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4.2.11 Connecitng a PLC by Mitsubishi Electric Corporation
FX Series
Connection method
CPU Calculator link unit Wiring diagram GT series
FX1N FX1N-232-BD
FX2N FX2N-232-BD
GT30
Note) Be aware that communication will not be possible if the above adaptor cannot be connected to the
FX series.
Setting the communication conditions
Setting communication conditions on the GT side
Set the COM. port communication conditions as follows.
Item Value set
Baud rate 9600 bps
Data length 7 bits
Parity check Yes, Even
Stop bit 1 bit
Setting communication conditions on the PLC side
“0” should be stored in D8120. (“0” is the default value, so this setting should not need to be entered by
the user.)
Usable devices
Device type Address range Points
Input relay X000 to X377 (Octal notation) 256 points
Output relay Y000 to Y377 (Octal notation) 256 points
Auxiliary relay M0000 to M1535 (Decimal notation) 1536 points
Data register D0000 to D1023 (Decimal notation) 1024 words
Note1) Depending on the type being used, the address range may be limited to a small range. Refer to
the instruction manual of the PLC being used for detailed information.
Note2) If input relays, output relays and auxiliary relays are being used in word units, addresses should
be specified in 16-point units, starting from 000. (X000, X020, X040, …)
Reference: <Chapter 8 Troubleshooting>
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