Rockwell Automation 1738-IE2VM12 ArmorPoint 24V dc Analog Input Modules, Series A - Manual (Page 8)

Publication 1738-IN003B-EN-E - June 2005
8 ArmorPoint 24V dc Analog Input Modules, Series A
Communicate with
Your Module
I/O messages are sent to (consumed) and received from (produced)
the ArmorPoint I/O modules. These messages are mapped into the
processor’s memory. These ArmorPoint I/O analog input modules
produce 6 bytes of input data (scanner Rx) and fault status data. They
do not consume I/O data (scanner Tx).
Default Data Map for the ArmorPoint Analog Input Modules
1738-IE2CM12 and 1738-IE2VM12
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
O
R U
R H
H
A L
L
A
H
A L
A C
M C
F
O
R
U
R H
H
A L
L
A
H
A L
A C
M C
F
Consumes
(scanner Tx) No consumed data
Where: CF = Channel Fault Status, 0 = no error, 1 = fault
CM = Calibration Mode; 0 = normal, 1 = calibration mode
LA = Low Alarm; 0 = no error, 1 = fault
HA = High Alarm; 0 = no error, 1 = fault
LLA = Low/Low Alarm; 0 = no error, 1 = fault
HHA = High/High Alarm; 0 = no error, 1 = fault
UR = Underrange; 0 = no error; 1 = fault
OR = Overrange; 0 = no error; 1 = fault