User guide

Troubleshooting and Maintenance
210
890 USE 108 00 August 2001
PLC Codes
PLC Error Codes A 984 PLC, the Compact contains a set of 17 error codes. If the PLC stops, the error
code(s) are displayed on your panel screen.
This table provides information about the seventeen Stopped PLC Error Codes of
the Compact Controller.
Stopped error states of various controller nodes may be sent over the Modbus Plus
network using Modbus function 11 hex. Refer to the Modbus Plus Network Planning
and Installation Guide (890USE10000).
Stop Bits Mnemonic Description
0x7FFF PCSICK Controller unhealthy
0x8000 PCSTOPPED Controller stopped
0x4000 BADTCOP Bad I/O traffic cop table
0x2000 DIMAWAR Controller in DIM AWARENESS state
0x1000 PORTIVENT Bad port intervention
0x0800 BADSEGSCH Bad segment scheduler
0x0400 SONNOTIST Start of network (SON) did not start segment
0x0200 PDCHEKSUM Bad power-down checksum
0x0100 NOEOLDOIO No EOL detected; Bad Network
0x0080 WDTEXPIRE Watchdog timer has expired
0x0040 RTCFAILED Real time clock failure
0x0020 BADOXUSED Bad coil used table
0x0010 PABCOMMERR CPU to I/O Communication Failure
0x0008 NODETYPE Illegal node type used
0x0004 ULCSUMERR User logic checksum error
0x0002 DSCRDISAB Discrete disable error
0x0001 BADCONFIG Bad configuration table
Note: Some errors may appear together, i.e. 8200. Refer to status word for exact
bit structure of stop code.