Omron SYSMAC C200HS Installation Manual page 191

Specifications
! Caution Ensure that the external variable resistor connectors are open when using the internal variable
resistor.
Standard B7A Interface Unit C200H-B7AI1/B7AO1
The Standard B7A Interface Unit used with the B7A Link Terminal allows the transmission and reception of
16-point I/O data over two wires.
The following Standard B7A Interface Unit and B7A Link Terminal models are available.
B7A Interface Unit
16-point input: C200H-B7AI1
16-point output: C200H-B7AO1
Mount the B7A Interface Unit to the C200H-BCjj1-V1 or C200H-BCjj1-V2 Backplane.
Note If the B7A Interface Unit is connected to the C200HS-CPU03/CPU23-E/CPU33-E or C200H-PS211, supply
24 VDC from an independent power supply to the B7A Interface Unit or use a transformer to separate the
power supply line to the B7A Interface Unit from the power supply lines to the CPU and I/O Power Supply
Unit.
External variable
resistor connector
B7A Link Terminals
B7A-T6j1 (Screw terminal models)
B7A-T6D2 (Modular models)
B7A-R6jj1 (Screw terminal models)
B7A-R6A52 (Modular models)
12 to 24 VDC
External variable
resistor
I/O indicator
ERR indicator
Connection terminals
Connection terminals for the B7A Link Terminal:
Connect this terminal to the SIG terminal of the
B7A Link Terminal.
Connect this terminal to the negative power ter-
minal of the B7A Link Terminal.
Supply 12 to 24 VDC.
Appendix B
177