Rockwell Automation 1738-IT2IM12 ArmorPoint RTD and Thermocouple Modules, Series A User Manual
Page 9
ArmorPOINT RTD and Thermocouple Input Modules 9
Publication 1738-IN005B-EN-E - January 2013
Default Data Map – 1738-IT2IM12
Message size: 6 Bytes
15 14 13
12 11 10 09 08 07 06 05
04 03 02 01 00
Produces
(scanner Rx)
Input channel 0 high byte
Input channel 0 low byte
Input channel 1 high byte
Input channel 1 low byte
Status byte for channel 1
Status byte for channel 0
OR
UR
HHA LLA HA
LA
CM CF
OR
UR
HHA LLA HA
LA
CM CF
OR
UR
Cold junction temperature
(Selectable channel 0, channel 1, or average of both channels 0 and 1)
Consumes
(scanner Tx)
No consumed data
Where:
OR = Overrange; 0 = No error, 1 = Fault
UR = Underrange; 0 = No error, 1 = Fault
HHA = High/High Alarm; 0 = No error, 1 = Fault
LLA = Low/Low Alarm; 0 = No error, 1 = Fault
HA = High Alarm; 0 = No error, 1 = Fault
LA = Low Alarm; 0 = No error, 1 = Fault
CM = Calibration Mode; 0 = Normal, 1 = Calibration mode
CF = Channel Fault Status; 0 = No error, 1 = Fault