Status5 UNIT16

0100 RO Reserved UINT32

0102 RO DR #1 Pointer UINT32








0118-0161 Reserved

Table 5-1 Basic Measurements

Notes:

1) “×100, V” indicates the value returned in the register is 100 times the actual engineering value with the unit V (voltage). For example, if a register contains a value 22003, the actual value is 22003/100=220.03V.

2) When the Hardware Option is 6I+3RTD, all registers of SM7, SM8 and SM9 are reserved.

3) When the Hardware Option is 9I, all registers associated with RTD1, RTD2 and RTD3 are reserved.

4) The Alarm register indicates the various alarm states with a bit value of 1 meaning active and 0 meaning inactive. The following table illustrates the details of the Alarm 1 and Alarm 2 register.

Bit Alarm 1 Event Bit Alarm 1 Event

B0 Setpoint #1 B8 Setpoint #9








Table 5-2 Alarm 1 Register (0097)

24


Bit Alarm 1 Event Bit Alarm 1 Event






B5 Setpoint #22 B11-B15 Reserved

Table 5-3 Alarm 2 Register (0098)

5) For the DI Status register, the bit values of B0 to B3 represent the states of DI1 to DI4, respectively, with “1” meaning active (closed) and “0” meaning inactive (open).

5.2 Demand

5.2.1 Real-time Demand


1000 RO SM1 Current Demand INT32 x1000, A

1002 RO

Reserved

1004 RO

1006 RO


1010 RO

Reserved

1012 RO

1014 RO


1018 RO

Reserved

1020 RO

1022 RO


1026 RO

Reserved

1028 RO

1030 RO


1034 RO

Reserved

1036 RO

1038 RO


1042 RO

Reserved

1044 RO

1046 RO

1048 RO SM7 Current Demand1 INT32 x1000, A

1050 RO

Reserved

1052 RO

1054 RO


1058 RO

Reserved

1060 RO

1062 RO


1066 RO

Reserved

1068 RO

1070 RO

1072 RO RTD1 Temperature Demand2 INT32 ×10, °C



1078-1113 RO Reserved

Table 5-4 Real-time Demand

Notes: 1) When the Hardware Option is 6I+3RTD, all registers of SM7, SM8 and SM9 are reserved. 2) When the Hardware Option is 9I, all registers associated with RTD1, RTD2 and RTD3 are

reserved.

25


5.2.2 Maximum Demand


1400 RO SM1 Current Demand Max

See Section 5.8.1

Max Demand Data Structure

x1000, A

1405 RO SM2 Current Demand Max x1000, A





1430 RO SM7 Current Demand Max 1 x1000, A



1445 RO RTD1 Demand Max 2 ×10, °C

1450 RO RTD2 Demand Max2 ×10, °C

1455 RO RTD3 Demand Max2 ×10, °C

Table 5-5 Max Demand

Notes: 1) When the Hardware Option is 6I+3RTD, all registers of SM7, SM8 and SM9 are reserved. 2) When the Hardware Option is 9I, all registers associated with RTD1, RTD2 and RTD3 are

reserved.

5.3 Setup Parameters

Offset Addresses

Property Description Format Range/Options

6000 RW Unit ID UINT16 1 to 247

(6I+3RTD: Default = 100) (9I: Default = 101)

6001 RW Baud rate UINT16

0=1200 1=2400 2=4800 3=9600* 4=19200

6002 RW Comm. Config. UINT16

0=8N2 1=8O1 2=8E1* 3=8N1 4=8O2 5=8E2

6003 RW RTD1 Type1, 2 UINT16 0=Reserved 1*= Pt100

6004 RW RTD2 Type1, 2 UINT16

6005 RW RTD3 Type1, 2 UINT16

6006 RW Demand Period UINT16 1 to 99 (min)

(Default = 10min)

6007 RW Number of Sliding Windows UINT16 1* to 15

6008 RW

Reserved

UINT16

6009 RW UINT16

6010 RW UINT16

6011 RW UINT16

6012 RW SM1 CT Ratio5 UINT16 Range: 1 to 6000 (5A input)

1 to 30000 (1A input) Defaults: 6I+3RTD:

SM1-3 CT Ratio = 320 SM4-6 CT Ratio = 80

9I: SM1-9 CT Ratio = 80

6013 RW SM2 CT Ratio5 UINT16








6021-6049 RW Reserved

6050-6058 RW Setpoint #1 Setpoint Data

Structure

See Section 5.8.2 Control Setpoint Data Structure

6059-6067 RW Setpoint #2


26

























6284-6292 RW Setpoint #27 * Default

Table 5-6 Setup Parameters

Notes: 1) When the Hardware Option is 9I, all Setup Registers associated with RTD1, RTD2 and RTD3

are reserved. 2) When the RTD Type is set as 0 (reserved), the RTD Inputs will not detect if a sensor is

connected.

