944
Failure Diagnosis Instructions Section 3-28
3-28-2 SEVERE FAILURE ALARM: FALS(007)
Purpose Generates user-defined fatal errors. Fatal errors stop PLC operation.
Ladder Symbol • Generating User-defined Fatal Errors
• Generating Fatal System Errors
Variations
Applicable Program Areas
Operands Generating User-defined Fatal Errors
The following table shows the function of the operands.
MOV
#000A
A529
000AA529
S : D200
D201
0200
0001
0.00
FAL
10
D200
N
S
Error code: 0200 (CPU Bus Unit Error)
Matching
values
Error unit number: 1
FALS(007)
N
S
N: FALS number
S: First message word or
constant (0000 to FFFF)
FALS(007)
N
S
N: FALS number (value in A529)
S: First word containing the error
code and error details
Variations Executed Each Cycle for ON Condition FALS(007)
Executed Once for Upward Differentiation Not supported.
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
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