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CS1W-B7A

CS-series B7A Interface Unit

CS1W-B7A

It transmits 16 points of I/O signals per word with a pair of cables. Easy and minimized wiring effort.

B7A Communications Specifications

Item Specifications
Transmission method One-way time-sharing multiplex transmissions
Transmission delay
(communications delay
on transmission path)
High-speed 3 ms typical, 5 ms max.
Standard 19.2 ms typical, 31 ms max.
Transmission points CS1W-B7A12 32 inputs (2 ports)
CS1W-B7A02 32 outputs (2 ports)
CS1W-B7A21 16 inputs (1 port), 16 outputs (1 port)
CS1W-B7A22 32 inputs (2 ports), 32 outputs (2 ports)
External power supply
voltage *1
12 to 24 V DC (allowable voltage range: 10.8 to 26.4 V)
External supply
current *2
CS1W-B7A12 20 mA min.
CS1W-B7A02 60 mA min.
CS1W-B7A21 30 mA min.
CS1W-B7A22 60 mA min.
Minimum input time
*3
High-speed 16 ms
Standard 2.4 ms
Transmission distance High-speed Power supply on one side
(common power supply)
10 m max.
50 m max. (with shielded cable)
Power supply on both sides
(separate power supplies)
10 m max.
100 m max. (with shielded cable)
Standard Power supply on one side
(common power supply)
100 m max.
Power supply on both sides
(separate power supplies)
500 m max.
Cables VCTF, 0.75 mm2, 3 conductors (power supply on one side (common power supply))
VCTF, 0.75 mm2, 2 conductors (power supply on both sides (separate power supplies))
Shielded cable, 0.75 mm2, 3 conductors (power supply on one side (common power supply))
Shielded cable, 0.75 mm2, 2 conductors (power supply on both sides (separate power supplies))

*1. Use a SELV power supply with overcurrent protection. A SELV power supply refers to a power supply with double or
       reinforced insulation between input and output and with an output voltage of 30 V rms with a 42.4-V peak or an
       output voltage of 60 VDC max. We recommend OMRON S8[][]-series Power Supply Units for the external power
       supplies.
*2. The capacity of the external supply current does not include the capacity required by the B7A Link Terminal.
*3. The minimum input time is the minimum time required by the B7A Interface Unit to read the input signals from the
       CPU Unit.
Note: 1. When separate power supplies are used, the B7A Interface Unit and B7A Link Terminal are supplied by separate
              external power supplies.
           2. When a common power supply is used, the B7A Interface Unit and B7A Link Terminal are supplied by the same
                external power supply.

Specifications

Model CS1W-B7A12 CS1W-B7A02 CS1W-B7A21 CS1W-B7A22
Applicable PLC CS-series PLCs
Unit type CS1 Basic I/O Unit
I/O
points
Input 32 inputs --- 16 inputs 32 inputs
Output --- 32 outputs 16 outputs 32 outputs
Transmission
distance
Normal: 500m max. when the interface unit and the link terminal units have separate external power supplies,
Normal: 100m max. when the interface unit and the link terminal units use a common external power supply,
High speed: 100m max. with shielded cables, 10m max. with unshielded cables, when the interface unit and the link terminal units have separate external power supplies,
High speed: 50m max. with shielded cables, 10m max. with unshielded cables, when the interface unit and the link terminal units use a common external power supply,
Transmission
delay
Normal: 19.2ms (typ.), 31ms max.
Short 3ms (typ.), 5ms max. * 1
Weight 230g max. 240g max.
Power supply
voltage from
external
source *2
12 to 24VDC ±10%,
20mA min.
12 to 24VDC ±10%,
60mA min.
12 to 24VDC ±10%,
30mA min.
12 to 24VDC ±10%,
60mA min.
I/O memory
allocation
Each Unit is allocated 4 words in the I/O Area (which starts at CIO 0000).
The words are allocated according to the mounting position of the Unit.
2 words (32 points). 4 words (64 points).
Current
consumption
5 V DC: 90 mA max. (supplied from Power Supply Unit)

*1. The I/O delay time is selectable by the selector switch between normal and short.
*2. The value does not include the power supplied to B7A link terminal units.