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9 Troubleshooting and Maintenance
9-26
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
9-4-2 Error Contents and Details
Error code Error contents Details Stored in
EEPROM
First byte Second byte
0001 Hex CPU Unit watchdog timer
error Always 00 Hex Always 00 Hex Yes
0002 Hex CPU Unit service monitor-
ing error Monitoring time (Unit: 1 ms) Yes
0006 Hex Other CPU Unit errors Bit 11: The unit number is not included in the Unit Configura-
tion in the CPU Unit.
Other bits not used.
Yes
000F Hex CPU Unit initial processing
error Always 00 Hex Always 00 Hex Yes
0011 Hex CPU Unit initial processing
error Not fixed Not fixed Yes
0012 Hex CPU Unit memory error 01 Hex: Read error
02 Hex: Write error
03 Hex: Routing tables
05 Hex: System Settings
Data for the Unit
No
0108 Hex Send not possible because
Unit is not detected Event Send/Receive Errors
Commands:
Send source network address < 80
Bit 15:
OFF
Bits 08 to 14: Send source network address
Bits 00 to 07: Send source node address
Send source network address
≥
80
Bit 15: OFF
Bits 08 to 14: 00
Bits 00 to 07: Send source network address
Responses:
Send destination network address < 80
Bit 15: ON
Bits 08 to 14: Send destination network address
Bits 00 to 07: Send destination node address
Send destination network address
≥
80
Bit 15: ON
Bits 08 to 14: 00
Bits 00 to 07: Send destination network address
No
010B Hex Send not possible due to
CPU Unit error No
010D Hex Send not possible due to
remote address setting
error No
010E Hex Send not possible because
routing tables are not set
properly No
0112 Hex Send not possible due to
header setting error No
0117 Hex Internal reception buffer full No
0118 Hex Illegal packet discarded No
011B Hex Parity error 01 Hex: Port 1
02 Hex: Port 2
Always 00 Hex No
011C Hex Framing error No
011D Hex Overrun error No
011E Hex FCS check error No
021A Hex Setting table logic error Always 00 Hex 03 Hex: Routing tables
05 Hex: System Settings
Data for the Unit
No