Toshiba RS-485 用户手册
7
7
Cable connection
R R T T S S
X X X X G H
A B A B I
E
L
D
X X X X G H
A B A B I
E
L
D
SW
INVERTER 1
INVERTER 2
RS485
OPTION UNIT
OPTION UNIT
Host
Computer
Computer
1.Transmit positive line (TXA)
2.Transmit negative line (TXB)
3.Receive positive line (RXA)
4.Receive negative line (RXB)
5.Signal line ground (SC)
6.Shield ground (FG)
2.Transmit negative line (TXB)
3.Receive positive line (RXA)
4.Receive negative line (RXB)
5.Signal line ground (SC)
6.Shield ground (FG)
Another
RS-485
Option Unit
RS-485
Option Unit
1.RXA
2.RXB
3.TXA
4.TXB
5.SG
6.SHIELD
2.RXB
3.TXA
4.TXB
5.SG
6.SHIELD
1 2 3 4 5 6
1 2 3 4 5 6
VF-S7
VF-S7
Communication
connector CN1
connector CN1
Opening for communication connector
To open the cover of the communication
connector, slide it in the direction
indicated with a triangle mark.
To open the cover of the communication
connector, slide it in the direction
indicated with a triangle mark.
More than 5cm
More than 5cm
Leave a space more
than 5cm on left and
bottom side of option
unit for connecting the
communication cable.
than 5cm on left and
bottom side of option
unit for connecting the
communication cable.