Mitsubishi-electric QJ71C24N Manuel d'utilisateur télécharger pdf (Page 267)

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MELSEC-Q

10 TROUBLESHOOTING

Protocol

Error code

(Hexa-

decimal)

Error

Error Contents

Signal

name

Corrective action

Non

Proce-

dure

Bidire-

ctional

7148

Extension R block

No. error

• A nonexistent extension file register block No. was

designated.

• A block No. being used as an extension comment

area, sampling trace area, or status latch area was

designated.

PRO

• Correct the designated block

No. and restart data

communications.

7149H System error • The OS of the Q series C24 detected some error. — ( 1)

714AH

Cannot execute a

command during

RUN

• A write command was designated when "Disable

write during RUN" was set.

• Parameter or sequence program was written during

RUN.

C/N

• Change the setting to "Enable

write during RUN" and restart

data communications.

• Stop the CPU and restart data

communications.

714BH

714D

System error • The OS of the Q series C24 detected some error. — ( 1)

714E

Monitor network

No. error

• The written monitor network No. and the monitor

request network No. are different.

C/N

• Check and correct the other

station access valid module No.

in the network parameters.

• Rewrite the monitor data.

7150H System error • The OS of the Q series C24 detected some error. — ( 1)

7151

PLC No.

designation error

• A PLC No. other than "FF" or "0 to 64(00

to 40

was designated.

C/N

• Check and correct the external

device transmit message and

restart data communications.

7152H System error • The OS of the Q series C24 detected some error. — ( 1)

7153H Frame length error

• The received message length has exceeded the

allowable range.

CHn

ERR.

• Review the transmission

message.

• Correct the message format so

the number of access points is

within the allowable range.

7154

System error • The OS of the Q series C24 detected some error. — ( 1)

7155

Unwritten monitor

data error

• Monitoring was requested before monitor data was

written.

PRO

• Write the device to be monitored

before issuing a monitor

request.

7156

System error • The OS of the Q series C24 detected some error. — ( 1)

7160H PLC access error • CPU model name cannot be confirmed. C/N

• If there is an error in the CPU,

remove the CPU error and

restart data communications.

7161H

7163

System error • The OS of the Q series C24 detected some error. — ( 1)

7164H Request error

• Either the request or the device designation method

is wrong.



• Check the transmission

message/request from the

external device, make the

necessary corrections, and send

again.

7166

System error • The OS of the Q series C24 detected some error. — ( 1)

7167

• A write command was designated when "Disable

write during RUN" was set.

C/N

• Change the setting to "Enable

write during RUN" and restart

data communications.

7168

Cannot execute a

command during

RUN

• A command that cannot be executed during RUN

was designated.

C/N

• Stop the CPU and restart data

communications.

7169

CPU error • Cannot communicate normally with the CPU. C/N

• If there is an error in the CPU,

remove the CPU error and

restart data communications.

716AH

716C

System error • The OS of the Q series C24 detected some error. — ( 1)

716D

• Monitor data was not written using QnA compatible

2C/3C/4C frame.

PRO

716E

Monitor data write

error

• Monitor data was not written using A compatible 1C

frame.

PRO

• Rewrite monitor data.

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Mitsubishi-electric QJ71C24N Manuel d'utilisateur Page 267

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