5.4 Maintenance Registers

Offset Addresses Property Description Format Note

6500 RW Backlight Time-out1 UINT16 0 to 60 (min)

(Default=3min)

6501 RW LCD Contrast UINT16 0 to 9

(Default=5)

6502 RW Default Screen2 UINT16 0*=Auto Scroll

1=Fixed Display

6503 RW Date Format UINT16 0*=YY/MM/DD 1=DD/MM/YY 2=MM/DD/YY

6504-6509 RW Reserved

6510 Reserved UINT16

6511 WO Clear Max Demand Log UINT16 Writing”0XFF00” to the register clears the Max

Demand Log

6512 Reserved UINT16

6513 WO Clear DR #1 UINT16

Writing “0xFF00” to the register clears the respective

Data Recorder








Table 5-8 Maintenance Registers

Notes:

1) The Backlight Time-out can be set from 0 to 60 minutes. A zero (0) value indicates that the backlight time-out is disabled.

2) When the Default Screen is Auto Scroll, the display will automatically scroll to the next

27


measurement page every 4 seconds. When the Default Screen is Fixed, automatic scrolling is disabled.

5.5 Data Recorder Setup Parameters

5.5.1 Data Recorder Setup Parameters

Offset Addresses Property Description Format

7000-7022 RW Data Recorder #1

See Section 5.8.3 DR Setup Parameters Data

Structure








Table 5-9 Data Recorder Setup Parameters

5.5.2 Data Recorder Setup Data Structure

Offset Property Description Format Range/Options

+0 RW Triggered Mode1,6 UINT16 0=Disabled

1=Triggered by Timer 2=Triggered by Setpoint

+1 RW Recording Depth2,6 UINT16 0 to 65535

+2 RW Recording Interval6 UINT32 1 to 345600 (seconds)

+4 RW Recording Offset3,6 UINT32 0 to 43200 (seconds)

+6 RW Number of Parameters4,6 UINT16 0 to 16

+7 RW Parameter 15 UINT16 0 to 115
















Table 5-10 DR Setup Parameters Data Structure

Notes: 1) The Data Recorder can be triggered by Setpoints (Triggered by Setpoint), or on a time basis

using the meter clock (Triggered by Timer). For Triggered by Setpoint, the Data Recorder starts recording when the setpoint becomes active and stops when the Setpoint becomes inactive.

2) If the “Recording Depth” is set to “0”, the Data Recorder will be disabled. 3) The Recording Offset parameter can be used to delay the recording by a fixed time from the

Recording Interval. For example, if the Recording Interval parameter is set to 3600 (hourly) and the Recording Offset parameter is set to 300 (5 minutes), the recording will take place at 5 minutes after the hour every hour, i.e. 00:05, 01:05, 02:05…etc. The programmed value of the Recording Offset parameter should be less than that of the Recording Interval parameter.

4) If the “Number of parameters” is set to “0”, the Data Recorder will be disabled. 5) The Data Recorder can record any one of the 116 parameters documented in Appendix A

Data Recorder Parameters.

28


6) Modifying “Recording Mode”, “Recording Depth”, “Recording Interval”, “Recording Offset”, “Number of Parameters” and “Parameters 1 to 16” will clear the DRx Log.

7) The number of Data Recorder is a dynamic variable, but the sum of all space can’t exceed 8M.

5.6 Time

There are two sets of Time registers supported by the PMC-509 -

Year/Month/Day/Hour/Minute/Second (Registers # 60000 to 60002 for 6-digit addressing and

Registers # 9000 to 9002 for 5-digit addressing) and UNIX Time (Registers # 60004 to 600005 for

6-digit addressing and Registers # 9004 to 9005 for 5-digit addressing). When sending time to the

PMC-509 over Modbus communications, care should be taken to only write one of the two Time

register sets. All registers within a Time register set must be written in a single transaction. If

registers 60000 to 60004 (9000 to 9004 for 5-digit addressing) are being written to at the same time,

both Time register sets will be updated to reflect the new time specified in the UNIX Time register set

60004 (9004) where the time specified in registers 60000 to 60003 (9000-9003 for 5-digit addressing)

will be ignored. Writing to the Millisecond register 60003 (9003 for 5-digit addressing) is optional

during a Time Set operation. When broadcasting time, the function code must be set to 0x10

(Pre-set Multiple Registers). Incorrect date or time values will be rejected by the meter.

