214
APPX
Appendix 6 Special Register List
Diagnostic information
The special registers for diagnostics information are as follows.
No.
Name
Content
Details
Set by (when to set)
SD0
Latest self-
diagnostic error
code
Latest self-
diagnostic error
code
Error codes are stored in hexadecimal when an error is detected with the
diagnostics.
• The same information as the latest information displayed on the error
history is displayed.
S (at error occurrence)
SD1
Self-diagnostic error
occurrence time
Self-diagnostic error
occurrence time
The year (four digits) when SD0 data was updated is stored as a BIN
code.
S (at error occurrence)
SD2
The month when SD0 data was updated is stored as a BIN code .
SD3
The date when SD0 data was updated is stored as a BIN code.
SD4
The hour when SD0 data was updated is stored as a BIN code.
SD5
The minute when SD0 data was updated is stored as a BIN code.
SD6
The second when SD0 data was updated is stored as a BIN code.
SD7
The day of the week when SD0 data was updated is stored as a BIN
code. (0: Sun, 1: Mon, 2: Tue, 3: Wed, 4: Thu, 5: Fri, 6: Sat)
SD10
Self-diagnostic error
code
Self-diagnostic error
code 1
Up to 16 types of error codes are stored to SD10 and higher when the
diagnostics detects errors. (The same error code as the one already
stored in SD10 and higher is not stored.) The 17th and succeeding error
codes are not stored, in addition to the case that 16 types of error codes
have already been stored to SD10 to SD25.
S (at error occurrence)
SD11
Self-diagnostic error
code 2
SD12
Self-diagnostic error
code 3
SD13
Self-diagnostic error
code 4
SD14
Self-diagnostic error
code 5
SD15
Self-diagnostic error
code 6
SD16
Self-diagnostic error
code 7
SD17
Self-diagnostic error
code 8
SD18
Self-diagnostic error
code 9
SD19
Self-diagnostic error
code 10
SD20
Self-diagnostic error
code 11
SD21
Self-diagnostic error
code 12
SD22
Self-diagnostic error
code 13
SD23
Self-diagnostic error
code 14
SD24
Self-diagnostic error
code 15
SD25
Self-diagnostic error
code 16
SD53
AC/DC DOWN
Number of times for
AC/DC DOWN
detection
A value is incremented by one each time when input voltage drops to 85%
(AC power)/65% (DC power) or less of the rated value while the CPU
module is in operation, and stores it as a BIN code. A counting cycle from
0
→
65535
→
0 is repeated.
S (at error occurrence)
SD60
Number of module
with blown fuse
Number of module
with blown fuse
The lowest I/O number of module in which a fuse blew is stored.
S (at error occurrence)
SD61
I/O module verify
error module
number
I/O module verify
error module
number
The lowest I/O number of the module in which an I/O module verification
error has been detected is stored.
S (at error occurrence)
Summary of Contents for MELSEC iQ-R C R12CCPU-V
Page 1: ...MELSEC iQ R C Controller Module User s Manual Application R12CCPU V ...
Page 2: ......
Page 23: ...1 EXECUTING PROGRAMS 1 3 I O Access Timing 21 1 MEMO ...
Page 32: ...30 3 MEMORY CONFIGURATION OF C Controller Module 3 4 Files MEMO ...
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