Safety-related digital inputs – Rockwell Automation 1753-IB8XOB8 GuardPLC 8-Digital Inputs and 8-Digital Outputs Module Installation Instructions User Manual
Page 9
GuardPLC 8-Digital Inputs and 8-Digital Outputs Module 9
Publication 1753-IN010A-EN-P - October 2005
Safety-Related Digital Inputs
The module has 8 digital inputs whose status is indicated via LED indicators. Refer
to page 4 for location of digital inputs and LED indicators.
LS+ is a voltage source that provides 24V dc for a group of four dry contact inputs.
There are two groups on the module.
If devices require 24V dc to operate and use the same power source as the
GuardPLC, then wire the outputs of the device directly to inputs on the GuardPLC.
PO PULSE TEST
L-
L-
L+ L+
1
LS+
LS+
L-
2 3 4
5
L-
DI
D1
6 7 8
19 20 21 22 23 24
1
L-
L-
2 3 4+
7 8 9 10 11 12
25 26 27 28 29 30
24V DC
RUN
24 V DC
PROG
ERROR
FAULT
FORCE
BL
OSL
GuardPLC Ethernet
10/100 BaseT
1
( )
2
( )
1753-IB8XOB8
8 DC Inputs
8 DC Outputs
5
L-
L-
6 7 8+
13 14 15 16 17 18
1
L-
S+
2 4- 8-
1 2 3 4 5 6
DO-
DO
(2A)
(2A)
DO
L-
L-
L+
L+
24V DC
24V dc
Power
Supply
COM
+
19
20 21 22 23 24
1
LS+-
L-
DI
2 3 4
PO PULSE TEST
L-
L-
L+ L+
1
LS+
LS+
L-
2 3 4
5
L-
DI
D1
6 7 8
19 20 21 22 23 24
1
L-
L-
2 3 4+
7 8 9 10 11 12
25 26 27 28 29 30
24V DC
RUN
24 V DC
PROG
ERROR
FAULT
FORCE
BL
OSL
GuardPLC Ethernet
10/100 BaseT
1
( )
2
( )
1753-IB8XOB8
8 DC Inputs
8 DC Outputs
5
L-
L-
6 7 8+
13 14 15 16 17 18
1
L-
S+
2 4- 8-
1 2 3 4 5 6
DO-
DO
(2A)
(2A)
DO
L-
L-
L+
L+
24V DC
24V dc
Power
Supply
COM
+
19
20 21 22 23 24
1
LS+-
L-
DI
2 3 4
COM
+
Light Curtain
(or any Safety Input Device)