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10
GuardPLC™ 1600 Controllers
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.
Devices with their own dedicated power supply can also be connected. Connect
the reference pole of the external power supply to the L- reference pole of the
input.
Connection of Devices with Dedicated Power Supplies
The safe state of an input is indicated by a 0 signal being passed to the user
program logic. If the test routines detect a fault in the digital inputs, a 0-signal is
processed in the user program for the defective channel. When a fault occurs, the
inputs are switched off (0).
Publication 1753-IN001B-EN-P - March 2004
COM
24V dc
Power
+
Supply
3
(—)
(—)
4
L-
L-
L+ L+
24V DC
L-
L-
L+ L+
RS-485
MODBUS
PROFIBUS
24V DC
COMM1
COMM2
COMM3
GuardPLC Ethernet
10/100 BaseT
3
(—)
(—)
4
Connection of Voltage Supply to
Input Device
3
(—)
(—)
4
L-
L-
L+ L+
24V DC
L-
L-
L+ L+
RS-485
MODBUS
24V DC
COMM1
COMM2
GuardPLC Ethernet
10/100 BaseT
3
(—)
(—)
4
1
2
3
4
5
6
7
8
9
10 11 12
1
2
3
4
5
6
7
8
9
10
11 12
DO
L-
1
2
3 4
L-
DO
L-
5
6
7 8
L-
(2A)
(2A)
24 V DC
RUN
ERROR
PROG
FORCE
D1
FAULT
LS+-
1
2 3 4
L-
OSL
BL
D1
D1
D1
13 14 15 16 17 18
LS+-
1
2 3 4
L-
LS+
5
6 7 8
L-
LS+
9
10 11 12
L-
13 14 15 16 17 18
19 20 21 22 23 24
25 26 27 28 29 30
13 14 15 16 23 24
13 14 15 16 23 24
19 20 21 22 23 24
25 26 27 28 29 30
COM
+
Light Curtain
(or any Safety Input)
COM
24V dc
Power
+
Supply
1
2
3
4
5
6
1
2
3
4
5
6
DO
L-
1
2
3 4
L-
(2A)
PROFIBUS
24 V DC
COMM3
RUN
ERROR
PROG
FORCE
D1
FAULT
LS+-
1
2 3 4
OSL
BL
D1
13 14 15 16 17 18
LS+-
1
2 3 4
L-
13 14 15 16 17 18
13 14 15 16 23 24
13 14 15 16 23 24
Light Curtain
(or any Safety Input)
1753-L28BBBM
20 DC Inputs
8 DC Outputs
D1
D1
LS+
13
14 15 16
L-
LS+
17
18 19 20
L-
31 32 33 34 35 36
37 38 39 40 41 42
31 32 33 34 35 36
37 38 39 40 41 42
7
8
9
10 11 12
7
8
9
10
11 12
DO
L-
5
6
7 8
L-
(2A)
1753-L28BBBM
L-
20 DC Inputs
8 DC Outputs
D1
D1
D1
D1
LS+
5
6 7 8
L-
LS+
9
10 11 12
L-
LS+
13
14 15 16
L-
LS+
17
18 19 20
19 20 21 22 23 24
25 26 27 28 29 30
31 32 33 34 35 36
37 38 39 40 41 42
19 20 21 22 23 24
25 26 27 28 29 30
31 32 33 34 35 36
37 38 39 40 41 42
COM
COM
24V dc
Power
+
+
Supply
L-