Omron CP - PROGRAMMING MANUAL 05-2007 - Page 978

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Failure Diagnosis Instructions Section 3-28
Note The value of operand N must be different from the content of A529
(the system-generated FAL/FALS number).
Generating Fatal Errors from the System
The following table shows the function of the operands.
Note The value of operand N must be the same as the content of A529
(the system-generated FAL/FALS number).
Operand Specifications
Description FALS(007) generates a fatal error. FALS(007) can also be used to generate
fatal system errors as well as fatal user-defined errors. (A system error will be
generated if the value of N equals the content of A529.)
Generating Fatal User-defined Errors
When FALS(007) is executed with N set to an FALS number (1 to 511) that is
not equal to the content of A529 (the system-generated FAL/FALS number), a
fatal error will be generated with that FALS number and the following process-
ing will be performed:
1,2,3... 1. The FALS Error Flag (A401.06) will be turned ON. (PLC operation will
stop.)
Operand Function
N 1 to 511 (These FALS numbers are shared with FAL numbers.)
S Specifies the first of eight words containing an ASCII message to be
displayed on the CX-Programmer.
Specify a constant (0000 to FFFF) if a message is not required.
Operand Function
N 1 to 511 (These FALS numbers are shared with FAL numbers.)
S Error code that will be generated. (See Description below.)
S+1 Error details code that will be generated. (See Description below.)
Area N S
CIO Area --- CIO 0 to CIO 6143
Work Area --- W0 to W511
Holding Bit Area --- H0 to H511
Auxiliary Bit Area --- A0 to A959
Timer Area --- T0000 to T4095
Counter Area --- C0000 to C4095
DM Area --- D0 to D32767
Indirect DM addresses
in binary
--- @ D0 to @ D32767
Indirect DM addresses
in BCD
--- *D0 to *D32767
Constants Specified val-
ues only
#0000 to #FFFF (binary)
Data Registers ---
Index Registers ---
Indirect addressing
using Index Registers
--- ,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047
,IR15
DR0 to DR15, IR0 to IR15
,IR+(++)0 to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15