Appendix BSpecifications
156
Group-2 B7A Interface Units (C200H-B7Ajj)
A Group-2 B7A Interface Unit used with two or four B7A Link Terminals allows the transmission and reception of
32-point or 64-point I/O data over two-conductor cables.
Group-2 B7A Interface Unit
C200H-
CPU21-E/22-E/23-E/31-E
CPU Unit
C200H
Sensor
Switch
Lamps and other loads
Transmission distance:
500 m max.
Input B7A Link Terminal
Output B7A Link Terminal
Group-2 B7A Interface Units can be mounted to a CPU Rack containing a C200H-CPU21-E/22-E/23-E/31-E CPU
Unit or an I/O Expansion Rack for one of these CPU Units. They cannot be mounted to Slave Racks or to Racks
controlled by any other CPU Units.
The words allocated to Group-2 B7A Interface Units are determined by I/O number set on the Units. Units with 32
I/O points are allocated two words; Units with 64 I/O points are allocated four words.
Refer to the B7A Link Terminals Datasheet for more information on B7A Link Terminals.
Models
The following Group-2 B7A Interface Units are available.
B7A Interface Unit Inputs Outputs
C200H-B7A12 32 points None
C200H-B7A02 None 32 points
C200H-B7A21 16 points 16 points
C200H-B7A22 32 points 32 points
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