User Error Instructions: Failure Alarm And Reset - Fal(06) And Severe Failure Alarm - Fals; Step Instructions: Step Define And Step Start-Step(08)/Snxt; Step Define And Step Start-Step(08)/Snxt(09) - Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual

Step Instructions
7-13 User Error Instructions:
FAILURE ALARM AND RESET – FAL(06) and
SEVERE FAILURE ALARM – FALS(07)
FAL(06) N
Description
Resetting Errors
7-14 Step Instructions:
STEP DEFINE and STEP START–STEP(08)/SNXT(09)
Ladder Symbols
@FAL(06) N
FALS(07) N
FAL(06) and FALS(07) are provided so that the programmer can output error
numbers for use in operation, maintenance, and debugging. When executed
with an ON execution condition, either of these instructions will output a FAL
number to bits 00 to 07 of SR 253. The FAL number that is output can be be-
tween 01 and 99 and is input as the definer for FAL(06) or FALS(07). FAL(06)
with a definer of 00 is used to reset this area (see below).
FAL Area
25307
FAL(06) produces a non-fatal error and FALS(07) produces a fatal error. When
FAL(06) is executed with an ON execution condition, the ALARM/ERROR indi-
cator on the front of the CPU Unit will flash, but PC operation will continue. When
FALS(07) is executed with an ON execution condition, the ALARM/ERROR indi-
cator will light and PC operation will stop.
The system also generates error codes to the FAL area.
FAL error codes will be retained in memory, although only one of these is avail-
able in the FAL area. To access the other FAL codes, reset the FAL area by
executing FAL(06) 00. Each time FAL(06) 00 is executed, another FAL error will
be moved to the FAL area, clearing the one that is already there.
FAL(06) 00 is also used to clear message programmed with the instruction,
MSG(46).
If the FAL area cannot be cleared, as is generally the case when FALS(07) is
executed, first remove the cause of the error and then clear the FAL area through
the Programming Console or SSS.
Ladder Symbols
STEP(08) B
SNXT(09) B
1
X10
STEP(08)
Section 7-14
Definer Data Areas
N: FAL number
# (00 to 99)
N: FAL number
# (01 to 99)
25300
0
X10
Definer Data Areas
B: Control bit
IR, AR, HR, LR
B: Control bit
IR, AR, HR, LR
385