x67ai1323-eng

X67 System modules • Analog input modules • AI1323

8.3 AI1323

8.3.1 General information

The AI1323 module is equipped with four inputs with 12 bit digital converter resolution. The inputsignal is 0-20 mA.

• 4 analog inputs 0 - 20 mA

• Open circuit recognition

• Configurable digital input filter

• Very short cycle times

• Optimal shielding dissipation on all channels

8.3.2 Order data

Model number Short description Figure

Analog input module

X67AI1323 X67 analog input module, 4 inputs, 0 - 20 mA, 12 bit resolution, configurable input filter, LED status indicators

Required accessories

See 14 "Overview of pin connections" on page 647

Table 281: AI1323 - Order data

368 X67 System User's Manual V 2.01


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8.3.3 Technical data

Product ID AI1323

Short description

I/O module 4 analog inputs 0 - 20 mA

Analog inputs

Input 0 - 20 mA

Input type Differential input

Digital converter resolution 12-bit

Conversion time 400 µs for all inputs

Output format UINT

Load <300 Ω

Maximum error at 25°CGainOffset

0.1% 1)

0.05% 2)

Input protection Protection against wiring with supply voltage

General information

Status indicators I/O function for each channel, supply voltage, bus function

DiagnosticsI/O supplyInputs

Yes, with status LED and software statusYes, with status LED and software status

Electrical isolationChannel - BusChannel - Channel

YesNo

Power consumptionX2X Link supplyI/O internal

0.75 W3.0 W

Connection typeX2X LinkInputsModule supply

M12 (B-coded)M12 (A-coded)

M8 (4-pin)

CertificationEx zone 2

CE, cRUus, GOST-RII 3G EEx nA II T5, IP67, Ta = 0 - 60°C

Operational conditions

Operating temperature 0 to +60°C

Mounting orientation Any

Installation at altitudes above sea level0 - 2000 m>2000 m

No deratingReduction of ambient temperature by 0.5°C per 100 m

Protection type IP67

Storage and transport conditions

Temperature -25 to +85°C

Table 282: AI1323 - Technical data

369X67 System User's Manual V 2.01


8.3.4 Additional technical data

Mechanical characteristics

Dimensions (W x H x D) 53 x 85 x 42 mm

Weight 195 g

Torque for connectionsM8M12

Max. 0.4 NmMax. 0.6 Nm

1) Based on the current measurement value.2) Refers to the entire measurement range.

Product ID AI1323

Module supply

Rated voltage 24 VDC

Voltage range 18 - 30 VDC

Integrated protection Reverse polarity protection

Power consumptionSensor supply Max. 12.0 W 1)

Sensor supply

Voltage Module supply minus voltage drop for short circuit protection

Voltage drop for short circuit protection at 500 mA

Max. 2 VDC

Total current Max. 0.5 A

Short circuit protection Yes

Analog inputs

Permitted input signal Max. ±30 mA

Output format INT $0000 - $7FFF / 1 LSB = $0008 = 4.883 µA

Output of the digital value during overloadAbove upper limitBelow lower limit

$7FFF$0000

Conversion method Successive approximation

Voltage drop at 20 mA Typically 4.5 V

Input filterCut-off frequencyAttenuation

1 kHz40 dB

Max gain drift 0.013% /°C 2)

Max offset drift 0.02% /°C 3)

Common-mode rejectionDC50 Hz

>50 dB>50 dB

Table 283: AI1323 - Additional technical data

Product ID AI1323

Table 282: AI1323 - Technical data (Forts.)



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8.3.5 Status LEDs

Synchronized zone ±11 V

Cross-talk between channels >70 dB

Non-linearity <0.1% 3)

Isolation voltage between. input and bus 500 Veff

General information

B&R ID code $16F2

1) The power consumption of the sensors connected to the module may not exceed 12 W.2) Based on the current measurement value.3) Refers to the entire measurement range.

Figure LED Description

Status indicator 1

Status indicator - X2X Link.

Green Red Description

Off Off No supply via X2X Link

On Off X2X Link supplied, communication is functioning

Off On X2X supplied, but X2X communication is not functioning

On On Preoperational: X2X Link supplied, module not initialized

1 - 4 Status display for corresponding analog input (green).

