Allen-Bradley MicroLogix 1761-NET-ENI, User Manual, Page: 83 / 102

Publication 1761-UM006A-EN-P - February 2001
Troubleshooting 8-5
E6H PCCC Description: Illegal Address, address does not exist, or does not point to something usable by this command.
E7H Target node cannot respond because length requested is too large.
E8H PCCC Description: Cannot complete request, situation changed (file size, for example) during multi–packet operation.
E9H PCCC Description: Data or file is too large. Memory unavailable.
EAH PCCC Description: Request is too large; transaction size plus word address is too large.
EBH Target node cannot respond because target node denies access.
ECH Target node cannot respond because requested function is currently unavailable.
EDH PCCC Description: Resource is already available; condition already exists.
EEH PCCC Description: Command cannot be executed.
EFH PCCC Description: Overflow; histogram overflow.
F0H PCCC Description: No access.
F1H Local processor detects illegal target file type.
F2H PCCC Description: Invalid parameter; invalid data in search or command block.
F3H PCCC Description: Address reference exists to deleted area.
F4H PCCC Description: Command execution failure for unknown reason; PLC-3 histogram overflow.
F5H PCCC Description: Data conversion error.
F6H PCCC Description: The scanner is not able to communicate with a 1771 rack adapter. This could be due to the scanner not
scanning, the selected adapter not being scanned, the adapter not responding, or an invalid request of a “DCM BT (block
transfer)”.
F7H PCCC Description: The adapter is not able to communicate with a module.
F8H PCCC Description: The 1771 module response was not valid size, checksum, etc.
F9H PCCC Description: Duplicated Label.
FAH Target node cannot respond because another node is file owner (has sole file access).
FBH Target node cannot respond because another node is program owner (has sole access to all files).
FCH PCCC Description: Disk file is write protected or otherwise inaccessible (off-line only).
FDH PCCC Description: Disk file is being used by another application; update not performed (off-line only).
FFH Local communication channel is shut down.
Error Code Description of Error Condition
TIP
For 1770-6.5.16 DF1 Protocol and Command Set
Reference Manual users: The MSG error code reflects
the STS field of the reply to your MSG instruction.
•
Codes E0 to EF represent EXT STS codes 0 to F.
•
Codes F0 to FC represent EXT STS codes 10 to
1C.