User-Defined Errors - Omron SYSMAC CPM2B Operation Manual

Self-diagnostic Functions
Error Messages
Error Flags
Error Code
!WARNING
8-3-2

User-defined Errors

FAILURE ALARM –
FAL(06)
1,2,3...
SEVERE FAILURE ALARM
– FALS(07)
1,2,3...
MESSAGE – MSG(46)
164
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
When an error is detected, a corresponding error message will be displayed
on the Programming Console or other Programming Device connected to the
PLC.
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).
When the CPM2B's self-diagnosis function detects a fatal error or when a
severe failure alarm (FALS) instruction is executed, PLC operation will stop
and all outputs will be turned OFF. External safety measures must be pro-
vided to ensure safety in the system. Not providing 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 PLC.
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 indicator on the CPU Board will flash. PLC operation will contin-
ue.
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 indicator on the CPU Board will be lit.
3. The instruction's 2-digit BCD FALS number (01 to 99) will be written to
SR 25300 to SR 25307.
The FALS 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 FALS error, use a Programming Device to switch the PLC to PRO-
GRAM Mode, correct the cause of the error, and then clear the error.
MSG(46) is used to display a message on a Programming Device connected
to the CPM2B. The message, which can be up to 16 characters long, is dis-
played when the instruction's execution condition is ON.
Section 8-3