Mitsubishi MELSEC Q Series Programming Manual

App-149
8
8
8
8
A
6
7
8
Appendix3 SPECIAL RELAY LIST
(1) Diagnostic information
Number Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
M9
Corresponding
CPU
SM0 Diagnostic errors
OFF : No error
ON : Error
• This relay turns on if an error is detected by
diagnostics. (Also turns on if an error is
detected by an annunciator or the CHK
instruction.)
• This relay remains on even after the system
returns to normal.
S (Error)
New
Qn(H)
QnPH
QnPRH
• This relay turns on if an error is detected by
diagnostics. (Also turns on if an error is
detected by an annunciator.)
• This relay remains on even after the system
returns to normal.
Q00J/Q00/Q01
QnU
LCPU
SM1
Self-diagnostic
error
OFF : No self-diagnosis
errors
ON : Self-diagnosis
• This relay turns on if an error is detected by
self-diagnostics. (Remains off if an error is
detected by an annunciator or the CHK
instruction.)
• This relay remains on even after the system
returns to normal.
M9008
Qn(H)
QnPH
QnPRH
• This relay turns on if an error is detected by
self-diagnostics. (Remains off if an error is
detected by an annunciator.)
• This relay remains on even after the system
returns to normal.
New
Q00J/Q00/Q01
QnU
LCPU
SM5
Error common
information
OFF : No error common
information
ON : Error common
information
This relay turns on if error common information
data exists when SM0 turns on.
QCPU
LCPU
SM16
Error individual
information
OFF : No error
individual
information
ON : Error individual
information
This relay turns on if error individual
information data exists when SM0 turns on.
SM50 Error reset OFF→ON: Error reset Conducts error reset operation U
SM51 Battery low latch
OFF : Normal
ON : Battery low
• This relay turns on if the battery voltage of
the CPU module or the memory card drops
below the rated value.
• This relay remains on even after the battery
voltage returns to normal.
• Synchronizes with the BAT. LED.
S (Error)
M9007
Qn(H)
QnPH
QnPRH
QnU
LCPU
• This relay turns on if the battery voltage of
the CPU module drops below the rated
value.
• This relay remains on even after the battery
voltage returns to normal.
• Synchronous with the ERR. LED.
New Q00J/Q00/Q01
SM52 Battery low
OFF : Normal
ON : Battery low
• This relay has the same specifications as
those of SM51 except that this relay turns off
after the battery voltage returns to normal.
M9006
QCPU
LCPU

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English