Channel configuration -22, Channel configuration – Rockwell Automation 1769-OF2 Compact I/O Analog Modules User Manual

Page 72

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Publication 1769-UM002B-EN-P - July 2005

3-22 Module Data, Status, and Channel Configuration for the Input Modules

The configuration file can also be modified through the control program, if
supported by the controller. The structure and bit settings are shown in
Channel Configuration on page 3-22.

Channel Configuration

Each channel’s configuration words consist of bit fields, the settings of which
determine how the channel operates. See the table below and the descriptions
that follow for valid configuration settings and their meanings. The default bit
status of the configuration file is all zeros.

Table 3.14 Bit Definitions for Channel Configuration Words

Define

To Select

Make these bit settings
15 14 13 12 11 10 9 8 7-4

3 2 1 0

Input Filter
Selection/
-3 dB
Frequency

60 Hz

0 0 0 0

50 Hz

0 0 0 1

10 Hz

0 0 1 0

250 Hz

0 0 1 1

500 Hz

0 1 0 0

Enable
Interrupt

Enable

1

Disable

0

Process
Alarm
Latch

Enable

1

Disable

0

Enable
Process
Alarms

Enable

1

Disable

0

Enable
Channel

Enable

1

Disable

0

Table 3.15 Bit Definitions for Input Range and Input Data

Define

Indicate this

These bit settings
15-11

10

9

8

7-4

3

2

1

0

Input
Range
Select

-10 to +10V dc

0

0

0

0

0 to 5V dc

0

0

0

1

0 to 10V dc

0

0

1

0

4 to 20 mA

0

0

1

1

1 to 5V dc

0

1

0

0

0 to 20 mA

0

1

0

1

Input
Data
Format
Select

Raw/Proportional
Counts

0

0

0

Engineering Units

0

0

1

Scaled for PID

0

1

0

Percent Range

0

1

1

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