Mitsubishi Electric QS001CPU User Manual page 196

12
TROUBLESHOOTING
Number Name
Diagnostics
SD27 error CPU
identifier
SD50 Error reset
Battery low
SD51
latch
SD52 Battery low
AC DOWN
SD53
detection
I/O module
SD61 verify error
number
Annunciator
SD62
number
Number of
SD63
annunciators
SD64
SD65
SD66
SD67
SD68
SD69
SD70
SD71
Table of
SD72
detected
annunciator
SD73
numbers
SD74
SD75
SD76
SD77
SD78
SD79
12
12.7 Special Register List
- 89
Table12.20 Special register
Meaning
• The identifier of the CPU module that issued the diagnostics
CPU identifier error (SD0 to SD26) is stored.
(CPU A/CPU B) 0001H : CPU A
0002H : CPU B
Error code to
• An error code to be cleared is stored.
be cleared
• All corresponding bits go 1(ON) when battery voltage drops.
Bit pattern • Subsequently, these remain 1(ON) even after battery voltage
indicating has been returned to normal.
where
b15
battery voltage
drop occurred
Bit pattern
indicating • Same configuration as SD51 above
where • Turns to 0 (OFF) when the battery voltage returns to normal
battery voltage thereafter.
drop occurred
Number of
• Every time the input voltage falls to or below 85% (AC power)
times
of the rating during calculation of the CPU module, the value
for AC DOWN
is incremented by 1 and stored in BIN code.
detection
I/O module
• The lowest I/O number of the module where the I/O module
verify error
verification error took place.
module number
Annunciator • The first annunciator number (F number) to be detected is
number stored here.
Number of
• Stores the number of annunciators searched.
annunciators
• When F goes ON due to
which go progressively ON from SD64 through SD79 are
registered.
• The F numbers turned OFF by
SD64 - SD79, and the F numbers stored after the deleted F
numbers are shifted to the preceding registers.
After 16 annunciators have been detected, detection of the
17th will not be stored from SD64 through SD79.
SET SET
F50 F25
SD62 0 50 50 50 50 50 50 50 50 50 50 50 99 (Number
Annunciator
SD63 0 1 2
detection
number
SD64 0 50 50 50 50 50 50 50 50 50 50 50 99
SD65 0 0 25 25 99 99 99 99 99 99 99 99 15
SD66 0 0 0 99 0 15 15 15 15 15 15 15 70
SD67 0 0 0
SD68 0 0 0
SD69 0 0 0
SD70 0 0 0
SD71 0 0 0
SD72 0 0 0
SD73 0 0 0
SD74 0 0 0
SD75 0 0 0
SD76 0 0 0
SD77 0 0 0
SD78 0 0 0
SD79 0 0 0
Explanation
to b1 b0
0
CPU module battery error
or , the F numbers
OUT F SET F
are deleted from
RST F
SET RST SET SET SET SET SET SET SET
F99 F25 F15 F70 F65 F38 F110 F151 F210
3 2 3 4 5 6 7 8 9
0 70 70 70 70 70 70 65
0 0
0 65 65 65 65 65 38
0 0 0
0 38 38 38 38 110
0 0 0 0
0 110 110 110 151
0 0 0 0 0
151 210
0 0 0 0 0 0 0 151
0 0 0 0 0 0 0 0 210
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
Set by
(When set)
S (Error)
U
S (Error)
S (Error)
S (Error)
S (Error)
S (Instruction
execution)
S (Instruction
execution)
RST
F50
detected)
(Number of
8
S (Instruction
annunciators
detected) execution)
(Number
detected)
0
0
0
0
0
0
0
0
Corresponding
CPU
QS