Offset Addresses Property Description Format Note

6-digit 5-digit

60000 9000 RW

High-order Byte: Year

UINT16

0-99 (Year-2000)

Low-order Byte: Month 1 to 12

60001 9001 RW

High-order Byte: Day

UINT16

1 to 31

Low-order Byte: Hour 0 to 23

60002 9002 RW

High-order Byte: Minute

UINT16

0 to 59

Low-order Byte: Second 0 to 59

60003 9003 RW Millisecond UINT16 0 to 999

60004-60005 9004-9005 RW UINX Time UINT32

(0 to 4102444799) This time shows the number

of seconds since 00:00:00 January 1, 1970

Table 5-11 Time Registers

5.7 Meter Information

Offset Address Property Description Format Note

6-digit 5-digit

60200- 60219

9800- 9819

RO Meter model1 UINT16 See Table 5-13

60220 9820 RO Firmware Version UINT16 e.g. 10000 means V1.00.00

60221 9821 RO Protocol Version UINT16 e.g. 20 means V2.0

60222 9822 RO Firmware Update Date:

Year-2000 UINT16

e.g. 080110 means January 10, 2008


Month UINT16


Day UINT16

60225 9825 RO

Serial Number: XX(Year-2000) - XX(Month) -

XX(Lot Number) - XXXX(Meter Number)

UINT32

e.g. 0908471895 means that this meter was the 1895th meter manufactured in Lot 47 of

August 2009

60227- 9827- RO Reserved UINT16

29


60228 9828

60229 9829 RO Feature Number UINT16 0=3V+6I+3RTD

1=3V+9I

Table 5-12 Device Information

Note: 1) The Meter Model appears in registers with offset addresses 60200 to 60219 (or 9800 to

9819 for 5-digit addressing) and contains the ASCII encoding of the string “PMC-509” as shown in the following table.

Offset Address Value(Hex) ASCII

6-digit 5-digit

60200 9800 0x50 P

60201 9801 0x4D M

60202 9802 0x43 C

60203 9803 0x2D -

60204 9804 0x35 5

60205 9805 0x30 0

60206 9806 0x39 9

60207-60219 9807-9819 0x20 Null

Table 5-13 ASCII Encoding of “PMC-509”

5.8 Data Format

5.8.1 Max Demand Data Structure

Offset Property Description Format Note

+0 RO High-order Byte: Max Demand INT32 /

+1 RO Low-order Byte: Max Demand INT32 /

+2 RO High-order Byte: Year

UINT16 1 to 99 (Year-2000)


+3 RO High-order Byte: Day

UINT16 1 to 28/29/30/31


+4 RO High-order Byte: Minute

UINT16 0 to 59


Table 5-14 Max Demand Data Structure

5.8.2 Control Setpoint Data Structure

Offset Property Description Format Range/Options

+0 RW Type UINT16 0*=Disabled

1=Over Setpoint 2=Under Setpoint

+1 RW Paramenter1 UINT16 0* to 85

+2 RW Active Limit UINT32

+4 RW Inactive Limit UINT32

+6 RW Active Delay UINT16 0* to 9999 (second)

+7 RW Inactive Delay UINT16 0* to 9999 (second)

+8 RW Trigger2 UINT16 0 to 8 * Default

Table 5-15 Setpoint Data Structure

Notes: 1) “Parameter” specifies the parameter to be monitored. Table 5-16 below provides a list of

Setpoint Parameters. Key Parameter Scale/Unit

0 None /

1 Frequency x100, Hz

2 VLN x100, V

30


3 VLL x100, V

4 Reserved x100, %










14-82 Reserved Reserved



85 RTD1 Temperature# ×10, °C # When the Hardware Option is 9I, all parameters associated with RTDx have no meanings and therefore should not be used for setpoint monitoring.

Table 5-16 Setpoint Parameters

2) “Trigger” specifies what action the setpoint will take when it becomes active. Table 5-17

below provides a list of Setpoint Triggers.

Key Action Key Action

0 None 5 Data Recorder #5

1 Data Recorder #1 6 Data Recorder #6



4 Data Recorder #4

Table 5-17 Setpoint Triggers

5.8.3 Data Recorder Log Data Structure

Offset Property Description Format Note

+0 RO Parameter 1 INT32 /

+2 RO Parameter 2 INT32 /

…… RO …… INT32 /

Nx2 RO Parameter N (N=1 to 16) INT32 /

Nx2+1 RO High-order Byte: Year

UINT16 1 to 99 (Year-2000)


