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Appendix 2 n : 1 Connection (Multi-link 2)
App2-5
Terminating Resistance Setting
For V7 Series:
•
The terminating resistance of the V7 series should be set on the DIP switch.
•
When the PLC and the master station are connected via RS-422/485, set the terminating
resistance at the PLC and the master station (CN1).
•
When the V7 series (master and slave stations) are connected via RS-485 (2-wire), set the
terminating resistance at the V7 series master station (MJ1/2) and the terminating slave station
(CN1).
Terminating Resistance Setting Example
1.
When the PLC is connected to V7 series master station via RS-232C:
2.
When the PLC is connected to V7 series master station via RS-422/485:
ON
1
2
3
4
5
6
7
8
CF auto load
MJ2 (modular jack 2) terminating resistance
Not used
CN1 RD terminating resistance at pins 24 and 25
MJ1 (modular jack 1) terminating resistance
CN1 SD terminating resistance at pins 12 and 13
RS-232C
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
PLC
CN1
CN1
CN1
CN1
MJ1/2
RS-485 (2-wire)
V7 master station
(= Local Port 1)
V7 slave station
(= Local Port 2)
V7 slave station
(= Local Port 3)
V7 slave station
(= Local Port 4)
Terminal
block
When MJ2 is
used:
When MJ1 is
used:
RS-422/485
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
PLC
CN1
CN1
CN1
CN1
MJ1/2
RS-485 (2-wire)
V7 master station
(= Local Port 1)
V7 slave station
(= Local Port 2)
V7 slave station
(= Local Port 3)
V7 slave station
(= Local Port 4)
When MJ2 is
used:
When MJ1 is
used:
Terminal
block
Содержание V Series
Страница 1: ...V Series...
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