Mitsubishi Electric MELSEC iQ-R Series - Special Registers

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2. DETAILS OF MIGRATION FROM Q17nCPUN(-T) TO RnMTCPU
2.3.3 Special registers
Device No.
Name Remarks
Q17nCPUN(-T)
Device assignment
for D9000 to D9255
RnMTCPU
D9000 SD2000 − Fuse blown No.
D9005 SD2005 SD53 AC/DC DOWN counter No.
D9008 SD2008 SD0 Latest self-diagnostic error code
Error codes for errors found by
diagnosis are stored as hexadecimal
notation data.
D9010 SD2010
SD1
Clock time for diagnostic error
occurrence (Year (four digits))
The clock time information that SD0
data was updated is stored as BIN code.
SD2
Clock time for diagnostic error
occurrence (Month)
D9011 SD2011
SD3
Clock time for diagnostic error
occurrence (Day)
SD4
Clock time for diagnostic error
occurrence (Hour)
D9012 SD2012
SD5
Clock time for diagnostic error
occurrence (Minute)
SD6
Clock time for diagnostic error
occurrence (Second)
− − SD7
Clock time for diagnostic error
occurrence (Day of week)
D9013 SD2013 SD80
Detailed information 1
information category
D9014 SD2014
SD81 to
SD111
Detailed information 1
− − SD112
Detailed information 2
information category
− −
SD113 to
SD143
Detailed information 2
D9015 SD2015 SD203 Operating status of CPU
D9017 SD2017 SD520 Scan time
D9019 SD2019 SD521 Maximum scan time
D9025 SD2025
SD210 Clock data (Year (four digits))
The clock data is stored as BIN code.
SD211 Clock data (Month)
D9026 SD2026
SD212 Clock data (Day)
SD213 Clock data (Hour)
D9027 SD2027
SD214 Clock data (Minute)
SD215 Clock data (Second)
D9028 SD2028 SD216 Clock data (Day of week)
D9060 SD2060 − Diagnostic error reset error No. Errors are reset by SM50.
− − SD228 Number of CPU modules New device in RnMTCPU
D9061 SD2061 SD229 Multiple CPU No.
D9104 SD2104 SD805
Servo parameter read request
Axis No.
D9182 SD2182 −
Test mode request error
These error code storage devices are
integrated in “Latest self diagnostics
error (SD0)”.
D9183 SD2183 −
D9184 SD2184 SD512 Motion CPU WDT error cause