Rockwell Automation 1734-OB2_OB4_OB8, Series C POINT I/O Output Module Installation Instructions - Manual (Page 11)

POINT I/O Output Module 11
Publication 1734-IN018C-EN-E - April 2013
Communicate with the 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 consumes 1 byte of I/O data (scanner Tx).
Default Data Map for the 1734-OB2 Output Module
Message size: 1 Byte
7 6 5 4 3 2 1 0
Consumes (scanner Tx) Not used Ch1 Ch0 Channel state
Where: 0 = Off, 1 = On
Default Data Map for 1734-OB4
Message size: 1 Byte
7 6 5 4 3 2 1 0
Consumes (scanner Tx) Not used Ch3 Ch2 Ch1 Ch0 Channel state
Where: 0 = Off, 1 = On
Default Data Map for 1734-OB8
Message size: 1 Byte
7 6 5 4 3 2 1 0
Consumes (scanner Tx) Ch7 Ch6 Ch5 Ch4 Ch3 Ch2 Ch1 Ch0 Channel state
Where: 0 = Off, 1 = On