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5-4SectionError Processing
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FALS(07) is an instruction that causes a fatal error. 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 indicator on the SRM1 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. The
same number cannot be used as both an FAL number and an FALS number.
To clear an FALS error, switch the SRM1 to PROGRAM Mode, correct the cause
of the error, and then clear the error using the Programming Console.
MESSAGE – MSG(46) MSG(46) is used to display a message on the Programming Console. The mes-
sage, which can be up to 16 characters long, is displayed when the instruction’s
execution condition is ON.
5-4-5 Reading/Clearing Error Messages
This operation is used to display and clear error messages. It is possible to dis-
play and clear non-fatal errors and MESSAGE instruction messages in any
mode, but fatal errors can be displayed and cleared in PROGRAM mode only.
RUN MONITOR PROGRAM
OK OK OK
Before inputting a new program, any error messages recorded in memory
should be cleared. It is assumed here that the causes of any of the errors for
which error messages appear have already been taken care of. If the buzzer
sounds when an attempt is made to clear an error message, eliminate the
cause of the error, and then clear the error message. (Refer to 5-7 Trouble-
shooting Flowcharts for troubleshooting information.)
Key Sequence Follow the procedure below to display and clear messages.
1, 2, 3... 1. Press the CLR Key to bring up the initial display.
2. Press the FUN and then the MONTR Key to begin the operation. If there are
no messages, the following display will appear:
AND
MONTR
ERR/MSG CHK OK
If there are messages, the most serious message will be displayed when the
MONTR Key is pressed. Pressing MONTR again will clear the present mes-
sage and display the next most serious error message. Continue pressing
MONTR until all messages have been cleared. These are some examples
of error messages:
A memory error:
MONTR
MEMORY ERR
A system error:
MONTR
SYS FAIL FAL01
A message:
MONTR
MATERIAL USED UP
All messages cleared:
MONTR
ERR/MSG CHK OK
SEVERE FAILURE ALARM –
FALS(07)