6 Troubleshooting and Maintenance
6-8
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
Note
The error information is not written to EEPROM when a memory error occurs in the error log
area (EEPROM).
The Unit status can be read by analyzing the status words. In the next table there is an overview of all
information which can be analyzed. The Unit uses only device variables
*_StaComm
,
*_DelayMsgNo
and
*_ProcMsgNo
for status information
6-3-2
Error Codes and Detail Codes
Error
code
(Hex)
ID
Error
Detail code
Record
stored in
EEPROM
First byte
Second byte
0001
ER1
CPU Unit watchdog timer error
00 Hex
00 Hex
Yes
0002
ER2
CPU Unit service monitoring error
(Servicing from the CPU Unit is not
performed at fixed intervals.)
Monitoring time (ms)
Yes
000E ER3
PC21 Bus Error
00 Hex
00 Hex
Yes
0601
ER5
CPU Bus Unit Error
Undefined Contents
Yes
0602
ER5
Error Log Read Error
01 Hex
06 Hex
Yes
ER6
Error log write error
02 Hex
06 Hex
No
ER7
Network parameter read error
01 Hex
02 Hex
Yes
ER8
Network parameter write error
02 Hex
02 Hex
No
0201
ER8
Network parameter file lost
00 Hex
00 Hex
No
0340
ER10
Network power fail
00 Hex
02 Hex
Yes
6-3-3
Status Information
Device Variable
*_StaComm
(Word)
Device Variable
Name
Status
Controlled
by
Unit Operation
*_MsgRcv (Bool)
CAN Mes-
sage
Received
OFF
Unit
New configured CAN message received
since last cyclic refresh
ON
Unit
No new configured CAN message received
since last cyclic refresh
*_SendOver
(Bool)
Send Over-
flow
OFF
Unit
All messages to be sent fit in the send queue
ON
Unit
Send queue overflow, some messages will be
delayed
*_RcvOver (Bool)
Recieve
Overflow
OFF
Unit
Receive queue overflow, some received mes-
sages have been discarded
ON
Unit
All messages received were handled
*_NetPwrErr
(Bool)
Network
Power Fail-
ure
OFF
Unit
Network power OK
ON
Unit
Error ER10 active (Power fail when communi-
cating)
Summary of Contents for CJ1W-CORT21
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Page 140: ...Appendices A 6 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Page 141: ...Index 1 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 I Index...
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