B7A Interface Unit; Overview; System Configuration; Models - Omron CJ - 09-2009 Operation Manual

B7A Interface Unit

3-7

B7A Interface Unit

3-7-1

Overview

3-7-2

System Configuration

12 to 24 V DC power supply
(when using a common power supply)
3-7-3

Models

B7A Interface Unit
CJ1W-B7A14
CJ1W-B7A04
CJ1W-B7A22
Note
The B7A is a 1:1 transmission path that does not require a master. A total of
16 signals are transmitted using a two-conductor or three-conductor VCTF
cable (maximum length: 500 m). The CJ1W-B7A@@ B7A Interface Unit is a
CJ-series Basic I/O Unit that exchanges up to 64 points of I/O data mainly
with B7A Link Terminals using a B7A transmission path.
The B7A Interface Unit and B7A Link Terminal can be used in the same way
as a standard Basic I/O Unit and I/O Terminal without any need to worry about
communications. This characteristic reduces the wiring when using more than
one relatively remote sensor or actuator.
CJ-series
Power
CPU Unit
Supply
Unit
Specifications I/O words allocated
64 inputs 4 input words
(four B7A ports)
64 outputs 4 output words
(four B7A ports)
32 inputs, 32 outputs 2 input words and
2 output words
(four B7A ports)
1. A 10-point B7A Link Terminal cannot be connected to a B7A Interface Unit.
B7A Interface Units can be connected together.
2. Wireless transmissions are possible if B7AP Power Couplers are used on
a B7A transmission path, reducing the wiring required for moving objects
and rotating objects.
CJ1W-B7A@@
B7A Interface Unit
Three-conductor VCTF
connecting cable × 4
Connectable B7A Link Terminals
to Unit
Inputs: Four 16-point Input Terminals, two 32-
point Input Terminals, or two 16-point Input
Terminals and one 32-point Input Terminal
Outputs: Four 16-point Output Terminals or
two 32-point Output Terminals
Inputs: Two 16-point Input Terminals or one
32-point Input Terminal
Outputs: Two 16-point Output Terminals or
one 32-point Output Terminal
or
Two Mixed I/O Terminals
(16 inputs/16 outputs)
Section 3-7
B7A Link Terminals
(See note 1.)
197