Omron CJ1W-DRM21, Operation Manual

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9-5
9 Troubleshooting and Maintenance
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
9-1 T
rou
b
lesho
o
ting
with the De
v
iceNet U
n
it Indi
cato
rs
9
9-1-2 T
roub
leshooting Errors
Occurr
ing
in the
De
viceNet Un
it
Status of C200H Master Replacement
Master Status 1
*_CMstrSta*_CMstrSta
Status of device variables
for CJ-series Units
Correction
*_CMstrErr (Master Error) and
*_CMstrIOErr (Communication Error) are
TRUE or *_CMstrErr (Master Error) and
*_CMstrSendErr (1Send Error) are
TRUE.
*_Mstr1IOErr (Remote I/O Communica-
tion Error), *_UnitErr (Unit Error) and
*_MstrFunErr (Master Function Error)
are TRUE, or *_NetPwrErr (Network
Power Error) and *_UnitErr (Unit Error),
or *_SendTimeoutErr (Send Timeout
Error) and *_UnitErr (Unit Error) are
TRUE.
Perform error processing according to
the cause:
• Remote I/O communications error
(See error d9.)
• Network power supply error (See
error E0.)
• Transmission timeout error (See
error E2.)
Correct the cause of the error and
then restart remote I/O communica-
tions using the software switch
*_Sw1IOCommStartCmd (the
Remote I/O Communications Start
Switch.)
- - Switch the CPU Unit to PROGRAM
mode and try the operation again.
- - The C2 display will automatically go
out after 30 seconds or will go out if
the new software switch operation is
successful.
- - Correct the structure error's cause
(see errors d0 to d2), then register to
the scan list again after checking
there is no error.