Nx2+2 RO High-order Byte: Day

UINT16 1 to 28/29/30/31


Nx2+3 RO High-order Byte: Minute

UINT16 0 to 59


Table 5-18 DR Data Structure

31


Appendix A - Data Recorder Parameters

Key Parameters Scale/Unit Key Parameters Scale/Unit

0 None / 1 Frequency ×100, Hz

2 RTD1 Temperature ×10, °C 3 RTD2 Temperature ×10, °C

4 RTD3 Temperature ×10, °C 5 Va x100, V

6 Vb x100, V 7 Vc x100, V

8 Vab x100, V 9 Vbc x100, V

10 Vca x100, V 11 SM1 Current x1000, A

12 SM2 Current x1000, A 13 SM3 Current x1000, A




20-90 Reserved 21-91 Reserved

92 SM1 Current Demand x1000, A 93 SM2 Current Demand x1000, A




100 SM9 Current Demand x1000, A 101 RTD1 Temperature Demand ×10, °C

102 RTD2 Temperature Demand ×10, °C 103 RTD3 Temperature Demand ×10, °C

104-114 Reserved

105-115 Reserved

32


Appendix B - Temperature Sensor

Hoop Model Diameter Range of Hoop Weight

PMC-DN-30 18 to 32mm <=58g

PMC-DN-50 27 to 51mm <=62g

PMC-DN-55 33 to 57mm <=64g

PMC-DN-60 40 to 63mm <=66g

Technical Specification

Material Platinum resistor Pt100

Work Range -40°C to 200°C

Accuracy ±(0.30+0.005|t|)

Line Length 3000mm

Protective Tube Length 30mm

33


Appendix C - Technical Specification

Power Supply (L+, N-, GND)

Standard

Burden

95-250VAC/DC, ±10%, 47-440Hz

3W

Voltage Inputs (V1, V2, V3, VN)

Standard (Un)

Range

PT Ratio

Overload

Burden

240VLN/415VLL

10% to 120% Un

1-2200

1.2xUn continuous, 1.6xUn for 10s

<0.5VA @ 240V

Current Inputs (I11, I12, ... I91, I92)

Standard (In/Imax)

Optional (In/Imax)

Range

CT Ratio

Overload

Burden

5A / 6A

1A / 1.2A

0.1% In to 120% In

1-6,000 (5A), 1-30,000 (1A)

1.2xIn continuous, 10xIn for 1s

<0.25VA @ 5A

RTD Temperature Input (TC1, TC2, TC3)

Type

Range

2-wire Pt100

-40 °C to 200 °C

Digital Inputs (DI1 to DI4, DICOM)

Type

Sampling

Debounce

Dry contact, 24VDC internally wetted

1000Hz

1ms minimum

Environmental conditions

Operating temp

Storage temp

Humidity

Atmospheric pressure

-25°C to +70°C

-40°C to +85°C

5% to 95% non-condensing

70 kPa to 106 kPa

Mechanical Characteristics

Installation

Unit Dimensions

IP Rating

Shipping Weight

Shipping Dimensions

Standard DIN-Rail Mount

180x94.5x57.5mm

52

0.7kg

222x136x100mm

34


Appendix D - Standards Compliance

Safety Requirements

CE LVD 2006 / 95 / EC EN61010-1-1-2001 Insulation

Dielectric test: 2kV @ 1 minute

Insulation resistance: >100MΩ

Impulse voltage: 5kV, 1.2/50µs

IEC 60255-5-2000

Electromagnetic Compatibility

CE EMC Directive 2004 / 108 / EC (EN 61326: 2006)

Immunity Tests

Electrostatic discharge IEC 61000-4-2:2008 Level IV

Radiated fields IEC 61000-4-3:2008 (10 V/m)

Fast transients IEC 61000-4-4:2004 Level IV

Surges IEC 61000-4-5:2005 Level V

Conducted disturbances IEC 61000-4-6:2008 Level III

Magnetic Fields IEC 61000-4-8:2009 Level IV

Oscillatory waves IEC 61000-4-12:2006 Level III

Electromagnetic Emission IEC 60255-25: 2000

Emission Tests

Limits and methods of measurement of

electromagnetic disturbance characteristics of

industrial, scientific and medical (ISM)

radio-frequency equipment

EN 55011: 2009 (CISPR 11)

Limits and methods of measurement of radio

disturbance characteristics of information

technology equipment

EN 55022: 2006+A1: 2007

(CISPR 22)

Limits for harmonic current emissions for

equipment with rated current ≤16 A EN 61000-3-2: 2006+A1: 2009

Limitation of voltage fluctuations and flicker in

low-voltage supply systems for equipment with

rated current ≤16 A

EN 61000-3-3: 2006

Emission standard for residential, commercial

and light-industrial environments EN 61000-6-3: 2007

Electromagnetic Emission Tests for Measuring

Relays and Protection Equipment IEC 60255-25: 2000

Mechanical Tests

Vibration Test Response IEC 60255-21-1 Level I

Endurance IEC 60255-21-1 Level I

Shock Test Response IEC 60255-21-2 Level I

Endurance IEC 60255-21-2 Level I

Bump Test IEC 60255-21-2 Level I

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