950
Failure Diagnosis Instructions Section 3-28
4. The ERR Indicator on the CPU Unit will be lit.
5. The ASCII message in D100 to D107 will be displayed at the Programming
Device. (If a message is not required, specify a constant for S.)
Generating a Non-fatal System Error
When CIO 0.00 is ON in the following example, FALS(007) will generate a Too
Many I/O Points Error (too many CPM1A Expansion Units/Expansion I/O
Units). In this case, dummy FAL number 10 is used and the corresponding
value (000A hex) is stored in A529.
1,2,3... 1. The specified error code (80E1) will be written to A400 if it is the most se-
rious error.
2. The error code and the time/date that the error occurred will be written to
the Error Log Area (A100 through A199).
3. The Too Many I/O Points Flag (A401.11) will be turned ON.
4. The CPU Unit’s ERR Indicator will light and PLC operation will stop.
5. A message (TOO MANY I/O PNT) will be displayed at the CX-Programmer
indicating that a Too Many I/O Points Error has occurred.
MESSAGE
LOW VOLTAGE
4C 4F
57 20
56 4F
4C 54
41 47
45 00
31
M
0.00
D100
M: D100
D101
D102
D103
D104
D105
D106
D107
000AA529
S:D200
D20
1
80E1
6000
FALS
10
D200
0.00
N
S
MOV
#000A
A529
Error code: 80E1 (Too Many I/O Points Error)
Matching
values
Too many CPM1A Units
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