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(1) Diagnostic Information
Number
Name
OFF : No error
SM0
Diagnostic errors
ON : Error
OFF : No self-diagnosis
SM1
Self-diagnostic error
ON : Self-diagnosis
OFF : No error common
Error common
SM5
information
ON : Error common
OFF : No error individual
Error individual
SM16
information
ON : Error individual
SM50
Error reset
OFF
OFF : Normal
SM51
Battery low latch
ON : Battery low
OFF : Normal
SM52
Battery low
ON : Battery low
OFF : AC/DC DOWN not
AC/DC DOWN
SM53
detection
ON : AC/DC DOWN
Table12.2 Special relay
Meaning
• Turns ON if an error occurs as a result of diagnosis.
(Includes when an annunciator is ON, and when an
error is detected with CHK instruction)
• Remains ON even if the condition is restored to
normal thereafter.
• Turns ON if an error occurs as a result of diagnosis.
(Includes when an annunciator is ON)
• Remains ON even if the condition is restored to
normal thereafter.
• Turns ON if an error occurs as a result of diagnosis.
(Does not include when an annunciator is ON or
when an error is detected by the CHK instruction)
• Remains ON even if the condition is restored to
normal thereafter.
errors
• Turns ON if an error occurs as a result of diagnosis.
(Does not include when an annunciator is ON)
• Remains ON even if the condition is restored to
normal thereafter.
information
• When SM0 is ON, turns ON if there is error common
information
information
information
• When SM0 is ON, turns ON if there is error individual
information
information
• Conducts error reset operation
ON: Error reset
• Turns ON if battery voltage at CPU module or
memory card drops below rated value.
• Remains ON even if the battery voltage returns to
normal thereafter.
• Synchronizes with the BAT. LED.
• Turns ON if battery voltage at CPU module drops
below rated value.
• Remains ON even if the battery voltage returns to
normal thereafter.
• Synchronous with ERR. LED
• Same as SM51, but turns OFF subsequently when
battery voltage returns to normal.
• Turns ON if an instantaneous power failure of within
20ms occurs during use of the AC power supply
module.
Reset when the power supply is switched OFF, then
ON.
detected
• Turns ON if an instantaneous power failure of within
detected
10ms occurs during use of the DC power supply
module.
Reset when the power supply is switched OFF, then
ON.
CHAPTER12 SPECIAL RELAY LIST AND SPECIAL REGISTER LIST
Explanation
(When Set)
Corres-
Set by
ponding
Corresponding
ACPU
CPU
M9
Qn(H)
S (Error)
New
QnPH
QnPRH
Q00J/Q00/Q01
S (Error)
New
QnU
Qn(H)
S (Error)
M9008
QnPH
QnPRH
Q00J/Q00/Q01
S (Error)
New
QnU
S (Error)
New
QCPU
S (Error)
New
U
New
Qn(H)
QnPH
S (Error)
M9007
QnPRH
QnU
S (Error)
New
Q00J/Q00/Q01
S (Error)
M9006
QCPU
S (Error)
M9005
12 - 2
1
2
3
12
6
7
8
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