B7A
B7A
41
Installation
Internal Circuits and Terminal Arrangement
16-point Terminals
B7A-T6E3/-T6E8 (Input, Active Low)
–
SIG
12 to
24 VDC
Terminal
board
Internal circuit
IN00
IN15
to
+
+
_
Transmission
line
Terminal
board
Connector
Connector
Terminal No.
Terminal
Terminal No.
Terminal
1
IN00
13
IN08
2
IN01
14
IN09
3
IN02
15
IN10
4
IN03
16
IN11
5
IN04
17
IN12
6
IN05
18
IN13
7
IN06
19
IN14
8
IN07
20
IN15
9
–
21
–
10
+
22
+
11
NC (open)
23
NC (open)
12
NC (open)
24
NC (open)
Note:
Do not short-circuit the SIG terminal with a positive or nega-
tive power supply terminal, otherwise the internal elements
of the B7A will be damaged and no transmission will be pos-
sible.
B7A-R6A13/-R6A18/-R6A33/-R6A38
(Output, NPN Open Collector)
Internal circuit
12 to
24 VDC
ERR
Terminal
board
Connector
OUT00
OUT15/ERR
to
+
_
Transmission
line
SIG
Connector
Terminal
board
I/O output or error output
can be selected.
+ (9, 21)
(see note 2)
(see note 1)
Fuse
(see note 3)
(See note 1)
Terminal No.
Terminal
Terminal No.
Terminal
1
OUT00
13
OUT08
2
OUT01
14
OUT09
3
OUT02
15
OUT10
4
OUT03
16
OUT11
5
OUT04
17
OUT12
6
OUT05
18
OUT13
7
OUT06
19
OUT14
8
OUT07
20
OUT15/ERR
(see note 1)
9
+ (see note 2)
21
+ (see note 2)
10
NC (open)
22
NC (open)
11
NC (open)
23
NC (open)
12
NC (open)
24
NC (open)
Note:
1. It is possible to select 16 I/O points or 15 I/O points and 1
error output point.
2. A maximum of 0.4 A can be supplied from each positive
terminal.
3. The user cannot replace the fuse.
4. Do not short-circuit any output terminal with the positive
terminal, otherwise the internal elements of the B7A will
be damaged.