LED Status Description

1 - 4 On The analog/digital converter is running

Blinking Overflow or underflow of the input signal

Off Open connection or sensor is disconnected

Status indicator 2

Status indicator for module function.

LED Status Description

Green Off Module supply not connected

Single flash

Reset mode

Blinking Preoperational mode

On RUN mode

Red Off Module supply not connected or everything is OK

On Error or reset state

Single flash

Warning / error for an I/O channel. Overflow of analoginputs.

Double flash

Supply voltage not in the valid range

Table 284: AI1223 - Status LEDs

Product ID AI1323

Table 283: AI1323 - Additional technical data (Forts.)

Status indicator 1:

left: green; right: red

Status indicator 2:

left: green; right: red



8.3.6 Connection elements

8.3.7 X2X Link

The AI1323 module is connected to the X2X Link with pre-assembled cables. The connection ismade using a circular plug (2 x M12, 4-pin).

Figure 125: AI1323 - Connection elements

Connection Pin assignments

Pin Name

1 X2X+

2 X2X

3 X2X⊥

4 X2X\

A ... B-coded plug in the module, inputB ... B-coded socket in the module, outputSHLD ... Shield connection made via threaded insert in the module

Table 285: AI1323 - X2X Link

Analog inputs4 x M12 (5-pin)

X2X Link2 x M12 (4-pin)Plug A: inputSocket B: output

24 VDC module supply2 x M8 (4-pin)

C: feedSocket D: routingPlug

1

2

3

4

1

4

3

2

A

B



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8.3.8 Analog inputs

The analog inputs are connected using circular plugs (4 x M12, 5-pin).

8.3.9 24 VDC module supply

The module supply connection is made using circular plugs (2 x M8, 4-pin). The supply feed isconnected via plug C. Socket D is used for routing the supply to other modules.

The maximum permitted current for the circular plug is 8 A.


X1 / X2

X3 / X4

Pin Name

1 24 VDC sensor supply

2 Input +

3 GND

4 Input -

5 Shield

Shield connection made via threaded insert in the module.The connections in the module are A-coded sockets.

Table 286: AI1323 - Analog inputs


Pin Name

1 24 VDC

2 24 VDC

3 GND

4 GND

C ... Plug on the module, supply feedD ... Socket on the module, supply routing

Table 287: AI1323 - 24 VDC module supply

21

43

5

32

14

5

12

3

4

3

1

4

2

C

D



8.3.10 Input circuit diagram

8.3.11 Monitoring the module supply

The supply voltage for the inputs is monitored. The status can be read.

8.3.12 Module addressing

Modules are addressed automatically. No settings are required on the module.

Figure 126: AI1323 - Input circuit diagram

VDR>30 V

1 2

34

5

LED (green)

1...4

+

-

0 - 20 mA analog in

AC/DC converter

Short circuit protection

Input value

I/O status

Overloadprotection

1 1

2 2

3 3

4 4

+24 V

GND

Reverse polarityprotection

C DModule supply

monitoring



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8.3.13 Register

The registers are divided in cyclic and acyclic registers.

The following table contains the registers supported by the module:

Register type Register ID

Cyclic Bank 0

Acyclic Bank 32

Table 288: AI1323 - Register ID

Register Description Configuration

Data type Length Read Write Cyclic Acyclic

Bank 0

0 Analog input 1 UINT 1




16 Filter parameters USINT 1

30 Status - Analog inputs USINT 1

Bank 32

0 B&R ID code UINT 1

4 Status - Operating limits USINT 1

16 Current module supply voltage USINT 1

Table 289: AI1323 - Register overview



8.3.14 Cyclic register (bank 0)

Analog inputs

The input status is registered with a fixed offset with respect to the network cycle and istransferred in the same cycle.

Input filter

Filtering for all analog inputs is configured using this register. The minimum cycle time must be>500 µs.

If the input filter is active, then the channels are scanned in ms cycles. The time offset betweenthe channels is 200 µs. The conversion takes place asynchronously to the network cycle.

