Rockwell Automation 1797-IRT8 FLEX Ex Thermocouple/RTD/mV Input Module User Manual - Manual (Page 42)

Publication 1797-6.5.2 - February 2001
4-4 Input, Status, Output and Configuration Files for the Thermocouple/RTD/mV Module on the ControlNet Network
For example, a 16 point discrete input module will have up to 2 read
words and 1 write word.
Check the I/O map for the module for the exact mapping.
I/O Structure Output data is received by the adapter in the order of the installed I/O
modules. The output data for slot 0 is received first, followed by the
output data for slot 1, and so on up to slot 7.
The first word of input data sent by the adapter is the Adapter status
word. This is followed by the input data from each slot, in the order
of the installed I/O modules. The input data from slot 0 is first after
the status word, followed by input data from slot 1, and so on up to
slot 7.
ControlNet Image
Input Size
Module Image
Input
Faults
1 Word
Configuration
Not used
Delay
Time
41627
Delay
Time
1 Word
1 Word
Status Size
ControlNet Adapter
Read Data
Adapter Status
Slot 0 Input Data
Slot 1 Input Data
Slot 7 Input Data
Slot 0 Output Data
Slot 1 Output Data
Slot 7 Input Data
Write
Read I/O
Module
Slot 0
I/O
Module
Slot 1
I/O
Module
Slot 7
Network READ
Network WRITE
41628