Mitsubishi Electronics FX3G User Manual

899

/FX

3GC

/FX

3UC

Series

Programming Manual - Basic & Applied Instruction Edition

38 Error Check Method and Error Code List

38.4 Error Code List and Action

FNC277

-F

NC2
79

Trans
fer 3

FNC28

0-F

NC
289

igh-Speed

Process

ing 2

FNC2

90-
FNC299

tensi

on Fi
le

ontrol

C300-

FNC30

-C

F-

SFC

•STL

Programming

Interrupt

Function

l D

evi

rror Code

rsi

on U

Inform

ati

ecuti

imes

Operation error [M8067(D8067)]

6762

Continues

operation

Port specified by inverter communication instruction is
already used in another communication.

Check to make sure the port is not specified by another
instruction.

6763

1) Input (X) specified by a DSZR, DVIT or ZRN

instruction is already used in another instruction.

2) The interrupt signal device for a DVIT instruction is

outside the allowable setting range.

1) Check to make sure the input (X), as specified by a

DSZR, DVIT or ZRN instruction, is not being used for
the following purposes:

Input interrupt (including the delay function)

High-speed counter C235 to C255

Pulse catch M8170 to M8177

SPD instruction

2) Check the contents of D8336 for the correct interrupt

signal specification for a DVIT instruction.

6764

Pulse output number is already used in a positioning
instruction or pulse output instruction (PLSY, PWM,
etc.).

Check to make sure the pulse output destination is not
being driven by another positioning instruction.

6765

Number of applied instruction exceeds limit.

Verify that the number of times that applied instructions
are used in the program does not exceed the specified
limit.

6770

Memory access error

When the memory cassette is used, check whether it is
mounted correctly.
If the problem persists or if the memory cassette is not
used, something may be malfunctioning inside the PLC.
Consult your local Mitsubishi Electric representative.

6771

Memory cassette is not connected.

Check for the correct attachment of the memory cassette.

6772

Memory cassette is protected against writing.

The write-protect switch of the memory cassette was set
to ON when data was transferred
to the flash memory. Set the protect switch to OFF.

6773

Access error to memory cassette during writing in RUN
mode

While data was written in the RUN mode, data was
transferred to (read from or written to) the memory
cassette.

USB communication error [M8487(D8487)]

8702

Continues

operation

Communication character error

Confirm the cable connection between the programming
device and the PLC. This error may occur when a cable
is disconnected and reconnected during PLC monitoring.

8703

Communication data sum check error

8704

Data format error

8705

Command error

8730

Memory access error

Special block error [M8449(D8449)]

020

Continues

operation

General data sum error

Verify that extension cables are correctly connected.

021

General data message error

022

System access error

025

Access sum error in other station via CC-Link

026

Message error in other station via CC-Link

030

Memory access error

080

FROM/TO error

This error occurs in the execution of operation.
•

Review the program and check the contents of the
operands used in applied instructions.

•

Verify that specified buffer memories exist in the
counterpart equipment.

•

Verify that extension cables are correctly connected.

090

Peripheral equipment access error

•

Check the cable connection between the
programming panel (PP) / programming device and
the PLC.

•

Verify that extension cables are correctly connected.

*1.

The unit number 0 to 7 of the special function unit/block error is put in .

Error

code

PLC operation at
error occurrence

Contents of error

Action