CJ1W-B7A

CJ-series B7A Interface Unit

CJ1W-B7A

It transmits 16 points of I/O signals per word with a pair of cables. Easy and minimized wiring effort. This unit is available for CJ/NJ controller.

Item list of CJ1W-B7A

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last update: September 24, 2012

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	CJ1W-B7A14	64 inputs (4 ports)
	CJ1W-B7A04	64 outputs (4 ports)
	CJ1W-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	CJ1W-B7A14	40 mA min.
	CJ1W-B7A04	150 mA min.
	CJ1W-B7A22	80 mA min.
Minimum input time *3	High-speed	16 ms
Minimum input time *3	Standard	2.4 ms
Transmission distance	High-speed	Power supply on one side (common power supply)	10 m max.
		Power supply on one side (common power supply)	50 m max. (with shielded cable)
		Power supply on both sides (separate power supplies)	10 m max.
		Power supply on both sides (separate power supplies)	100 m max. (with shielded cable)
	Standard	Power supply on one side (common power supply)	100 m max.
	Standard	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))

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.
*1. 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.

Specifications

Mode	Standard mode	High-speed mode
I/O points	IN 32/OUT 32 (CJ1W-B7A22) IN 64 (CJ1W-B7A14) OUT 64 (CJ1W-B7A04)
Transmission method	One-way time-sharing multiplex transmissions
Transmission distance	500m max.	100m max.
Transmission delay	19.2ms (typical)	3ms (typical)
Minimum input time	16ms	2.4ms
Power Supply voltage (allowable voltage range)	12 to 24VDC (10.8 to 26.4VDC)
I/O memory Allocations	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.
Transmission error bit	A transmission error bit for each input port is allocated in the Basic I/O Unit Information Area.
Cable	VCTF, 0.75mm² recommended.

last update: September 24, 2012

Product Category

Automation Systems
- Programmable Controllers
  - CJ1
    - Basic I/O Units
      - CJ1W-ID / IA
      - CJ1W-OC / OA / OD
      - CJ1W-MD
      - CJ1W-INT01
      - CJ1W-IDP01
      - CJ1W-B7A

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