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Appendix BSpecifications
100
Caution Ensure that the external variable resistor connectors are open when using the internal variable
resistor.
External variable
resistor connector
External variable
resistor
B7A Interface Unit C200H-B7Aj1 (Basic I/O Unit Type)
The
B7A Interface Unit used with the B7A Link T
erminal allows the transmission and reception of 16-point I/O data
over two wires.
The following B7A Interface Unit and B7A Link Terminal models are available.
B7A Interface Unit B7A Link Terminals
16-point input: C200H-B7AI1 B7A-T6j1 (Screw terminal models)
B7A-T6D2 (Modular models)
16-point output: C200H-B7AO1 B7A-R6jj1 (Screw terminal models)
B7A-R6A52 (Modular models)
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 C200H-CPU03-E or C200H-PS21
1, 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.
12
to 24 VDC
I/O indicator
Connection terminals for the B7A Link T
erminal:
Connect this terminal to the SIG terminal of the
B7A Link T
erminal.
Connect this terminal to the negative power ter
-
minal of the B7A Link T
erminal.
Supply 12 to 24 VDC.
ERR indicator
Connection terminals
I/O Indicator
Indicates the ON or OFF status of input from the B7A Link Terminal or the ON
and OFF status of output to the B7A Link Terminal.
ERR Indicator
Incorporated
by the B7AI1 and lit when the B7AI1’
s data transmission or recep
-
tion is abnormal.
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