Bit Description

0 - 2 The filter level is defined using these bits. See also section "Filter level" on page 379.000 ... Filter switched off001 ... Filter level 2010 ... Filter level 4011 ... Filter level 8100 ... Filter level 16101 ... Filter level 32110 ... Filter level 64111 ... Filter level 128

3 0

4 - 6 The input ramp limit is defined using these bits. See also section "Input ramp limitation" on page 377.000 ... The input value is used without limitation001 ... Limit value = $3FFF = 16383010 ... Limit value = $1FFF = 8191011 ... Limit value = $0FFF = 4095100 ... Limit value = $07FF = 2047101 ... Limit value = $03FF = 1023110 ... Limit value = $01FF = 511111 ... Limit value = $00FF = 255

7 0



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Input ramp limitation

Input ramp limitation is executed before filtering takes place.

The amount of the change in the input value is checked to make sure the specified limits are notexceeded. If the values are exceeded, the adjusted input value is equal to the old value ± thelimit value.

The input ramp limitation is very well suited for suppressing disturbances (spikes). The followingexamples show the function of the input ramp limitation based on an input jump and adisturbance.

Example 1: The input value makes a jump from 8,000 to 17,000. The diagram displays theadjusted input value for the following settings:

Input ramp limitation = 4 = $07FF = 2047

Filter level = 0

Figure 127: AI1323 - Adjusted input value for input jump

0

8,000

17,000

t [ms]

Input jump

1 2 3 4 5 6 7 8

Input value

Adjusted input value



Example 2: A disturbance is imposed on the input value. The diagram shows the adjustedinput value with the following settings:

Input ramp limitation = 4 = $07FF = 2047

Filter level = 0

Figure 128: AI1323 - Adjusted input value for disturbance

0

8,000

16,000

t [ms]1 2 3 4 5 6 7 8

Input value

Adjusted input value

Disturbance (spike)



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Filter level

The input value is evaluated according to the filter level. An input ramp limitation can then beapplied using this evaluation.

Formula for the evaluation of the input value:

The following examples show the function of the input ramp limitation based on an input jumpand a disturbance.

Example 1: The input value makes a jump from 8,000 to 16,000. The diagram displays theevaluated value with the following settings:

Input ramp limitation = 0

Filter level = 2 or 4

Figure 129: AI1323 - Evaluated value during input jump

Valuenew ValueoldValueold

Filter level--------------------------- Input value

Filter level-------------------------------+–=

0

8,000

16,000

t [ms]

Input jump

1 2 3 4 5 6 7 8

Input value

Evaluated value: filter level 2




Example 2: A disturbance is imposed on the input value. The diagram shows the evaluatedvalue with the following settings:

Input ramp limitation = 0

Filter level = 2 or 4

Input status

A change in the monitoring status generates an error message. The input value has a lower limitof $0000. Underflow monitoring is therefore not necessary.

Figure 130: AI1323 - Evaluated value during disturbance

Bit Description

0 - 1 Channel 1:00 ... No error10 ... Above upper limit value




0

8,000

16,000

t [ms]1 2 3 4 5 6 7 8

Input value



Disruption (spike)



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8.3.15 Acyclic register (bank 32)

B&R ID code

Code for module identification ($16F2).

Status register operating limits

Current module supply voltage

The supply voltage of the module is measured. Resolution: 1 V

8.3.16 Function models

A function model describes the registers for the module (memory model) which are available forthe application. Only these registers are processed on the module during each cycle andcyclically transferred using the bus. The cycle time can be minimized by selecting the correctfunction model.

Minimum cycle time

The minimum cycle time is the minimum time needed for the bus cycle to be shut down withouta communication error or malfunction occurring. It should be noted that very fast cycles reducethe idle time needed for handling monitoring, diagnostics and acyclic commands.

Minimum I/O update time

The minimum I/O update time refers to the minimum time it takes for the bus cycle to shut down,so that in each cycle an I/O update takes place.

Bit Description

0 0 ... Module supply within the warning limits (18 - 30 V)1 ... Module supply outside the warning limits (<18 V or >30 V)

1 - 7 0



Analog module - Function model (default)

Function model 0

Register Description

Configuration

Data type Length Read Write





16 Filter parameters USINT 1

30 Status of the analog inputs USINT 1

Table 290: AI1323 - Analog module - Function model 0

Minimum cycle time

Without filtering 250 µs

With filtering >500 µs

Table 291: AI1323 - Minimum cycle time

Minimum I/O update time

Inputs without filteringAll channels for each bus cycle2 channels for each bus cycle1 channel for each bus cycle

400 µs300 µs300 µs

Inputs with filtering 1 ms

Table 292: AI1323 - Minimum I/O update time


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