437
Operating Errors Section 8-5
The FAL numbers can be set arbitrarily to indicate particular conditions. The
same number cannot be used as both an FAL number and an FALS number.
To clear an FAL error, correct the cause of the error, execute FAL 00, and then
clear the error using the Programming Console.
SEVERE FAILURE ALARM
– FALS(07)
FALS(07) is an instruction that causes a fatal error. Refer to page 209 for
details. The following will occur when an FALS(07) instruction is executed:
1,2,3... 1. Program execution will be stopped and outputs will be turned OFF.
2. The ERR/ALM indicator on the CPU Unit will be lit.
3. The instruction’s 2-digit BCD FALS number (01 to 99) will be written to
SR 25300 to SR 25307.
4. The FALS number will be recorded in the PC’s error log area. In CQM1
PCs, the time of occurrence will also be recorded if a Memory Cassette
with a clock (RTC) is used.
The FALS numbers can be set arbitrarily to indicate particular conditions. The
same number cannot be used as both an FAL number and an FALS number.
To clear an FALS error, switch the PC to PROGRAM Mode, correct the cause
of the error, and then clear the error using the Programming Console.
FAILURE POINT DETECT
– FPD(––)
In CQM1 PCs, non-fatal errors and error messages can also be generated
using FPD(––). Refer to page 330 for details.
8-5 Operating Errors
There are two kinds of operating errors, non-fatal and fatal. PC operation
will continue after a non-fatal error occurs, but operation will be stopped if
a fatal error occurs.
!Caution Investigate all errors, whether fatal or not. Remove the cause of the error as
soon as possible and restart the PC. Refer to the CQM1 Operation Manual or
CPM1 Operation Manual for hardware information and Programming Console
operations related to errors. Refer to the SSS Operation Manual for SSS oper-
ations related to errors.
8-5-1 Non-fatal Errors
PC operation and program execution will continue after one or more of these
errors have occurred. Although PC operation will continue, the cause of the
error should be corrected and the error cleared as soon as possible.
When one of these errors occurs, the POWER and RUN indicators will remain
lit and the ERR/ALM indicator will flash.
To Next Page
Loading...
Need help?
General
