Rockwell Automation 1791-XXXX Discrete I/O AC and DC Block I/O Input and Output Modules - Manual (Page 41)

Installing Block I/O
Chapter 3
3-22
Figure 3.16
Input/Output Wiring Connections for the 1791Ć8BC Series B
RIO
1
30
PLC and SLC
24V dc
+ Ć
24V dc
+ Ć
24V dc
+ Ć
GND
BLU
CLR
in 00
in 01
in 02
in 03
in 04
in 05
in 06
in 07
RET
in
NOT
USED
SHD
Vdc
out
out 00
out 02
out 03
out 04
out 05
out 06
out 07
Vdc
out
NOT
USED
RET
out
out 01
+24
RET
+24
RET
in
NOT
USED
RET in connections are internally connected together.
Vdc out connections must be externally connected together to accommodate amperage rating.
Output fusing is recommended. Refer to Table 2.B on page 2Ć8.
NOTE:
1
2
29
30
Connections
1791Ć8BC Series B
Connections
Designation Description Terminal No.
Power
+24 +24V dc Power 1
Power
Connections RET +24 dc Return 3
GND Chassis ground 2 1
Remote I/O
BLU Blue wire Ć RIO 6
Remote I/O
Connections CLR Clear wire Ć RIO 8
SHD Shield Ć RIO 7
I/O Connections
Input
in 00 thru in 07 Input 00 thru 07 16, 18, 20, 22, 24, 26, 28, 30
Input
RET in dc input Return 12, 14 2
Vdc out dc output Supply 11, 13 3
Output RET out dc output Return 9 p
out 00 thru out 07 Output 00 thru 07 15, 17, 19, 21, 23, 25, 27, 29
Not used
For internal test only; not
for customer use.
4, 5, 10
1 Connect chassis ground to equipment grounding stud. These are not internally connected.
2 Terminals 12 and 14 are internally connected.
3 Terminals 11 and 13 must be externally connected by customer to accommodate amperage rating.