Rockwell Automation 1791-XXXX ANALOG BLOCK I/O - Manual (Page 26)

Installing Block I/O
Chapter 2
2-8
Figure 2.9
Wiring Connections for the 120V ac Analog Block with Current Input and
BlockĆSupplied Loop Power
RIO
1
30
L2/N L1
L1
GND
N
NOT
USED NOT
USED
BLU
SHD
in V0
CLR
in I0
in V1
+24
Vdc
RET
in0
GND
in0
RET
in1
GND
in1
RET
in2
GND
in2
RET
in3
GND
in3
RET
out0
RET
out1
in I1
in V2
in I2
in V3
in I3
out0
out1
NOT
USED
User Analog
Input Device
i
i
Loop Powered
Current Input
User Analog
Output Device
+
-
Output
ATTENTION: The 249 ohm
input current shunt is rated
at 0.25 Watts. Do not
exceed this rating.
Analog signals must be within the
10V common mode voltage range
which is referenced to the analog
input common (GND). Typically, this
is accomplished by connecting to
user ground. If an input channel
floats outside of this range, invalid
input readings will result.
+24V dc loop power supplied
at terminal 25 on block
Figure 2.10
Wiring Connections for the 24V dc Analog Block Module with Current
Input and BlockĆSupplied Loop Power
RIO
1
30
GND
NOT
USED NOT
USED
BLU
SHD
in V0
CLR
in I0
in V1
+24
Vdc
RET
in0
GND
in0
RET
in1
GND
in1
RET
in2
GND
in2
RET
in3
GND
in3
RET
out0
RET
out1
in I1
in V2
in I2
in V3
in I3
out0
out1
NOT
USED
User Analog
Input Device
i
i
Loop Powered
Current Input
User Analog
Output Device
+
-
Output
ATTENTION: The 249 ohm
input current shunt is rated
at 0.25 Watts. Do not
exceed this rating.
+24
RET
+24
+24V dc
Supply
+ -
+24V dc loop power supplied
at terminal 25 on block
Analog signals must be within the
10V common mode voltage range
which is referenced to the analog
input common (GND). Typically, this
is accomplished by connecting to
user ground. If an input channel
floats outside of this range, invalid
input readings will result.