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9-21
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
*_CMstrNdDupErr
(Node Address Dupli-
cated/Bus Off Error) are TRUE.
*_UnitErr
(Unit Error) and
*_NdAdrDupErr
(Node Address Dupli-
cated) are TRUE.
Check the node addresses set on
other nodes in the network. Correct
the settings to eliminate the duplica-
tion and restart the DeviceNet Units.
*_CMstrErr
(Master Error) and
*_CMstrNdDupErr
(Node Address Dupli-
cated/Bus Off Error) are TRUE.
*_UnitErr
(Unit Error) and
*_BusoffErr
(Bus Off Error) are TRUE.
Check the following:
•
Matching master and slave baud
rates
•
Proper cable lengths (trunk and
branch lines)
•
Broken or loose cables
•
Installation of terminators only at
both ends of the trunk line
•
Excessive noise
-
-
Set the unit numbers correctly and
restart the DeviceNet Units.
-
-
Replace the CPU Unit if the error
recurs when the Controller is
restarted.
-
-
Replace the DeviceNet Unit if the
same error recurs when the Unit is
mounted to another CPU Unit.
-
-
Set the node address correctly and
restart the DeviceNet Units.
-
-
Set the communications speed cor-
rectly and restart the DeviceNet Units.
-
-
Replace the CPU Unit if the error
recurs when the Controller is
restarted.
-
-
Create the Unit Configuration in which
the Unit is registered to.
Содержание CJ1W-DRM21
Страница 12: ...Manual Structure 10 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 42: ...Revision History 40 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 214: ...6 Message Communications 6 26 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 345: ...Index 1 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 I Index ...
Страница 349: ......