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6 Documentation Number 232OPSDA1397 Manual
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5105
Figure 2.1: Current Loop Channel Connections (A/D 0)
NOTE: When using the 4-20mA Current Loop Input with the setup
shown in Figure 2.1, A/D 1-5 cannot be used and should be
connected to the terminal block labeled GND.
Figure 2.2: Required Connections for A/D 1- A/D 5
A
/
D
4
232OPSDA
RS-232 Port
4-20mA Current
4-20mA
Current Loop
Transmitter
Loop
Return
Output
T
B
0
T
B
1
T
B
2
T
B
3
T
B
4
A
/
D
1
A
/
D
2
A
/
D
3
A
/
D
0
Current Loop
Out
Receiver
Input
4-20mA
T
B
5
G
N
D
A
/
D
5
T
B
8
0 to 5VDC Input
0 to 5VDC Input
0 to 5VDC Input
0 to 5VDC Input
0 to 10VDC Input
GND
A/D 1
TB 1
GND
A/D 0
A/D 2
A/D 3
A/D 4
A/D 5
2
3
2
O
P
S
D
A
TB 8
TB 2
TB 3
TB 4
TB 5
TB 0