Instructions
D+
D-
1
7
2
8
3
9
4
10
5
11
6
12
D+
D-
1
7
2
8
3
9
4
10
5
11
6
12
D+
D-
1
7
2
8
3
9
4
10
5
11
6
12
D+
Rt
MASTER
SLAVE-1
SLAVE-2
SLAVE-N
Rt
D-
PC(PersonalComputer)
RS-232 RS-485
Convertor
Þ
RS-232
Connection
Cable
32terminalcanbeconnectedinRS-
485line
Rtresistor=120
Forcommunicationconnection
TwistedPaircablemustbeused
Cablelenghtcanbemaximum1000
metersin9600baudrate.
Whenbaudrateincreases,cable
lenghtmustbedecreased.
W
6.2ConnectionforRS-485SerialCommunication
39