Mitsubishi Electric GOT2000 Series Connection Manual page 461

■3. RS-422 connection diagram 3)
*1
GOT side (terminal block)
SDA
SDB
RDA
RDB
SG
*3
RSA
*3
RSB
*3
CSA
*3
CSB
*1 Set the terminating resistor to "330Ω" when arranging the GOT in the end position of the system configuration.
Set the terminating resistor to "OPEN" when arranging the GOT in any position other than the end position of the system
configuration.
➠
*2 For terminating resistors in PLCs manufactured by MITSUBISHI ELECTRIC INDIA, refer to the manual of PLCs manufactured by
MITSUBISHI ELECTRIC INDIA.
*3 The signals RSA, RSB, CSA, and CSB are not provided for
■4. Precautions when preparing a cable
(1) Cable length
The length of the RS-422 cable must be 1200m or less.
(2) GOT side connector
For the GOT side connector, refer to the following.
➠ 1.4.1 GOT connector specifications
(3) Connectors on the MITSUBISHI ELECTRIC INDIA PLC side
Use proper connectors on the MITSUBISHI ELECTRIC INDIA PLC side.
For the details, refer to the User's Manual of the used PLC manufactured by MITSUBISHI ELECTRIC INDIA.
■5. Connecting terminating resistors
(1) GOT side
Set the terminating resistor setting switch.
For the procedure to set the terminating resistor, refer to the following.
➠
1.4.3 Terminating resistors of GOT
(2) MITSUBISHI ELECTRIC INDIA PLC side
It is necessary to set terminating resistors in the PLC manufactured by MITSUBISHI ELECTRIC INDIA when
connecting the GOT to the PLC manufactured by MITSUBISHI ELECTRIC INDIA.
For the details, refer to the User's Manual of the used PLC manufactured by MITSUBISHI ELECTRIC INDIA.
MITSUBISHI ELECTRIC INDIA
1.4.3 Terminating resistors of GOT
*2
PLC side
Rx +
9
Rx –
8
Tx +
4
Tx –
7
GND
5
. Return connection is not required.
13.3 Connection Diagram
MITSUBISHI ELECTRIC INDIA
*2
PLC side
Rx +
9
Rx –
8
Tx +
4
Tx –
7
GND
5
13 - 7
13