User-Defined Errors - Omron CPM2C-S100C Operation Manual

Self-diagnostic Functions
Error Messages
Error Flags
Error Code
!WARNING
!WARNING
9-2-2

User-defined Errors

FAILURE ALARM –
FAL(06)
1,2,3...
SEVERE FAILURE ALARM
– FALS(07)
1,2,3...
204
RS-232C Port Error
When an error occurs in communications through the RS-232C port, the
COMM indicator will be OFF and the RS-232C Communications Error Flag
(AR 0804) will be ON. Check the cables and restart communications.
Peripheral Port Error
When an error occurs in communications through the peripheral port, the
COMM indicator will be OFF and the Peripheral Port Communications Error
Flag (AR 0812) will be ON. Check the cables and restart communications.
When an error is detected, a corresponding error message will be displayed
on the Programming Console or other Programming Device connected to the
PC.
When a hardware error is detected, the corresponding error flag in the AR or
SR area will be turned ON.
When an error is detected, a specific 2-digit hexadecimal error code is output
to SR 25300 to SR 25307. The error code and time of occurrence are also
output to the Error Log Area (DM 2000 to DM 2021).
Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits (i.e., not in the Pro-
grammable Controller) to ensure safety in the system if an abnormality occurs
due to malfunction of the PC or another external factor affecting the PC oper-
ation. Not providing proper safety measures may result in serious accidents.
The PC will turn OFF all outputs when its self-diagnosis function detects any
error or when a severe failure alarm (FALS) instruction is executed. External
safety measures must be provided to ensure safety in the system. Not provid-
ing proper safety measures may result in serious accidents.
There are three instructions that can be used to define errors or messages.
FAL(06) causes a non-fatal error, FAL(07) causes a fatal error, and MSG(46)
sends a message to the Programming Console or host computer connected
to the PC.
FAL(06) is an instruction that causes a non-fatal error. The following will occur
when an FAL(06) instruction is executed:
1. The ERR/ALM indicator on the CPU Unit will flash. PC operation will con-
tinue.
2. The instruction's 2-digit BCD FAL number (01 to 99) will be written to
SR 25300 to SR 25307.
The FAL numbers can be set arbitrarily to indicate particular conditions, but
the same number should not be used as both an FAL number and an FALS
number.
To clear an FAL error, correct the cause of the error and then execute FAL 00
or use a Programming Device to clear the error.
FALS(07) is an instruction that causes a fatal error. The following will occur
when an FALS(07) instruction is executed:
1. Program execution will be stopped and all outputs will be turned OFF.
2. The ERR/ALM indicator on the CPU Unit will be lit.
Section 9-2