When configured as complementary I/O:
PLC-2 can scan racks 01–07
PLC-5/11 can scan rack 03
PLC-5/20, PLC-5/30, PLC-5/40, PLC-5/60
can scan racks 01–07
NOTE: Remote rack numbers which can
have a complementary rack are rack
numbers 01 thru 07 only.
Installation Instructions
Block I/O
Cat. No. 1791-0A32 Series B
8
SW1 Switch Position
PLC–3
Rack
Number
PLC–5/250
Rack
Number
PLC–5
Rack
Number
PLC–2
Rack
Number
1771-SN
Rack
Number
1747-SN
Rack
Number
3
4
5
6
7
8
PLC–3
Rack
Number
PLC–5/250
Rack
Number
PLC–5
Rack
Number
PLC–2
Rack
Number
1771-SN
Rack
Number
1747-SN
Rack
Number
Rack 51
1
0
1
0
0
1
Rack 52
1
0
1
0
1
0
Rack 53
1
0
1
0
1
1
Rack 54
1
0
1
1
0
0
Rack 55
1
0
1
1
0
1
Rack 56
1
0
1
1
1
0
Rack 57
1
0
1
1
1
1
Rack 60
1
1
0
0
0
0
Rack 61
1
1
0
0
0
1
Rack 62
1
1
0
0
1
0
Rack 63
1
1
0
0
1
1
Rack 64
1
1
0
1
0
0
Rack 65
1
1
0
1
0
1
Rack 66
1
1
0
1
1
0
Rack 67
1
1
0
1
1
1
Rack 70
1
1
1
0
0
0
Rack 71
1
1
1
0
0
1
Rack 72
1
1
1
0
1
0
Rack 73
1
1
1
0
1
1
Rack 74
1
1
1
1
0
0
Rack 75
1
1
1
1
0
1
Rack 76
1
1
1
1
1
0
Not Valid
1
1
1
1
1
1
Rack address 77 is an illegal configuration.
PLC-5/11 processors can scan rack 03.
PLC-5/15 and PLC-5/20 processors can scan racks 01–03.
PLC-5/25 and PLC-5/30 processors can scan racks 01–07.
PLC-5/40 and PLC-5/40L processors can scan racks 01–17.
PLC-5/60 and PLC-5/60L processors can scan racks 01–27.
PLC-5/250 processors can scan racks 00–37.
Table C
PLC–2 and PLC–5 With Complementary I/O
PLC–2
Ra
PLC–5
Ra
SW1 Switch Position
Rack
Number
Rack
Number
8
7
6
5
4
3
Rack 1
Not Valid
0
0
1
0
0
0
Rack 2
Rack 1
0
0
1
0
0
1
Rack 3
Rack 2
0
0
1
0
1
0
Rack 4
Rack 3
0
0
1
0
1
1
Rack 5
Rack 4
0
0
1
1
0
0
Rack 6
Rack 5
0
0
1
1
0
1
Rack 7
Rack 6
0
0
1
1
1
0
Rack 7
0
0
1
1
1
1
