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6.21.2LED indication priority
This section describes a priority for error messages stored in the LED display data (SD220 to SD227) in case of an
error.
(1) Displayed error messages and their priorities
In case of multiple errors, the error messages are displayed with the following conditions.
• A stop error is always set to the LED display data (SD220 to SD227).
• An operation continuation error is displayed according to the priority cause number described in this section.
The priority can be changed (set it to the special registers SD207 to SD209).
• When errors having the same priority occur simultaneously, the error detected first is displayed.
The priority is determined with the special registers SD207 to SD209 as follows.
Figure 6.85 Special registers and bit structure regarding a priority
Cause number setting area
Cause number setting area
Priority 4 Priority 3 Priority 2 Priority 1
Priority 8 Priority 7 Priority 6 Priority 5
Priority 10 Priority 9
15 to 12 11 to 8 7 to 4 3 to
to to to to
to to to to
SD207
SD208
SD209
Ignored
Ignored
SD207
SD208
SD209
15 to
0000
0700
0000
Cause number setting area
Cause number setting area
Priority 4 Priority 3 Priority 2 Priority 1
Priority 8 Priority 7 Priority 6 Priority 5
Priority 10 Priority 9
15 12 11 8 7 4 3
SD207
SD208
SD209
SD207
SD208
SD209
15 to
4321
8765
00A9
Priority 4 Priority 3 Priority 2 Priority 1
Priority 8 Priority 7
Priority 11
Priority 6 Priority 5
Priority 10 Priority 9
15 12 11 8 7 4 3
SD207
SD208
SD209
Ignored
SD207
SD208
SD209
15 to
4321
07 6 5
0B09
Redundant CPU
Basic model QCPU
0 bit
Cause number setting area
Default value of cause number
0 bit
0 bit
Default value of cause number
High Performance model QCPU and Process CPU
0 bit
Cause number setting area
0 bit
Cause number setting area
Cause number setting area
Cause number setting area
0 bit
Default value of cause number
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