Allen-Bradley 1734-OB2, User Manual, Page: 99 / 221

Rockwell Automation Publication 1734-UM001E-EN-P - July 2013
POINT I/O Module Data 101
Relay Output Modules
The relay output modules consist of 1734-OW2 and 1734-OW4 2-relay output
modules and 1734-OX2 4-relay output modules. Features of the 1734-OW2 and
1734-OW4 relay modules include the following:
• Type A Normally Open relays
• Sink or source a current with respect to power or return
• Contact outputs isolated from each other
• Each output rated 5…240V dc/V rms at 2 A (current is load dependant)
• Autobaud (will match baud of existing devices on the network)
• Sequential auto addressing
Features of the 1734-OX2 relay modules include the following:
• Two Form C isolated (normally open; normally closed)
electromechanical relays
•
Sink or source a current with respect to power or return
•
Contact outputs isolated from each other
•
Each output rated 5…240V dc/V rms at 2 A (current is load dependant)
•
Autobaud (will match baud of existing devices on the network)
•
Sequential auto addressing
I/O messages are sent to (consumed) and received from (produced) these
POINT I/O modules. These messages are mapped into the processor memory.
Default Data Map for 1734-OA4 Modules
7 6 5 4 3 2 1 0
Produces (scanner Rx) No produced data
Consumes (scanner Tx) Not used Ch
3 Ch 2 Ch
1
Ch
0 Channel
state
Where: 0 = Off, 1 = On
Default Data Map for the 1734-OW2 Output Module
Message Size: 1 Byte
7 6 5 4 3 2 1 0
Produces
(scanner Rx) No produced data
Consumes
(scanner Tx) Not used Ch
1 Ch
0 Channel state
Where: 0 = off, 1 = on