Mitsubishi 900 Series User Manual page 74

8 EMC DIRECTIVE
GOT side
130
(5.12)
Within 250
(9.84)
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(5) Other PLC and Microcomputer connection
It is necessary for the user to create the cable used to connect GOT with a PLC
or a microcomputer from another company (RS-422 cable or RS-232C cable).
Refer to the GOT-A900 series User's Manual (GT Works Version 5/GT Designer
Version 5 compatible Connection System Manual) for information about the cable
creation method.
POINT
When connecting GOT to a PLC or microcomputer from another company,
configure the system so that the EMC directive specifications from the connection
destination are applicable.
The contents shown below are a collection of the contants that should be enforced
when made applicable to the EMC directive; however, the final decision to make
the device applicable to the EMC directive and how to make it applicable must be
made by the manufacturer of the machine device.
(a) For RS-422 cable
• Each signal wire (excluding SG and FG) should be made into a two power
wires and connected, then twisted.
SDA
SDB
RDA
RDB
• Make the SG wire more than two wires and connect.
• Wrap the cable shield material around the cable, so that the back aluminum
foil side (shield side) of the cable shield material is exposed at both ends of
the cable.
Ferrite core
(ZCAT3035-1330)
Cable shield material*1
1 The back aluminum foil side of the cable shield material (shield side)
should be exposed. (Refer to section 8.3.2 (1) (b))
MELSEC-GOT
Other PLC and
Microcimputer side
Near the
connection
destination
Near the connection
Unit : mm (inch)
destination
RDA
RDB
SDA
SDB
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