POINT I/O Input Modules 11
Publication 1734-IN051H-EN-E - April 2013
Communicate with Your Module
I/O messages are sent to (consumed) and received from (produced) the POINT I/O
modules. These messages are mapped into the processor’s memory.
This POINT I/O input module produces 1 Byte of input data (scanner Rx). It does not
consume I/O data (scanner Tx).
Default Data Map for 1734-IB2
Message size: 1 Byte
76543210
Produces (Rx) I1 I0
Consumes (Tx) No consumed data
Where: I1 = Channel 1, I0 = Channel 0,
0 = Off, 1 = On
Default Data Map for 1734-IB4
Message size: 1 Byte
76543210
Produces (Rx) I3 I2 I1 I0
Consumes (Tx) No consumed data
Where: I3 = Channel 3, I2 = Channel 2, I1 = Channel 1, I0 = Channel 0,
0 = Off, 1 = On
Default Data Map for 1734-IB8
Message size: 1 Byte
76543210
Produces (Rx) I7 I6 I5 I4 I3 I2 I1 I0
Consumes (Tx) No consumed data
Where: I7 = Channel 7, I6 = Channel 6, I5 = Channel 5, I4 = Channel 4,
I3 = Channel 3, I2 = Channel 2, I1 = Channel 1, I0 = Channel 0,
0 = Off, 1 = On
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