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B7A/B7AS
Connection of Single Power Supply to Input or Output Terminal
SIG
SIG
(+)
(–)
+
–
Modular Models
I/O Delay: Normal Speed
Connection of Independent Power Supplies
Input terminal
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
12 to 24 VDC
Transmission distance
500 m max.
Note: A VCTF cable with a thickness of 0.75 mm
must be used for signal transmission.
I/O Delay: High Speed
Connection of Independent Power Supplies
Input terminal
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
12 to 24 VDC
Transmission distance
100 m max.
Note: A shielded cable with a thickness of 0.75 mm
must be used for signal transmission. It is recom-
mended that the shield be grounded.
The maximum transmission distance is 10 m if a VCTF
wire with a thickness of 0.75 mm
shielded cable for the transmission path.
22
B7A/B7AS
IN
Shielded cable
–
+
SIG
Transmission distance
50 m max.
Output terminal
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
2
min.
Output terminal
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
GND
2
min.
2
is used instead of a
ERROR
SIG
ERR
SIG
(+)
(–)
+
–
Note: In this example, a shielded transmission
cable with a thickness of 0.75 mm
GND
through which a current of 1.8 A max. can
+
–
be transmitted. It is recommended that the
DC power
shield be grounded.
supply
The maximum transmission distance is
(24 V)
10 m if a VCTF wire with a thickness of
0.75 mm
cable for the transmission path.
Connection of Single Power Supply to Input or
Output Terminal
Input terminal
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
12 to 24 VDC
Note: In this example, a VCTF transmission cable with a
thickness of 0.75 mm
current of 1.8 A max. can be transmitted.
Connection of Single Power Supply to Input or
Output Terminal
Input terminal
24
23
22
21
20
19
18
17
16
15
14
1
2
3
4
5
6
7
8
9
10
11
12 to 24 VDC
Note: In this example, a shielded transmission cable with a
thickness of 0.75 mm
current of 1.8 A max. can be transmitted. It is recom-
mended that the shield be grounded.
The maximum transmission distance is 10 m if a VCTF
wire with a thickness of 0.75 mm
shielded cable for the transmission path.
B7A/B7AS
2
is used instead of a shielded
Output terminal
24
23
22
21
20
19
18
17
16
1
2
3
4
5
6
7
8
Transmission distance
100 m max.
2
min. is used, through which a
Output terminal
13
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
12
GND
Transmission distance
50 m max.
2
min. is used, through which a
2
is used instead of a
B7A/B7AS
OUT
2
is used,
15
14
13
9
10
11
12
24 VDC
16
15
14
13
9
10
11
12
24 VDC
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