Communicate With Your Module - Allen-Bradley 1734-OE4C Installation Instructions Manual

Communicate with Your Module

I/O messages are sent to (consumed) and received from (produced) the POINT I/O
modules. These messages are mapped onto the processor's memory.
This POINT I/O output module produces 4 bytes of input data (scanner Rx) (fault
status). It consumes 8 bytes of Output data (scanner Tx).
Default Data Map for the 1734-OE4C Analog Output Module
Message size: 4 Bytes
15 14
Produces High Byte - Channel 1 Status
(scanner Rx)
Not used
High Byte - Channel 3 Status
Not used
Where: CF = Channel Fault status; 0 = no error, 1 = fault
CM = Calibration Mode; 0 = Normal, 1 = calibration mode
LCA = Low Clamp Alarm; 0 = no error, 1 = fault
HCA = High Clamp Alarm; 0 = no error, 1 = fault
Message size: 8 Bytes
15
Consumes Output Channel 0 High Byte
(scanner Tx)
Output Channel 1 High Byte
Output Channel 2 High Byte
Output Channel 3 High Byte
POINT I/O 4 Channel Analog Current Output Module
13 12 11 10
HCA LCA CM CF
HCA LCA CM CF
14 13 12 11
09 08 07 06
High Byte - Channel 0 Status
Not used
High Byte - Channel 2 Status
Not used
10 09 08 07
Output Channel 0 Low Byte
Output Channel 1 Low Byte
Output Channel 2 Low Byte
Output Channel 3 Low Byte
Publication 1734-IN034C-EN-E - August 2016
05 04 03 02
HCA LCA CM CF
HCA LCA CM CF
06 05 04 03
15
01 00
02 01 00