3-2 error codes, Error codes – Omron CQM1H-CLK21 User Manual

Page 337

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314

Error Log

Section 9-3

Time Information

The time is recorded in BCD with one byte each for the year (the rightmost
two digits), month, day, hour, seconds, and minutes of the time the error
occurred.

Note

1.

The PLC’s time information can be read and used in the Controller Link
Unit. When the time cannot be read from the PLC, all error log times will
but 0. This can occur for PLC startup errors, Unit No. errors, CPU Unit er-
rors, or PLC model errors. When error logs like these are read from the
Controller Link Support Software, they will be dated 0 s, 0 min, 0 hr, 0 day,
0 month, 2000.

2.

When replacing the battery for CS/CJ-series PLCs, it will be necessary to
switch the power supply ON and reset the internal clock.
If the internal clock is not reset, time information in the error log will not be
recorded correctly.

3.

The time information will be all zeros for CQM1H-series PLCs unless a
Memory Cassette with a clock is mounted in the CPU Unit. The time infor-
mation will be all zeros in the year 2000 if it is read from Support Software.

9-3-2

Error Codes

The following table lists the error codes (in 4-digit hexadecimal) and the con-
tents of the errors.

Error

code

Contents

Detail code

Correction

Written to

EEPROM

Applicable

PLC

1st byte

2nd byte

0001
Hex

PLC watchdog timer error

00 Hex

00 Hex

Replace PLC’s CPU
Unit.

Yes

All

0002
Hex

PLC service monitor error

Monitor time (unit: ms)

Check operating
environment.

Yes

CV, CS/CJ

0003
Hex

PLC shared RAM error

01 Hex:
Cyclic
02 Hex:
Event
04 Hex:
CPU bus link

00 Hex

Check operating
environment.

Yes

CV

0004
Hex

CPU Bus Unit ID number error

00 Hex

00 Hex

Check I/O
Connecting Cables.

Yes

CV, CS/CJ

0005
Hex

Unit number error

Unit set
value

The value
recognized
by the CPU
Unit

Check the Unit
number setting. Rec-
reate the I/O table.

Yes

CV

0006
Hex

CPU Unit error

Bit 11:No relevant Unit in

I/O table.

Bit 12: Hardware test unit

number recognized.

Bit 13: Incorrect unit num-

ber.

Bit 14: Duplicated unit

number.

Check the Unit num-
ber settings. Recre-
ate the I/O table.

Yes

CV, CS/CJ

000D
Hex

PLC model error

Not set

Refer to 1-2-4 Con-
troller Link Unit Mod-
els and PLCs an
d
PLCs
and check the
PLC model.

Yes

C200HX/HG/
HE

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