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Rockwell Automation Publication 1769-UM021G-EN-P - October 2015 209

Use I/O Modules with CompactLogix 5370 L2 Controllers Chapter 8

Where

(cont.)

Inpt

Dta Fm

ChIx

Use these bits to select the form the analog input data is presented to the controller and used by the controller. The combination of multiple selections in

words and bits determines this value.

For more information on what selections determine the input data form that is used, see Table 20 on page 212

Inpt Tp

/ Rnge

Sel

ChIx

Use these bits to select the input type and operating range for a channel. For more information on what selections determine the input type and operating

range for a channel, see Table 21 on page 212

Filter

Setting

Chx

Use these bits to select the filter setting for a channel. For more information on what selections determine the filter settings for a channel, see Table 19 on

page 211.

Process

Alarm

High

Data

Value

Channel

Use to configure the Process Alarm High value for a channel. Configuration is done by using words 4, 10, 16, and 22 to set the Alarm High value.

Process

Alarm

Low

Data

Value

Channel

Use to configure the Process Alarm Low value for a channel. Configuration is done by using words 5, 11, 17, and 23 to set the Low High value.

Alarm

Dead

Band

Data

Value

Channel

Use to configure the Alarm Deadband value for a channel. Configuration is done by using words 6, 12, 18, and 24 to set the deadband alarm value.

ETS Use to enable or disable the timestamping function on the module.

0 = Disable

1 = Enable

Real

Time

Stamp

Value

Use to set the Real Time Sample value. The available range = 0…5000 ms.

Update

CJCCo

mpens

ationE

Use this bit to enable or disable a CJC sensor.

• If enabled, the CJC is read once every other module scan, and its value is updated in the CJC status word. This value is also used for thermocouple cold

junction compensation.

• If disabled, the CJC sensor value is not acquired, and the CJC temperature is fixed at 25 °C (77 °F) for all channels. The CJC is also fixed at 25 °C

(77 °F) for all channels if it is determined to be broken (short or open circuit).

0 = Disable

1 = Enable

Cycle

Calib

Use this bit to enable Cycle Calibration.

• If enabled, the internal calibration of the module occurs once every 5 minutes.

• If disabled, the internal calibration of the module occurs only once at power on/ reset.

Cycle Calibration enables the module to readjust for environmental changes such as variations in temperature. However, the module throughput is slightly

reduced during the calibration operation.

0 = Disable

1 = Enable

Table 18 - CompactLogix 5370 L2 Controller Embedded Analog I/O Module Configuration Image Array

Word Bit

1514131211109876543210