EMSEMS

Energy Management SystemsEnergy Management Systems

Building Management SystemBuilding Management System

CommunicationCommunication

Communication UmbrellaCommunication Umbrella

Monitor and ControlMonitor and Control

Hardwire Hardwire CommunicationCommunication Enable/Disable (Dry Contact)Enable/Disable (Dry Contact)

Alarm (Dry Contact)Alarm (Dry Contact)

Status/Command: 0-10 Vdc /Dry Status/Command: 0-10 Vdc /Dry Contact /4-20 MAContact /4-20 MA

Serial CommunicationSerial Communication

Single set of wires to monitor and Single set of wires to monitor and control various actions.control various actions.

CommunicationCommunication

Control: Hardwire Serial CommunicationControl: Hardwire Serial Communication Monitor: Hardwire Serial CommunicationMonitor: Hardwire Serial Communication

Control through Serial Communication-HOCControl through Serial Communication-HOC Control through Hard Wire-HOAControl through Hard Wire-HOA

Light switch = Hard WireLight switch = Hard Wire

Serial Communication = Your laptopSerial Communication = Your laptop

Control & MonitorControl & Monitor

Control: HardwireControl: Hardwire

Monitor: Serial CommunicationMonitor: Serial Communication

(4-20) control

Enable/Disable Enable/Disable (Dry (Dry Contact)Contact)

Monitor: Serial CommunicationMonitor: Serial Communication

ProtocolProtocol

BACNET MSTP - twisted pairBACNET MSTP - twisted pair BACNET IP – Cat 5BACNET IP – Cat 5 LONLON MOD BUSMOD BUS Proprietary System Proprietary System

Equipment Address:Equipment Address:

Main phone number (510-293-Main phone number (510-293-1993)1993)

(510) Network number(293-1993) Mac Address

Baud Rate: _______ KBPSBaud Rate: _______ KBPS

Speed in kilobytes per secondSpeed in kilobytes per second

KBPS 76.8/KBPS 38.4/KBPS 19.2/KBPS 9.6

Communication BusCommunication Bus

RS-485 – Twisted pair HVACRS-485 – Twisted pair HVAC

RS-232 – 9-pin Industrial typeRS-232 – 9-pin Industrial type

Device Instance ID# Device Instance ID#

Your extensions (# 239)Your extensions (# 239)

Points list or Object ID Is like your voice mailYou can find these in the IOM

Bacnet/network number/ Mac Address/Device Instance/Points list

Bridge/GatewayBridge/Gateway

TranslatorTranslator

English to ChineseEnglish to Chinese

Character formatCharacter format

Number of letters in the wordNumber of letters in the word

8 or 16 bits8 or 16 bits

RepeaterRepeater

Similar to a Pressure Booster Similar to a Pressure Booster SystemSystem

Length of Bus – 4000 ftLength of Bus – 4000 ft

Number of devices – 32 devicesNumber of devices – 32 devices