Rs-422 Cable - Mitsubishi Electric GT16 User Manual

53.3.2 RS-422 cable

POINT POINT POINT
Differences in polarity between GOT and RKC
temperature controllers
The polarity of poles A and B in signal names is
reversed between GOT and RKC temperature
controllers.
Connect a cable according to the following
connection diagrams.

Connection diagram
RS422 connection diagram 1)
Connector conversion
box side
RDA
2
RDB
7
SDA
1
SDB
6
RSA
3
RSB
8
CSA
4
CSB
9
SG
5
FG
-
*1 Set the terminating resistor setting switch of the GOT main
unit to "Disable".
*2 For details of the pin assignment, refer to user's manual of
the RKC temperature controller.
RS422 connection diagram 2)
RKC temperature controller side
(Modular connector) * 1
R(A)
1
R(B)
2
SG
3
T(B)
4
T(A)
5
SG/N.C.
6
*1 For details of the pin assignment, refer to user's manual of
the RKC temperature controller.
RS422 connection diagram 3)
RKC temperature
controller side * 1
T (A)
T (B)
R (A)
R (B)
SG
*1 For details of the pin assignment, refer to user's manual of
the RKC temperature controller.
53 - 12
53. CONNECTION TO RKC TEMPERATURE CONTROLLER
53.3 Connection diagram
RKC temperature controller side
(Modular connector) * 2
T(B)
4
T(A)
5
R(B)
2
R(A)
1
SG
3
SG
6
RKC temperature controller side
(Modular connector) * 1
R(A)
1
R(B)
2
SG
3
T(B)
4
T(A)
5
SG/N.C.
6
RKC temperature
controller side * 1
T (A)
T (B)
R (A)
R (B)
SG
RS422 connection diagram 4)
Connector conversion
* 1
box
side
RDA
2
RDB
7
SDA
1
SDB
6
RSA
3
RSB
8
CSA
4
CSB
9
SG
5
FG
-
*1 Set the terminating resistor setting switch of the GOT main
unit to "Disable".
*2 For details of the pin assignment, refer to user's manual of
the RKC temperature controller.

Precautions when preparing a cable
(1) Cable length
(a) The length of the RS-422 cable used for
connecting the temperature controller to the
communication converter
The length of the RS-422 cable must be within the
maximum distance.
(b) The length of the RS-422 cable used for
connecting the temperature controller to the GOT
The total distance (between GOT and controllers)
of RS-422 cable must be 13m or less.
(2) Connector conversion box side connector
For the Connector conversion box side connector, refer
to the following.
6.7 Connector Conversion Box
(3) RKC temperature controller side connector
Use the connector compatible with the RKC
temperature controller side module.
For details, refer to user's manual of the RKC
temperature controller.

Connecting terminating resistors
(1) GOT side
When connecting a PLC to the GOT, a terminating
resistor must be connected to the GOT.
Set the terminating resistor by operating the terminating
resistor setting switch.
For the procedure to set the terminating resistor, refer
to the following.
4.2 Back Panel
RKC temperature
controller side * 2
T (B)
T (A)
R (B)
R (A)
SG