Mitsubishi Electric GOT1000 Series Connection Manual page 374

RS422 connection diagram 3)
GOT side
SDA1(TXD1+)
1
SDB1(TXD1-)
2
RDA1(RXD1+)
3
RDB1(RXD1-)
4
SDA2(TXD2+)
5
SDB2(TXD2-)
6
RDA2(RXD2+)
7
RDB2(RXD2-)
8
RSA(RTS+)
9
RSB(RTS-)
10
CSA(CTS+)
11
CSB(CTS-)
12
SG
13
NC
14
Shell
RS422 connection diagram 4)
GOT side
RDA
2
RDB
7
SDA
1
SDB
6
RSA
3
RSB
8
CSA
4
CSB
9
SG
5
FG
-
RS422 connection diagram 5)
GOT side
RDA
2
RDB
7
SDA
1
SDB
6
RSA
3
RSB
8
CSA
4
CSB
9
SG
5
FG
-
12 - 6
12. CONNECTION TO TOSHIBA PLC
12.2 Serial Connection
TOSHIBA PLC side
RXA
2
R
RXB
10
TXA
3
TXB
11
1
4
5
6
7
9
12
13
SG
8
14
15
TOSHIBA PLC side
TXA
3
TXB
11
RXA
2
R
RXB
10
RTSB
13
FG
1
RTSA
5
CTSA
4
SG
7
CTSB
12
TOSHIBA PLC side
TXA
TXB
RXA
RXB
SG
TERM
RS422 connection diagram 6)
GOT side
RDA
2
RDB
7
SDA
1
SDB
6
RSA
3
RSB
8
CSA
4
CSB
9
SG
5
FG
-
(2) Precautions when preparing a cable
(a) Cable length
The length of the RS-422 cable must be 1km or
less.
(b) GOT side connector
For the GOT side connector, refer to the following.
1.4.1 GOT connector specifications
(c) TOSHIBA PLC side connector
Use the connector compatible with the TOSHIBA
PLC.
For details, refer to the TOSHIBA PLC user's
manual.
(3) Setting terminating resistors
(a) GOT side
• For GT16, GT15, GT12
Set the terminating resistor setting switch of the
GOT main unit to "Disable".
• For GT14, GT11
Set the terminating resistor selector to "330 ".
For details of terminating resistor settings, refer to
the following.
1.4.3 Terminating resistors of GOT
(b) TOSHIBA PLC side
When connecting an TOSHIBA PLC to a GOT, a
terminating resistor must be set to the TOSHIBA
PLC.
For the setting of the terminating resistor, refer to
the following manual.
TOSHIBA PLC user's Manual
• T2 (PU224), T2N, T3, T3H, model 3000 (S3)
Connect the terminating resistor (1/2W-120 )
across RXA and RXB.
• T2E, model 2000 (S2, S2T)
Short across the RXA and TERM terminals.
TOSHIBA PLC side
TXA
3
TXB
11
RXA
2
R
RXB
10
SG
8