B7A Communications Specifications - Omron CJ - 08-2008 Operation Manual

B7A Interface Unit
3-7-4

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 CJ1W-B7A14
CJ1W-B7A04
CJ1W-B7A22
External power 12 to 24 V DC (allowable voltage range: 10.8 to 26.4 V)
supply voltage
(See note 3.)
External supply CJ1W-B7A14
current
CJ1W-B7A04
(See note 4.)
CJ1W-B7A22
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
Note
198
19.2 ms typical, 31 ms max.
64 inputs (4 ports)
64 outputs (4 ports)
32 inputs (2 ports), 32 outputs (2 ports)
40 mA min.
150 mA min.
80 mA min.
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))
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. We recommend OMRON S8@@-series Power Supply Units for the exter-
nal 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 3-7