
38 Publication 1769-UM018A-EN-P - October 2008
Chapter 3 Module Data, Status, and Channel Configuration
Channel Configuration
Each channel is independently configured via a group of six
consecutive words in the Configuration Data file. The first two words
of the group consist of bit fields, the settings of which determine how
the channel operates. See the tables below and the descriptions that
follow for valid configuration settings and their meanings. The default
bit status of the configuration file is all zeros.
Bit Definitions for Channel Configuration Words
Define To Choose Make these bit settings
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Input Filter Selection 60 Hz
0000
50 Hz
0001
16 Hz
0010
315 Hz
0011
1365 Hz
0100
Enable Interrupt
(1)
(2)
(EI)
Enable
1
Disable 0
Process Alarm Latch
(2)
(AL)
Enable
1
Disable 0
Enable Process Alarms
(EA)
Enable 1
Disable 0
Enable Channel (EC) Enable 1
Disable 0
(1) Alarm interrupts are not supported by all bus masters. Check your controller’s user manual to determine if expansion I/O interrupts are supported.
(2) Do not set this bit to 1 unless the Enable Process Alarms (EA) bit is also set to 1 for the same channel.
1769-IF16C Module: Bit Definitions for Input Range and Input Data Configuration Words
Define To Choose Make these bit settings
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Input Range
Select
4…20 mA
0000
0…20 mA
0001
Input Data
Format Select
Proportional Counts
000
Engineering Units 001
Scaled for PID 010
Percent Range 011
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