Communicate With The Module; Interpret Status Indicators - Allen-Bradley D Series Installation Instructions Manual

POINT I/O Input Modules Installation Instructions

Communicate with the Module

POINT I/O modules send (consume) and receive (produce) I/O data (messages). You map this data onto the processor memory.
These modules produce 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
7
Produces (Rx)
Consumes (Tx) No consumed data
I1 = Channel 1, I0 = Channel 0,
Where:
0 = Off, 1 = On
Default Data Map for 1734-IB4, 1734-IB4K
Message size: 1 Byte
7
Produces (Rx)
Consumes (Tx) No consumed data
I3 = Channel 3, I2 = Channel 2, I1 = Channel 1, I0 = Channel 0,
Where:
0 = Off, 1 = On
Default Data Map for 1734-IB8, 1734-IB8K
Message size: 1 Byte
7
Produces (Rx) I7
Consumes (Tx) No consumed data
I7 = Channel 7, I6 = Channel 6, I5 = Channel 5, I4 = Channel 4,
Where: I3 = Channel 3, I2 = Channel 2, I1 = Channel 1, I0 = Channel 0,
0 = Off, 1 = On

Interpret Status Indicators

See the following diagram and table for information on how to interpret the status indicators:
Status of input 0
Status of input 1
12
6 5
6 5
6 5
I6 I5
1734-IB2
Module
Module status
Status
Network
Network status
Status
NODE:
24VDC
Sink
Input
Status of input 0
0
Status of input 1
1
Status of input 2
Status of input 3
1734
IB2
Rockwell Automation Publication 1734-IN051L-EN-E - September 2022
4 3 2
4 3 2
I3 I2
4 3 2
I4 I3 I2
1734-IB4,
1734-IB4K
Module
Status
Network
Status
NODE:
24VDC
Sink
Input
Status of inputs 0 & 4
0
1 Status of inputs 1 & 5
Status of inputs 2 & 6
2
Status of inputs 3 & 7
3
1734
IB4
1 0
I1 I0
1 0
I1 I0
1 0
I1 I0
1734-IB8,
1734-IB8K
Module
Status
Network
Status
NODE:
24VDC
Sink
Input
0
4
1
5
2
6
3
7
1734
IB8