Omron SYSMAC CS Series Operation Manual page 280

B7A Interface Units
B7A Communications Specifications
Item
Transmission One-way time-sharing multiplex transmissions
method
Transmission delay High-speed 3 ms typical, 5 ms max.
(communications
Standard
delay on
transmission path)
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 12 to 24 V DC (allowable voltage range: 10.8 to 26.4 V)
supply voltage
(See note 3.)
External supply CS1W-B7A12 20 mA min.
current
CS1W-B7A02 60 mA min.
(See note 4.)
CS1W-B7A21 30 mA min.
CS1W-B7A22 60 mA min.
Minimum input time High-speed 16 ms
(See note 5.)
Standard
Transmission High-speed Power supply on one side
distance
Standard
Cables
VCTF, 0.75 mm
VCTF, 0.75 mm
Shielded cable, 0.75 mm
Shielded cable, 0.75 mm
242
19.2 ms typical, 31 ms max.
2.4 ms
(common power supply)
Power supply on both sides
(separate power supplies)
Power supply on one side
(common power supply)
Power supply on both sides
(separate power supplies)
2
, 3 conductors (power supply on one side (common power supply))
2
, 2 conductors (power supply on both sides (separate power supplies))
2
, 3 conductors (power supply on one side (common power supply))
2
, 2 conductors (power supply on both sides (separate power supplies))
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.
3. Use a SELV power supply with overcurrent protection. A SELV power sup-
ply 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@@-se-
ries Power Supply Units for the external power supplies.
4. The capacity of the external supply current does not include the capacity
required by the B7A Link Terminal.
5. The minimum input time is the minimum time required by the B7A Interface
Unit to read the input signals from the CPU Unit.
Specifications
10 m max.
50 m max. (with shielded cable)
10 m max.
100 m max. (with shielded cable)
100 m max.
500 m max.
Section 3-8