APPX
Appendix 5 List of Special Register Areas
669
A
Diagnostic information
The following is the list of special register areas relating to the diagnostic information.
No. Name Data stored Details Set by
(setting
timing)
SD0 Latest self
diagnostics error
code
Latest self diagnostics error
code
Error codes are stored in a hexadecimal value when the diagnostics
detects an error.
S (Error)
SD1 Latest self-
diagnostics error
time
Latest self-diagnostics error
time
The year value (four digits) of the date/time when SD0 data was
updated is stored as a BIN code.
S (Error)
SD2 The month value of the date/time when SD0 data was updated is
stored as a BIN code.
SD3 The day value of the date/time when SD0 data was updated is
stored as a BIN code.
SD4 The hour value of the date/time when SD0 data was updated is
stored as a BIN code.
SD5 The minute value of the date/time when SD0 data was updated is
stored as a BIN code.
SD6 The second value of the date/time when SD0 data was updated is
stored as a BIN code.
SD7 The day of the week value of the date/time 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 number
Self-diagnostic error number 1 The maximum of 16 types of error codes are stored into SD10
onwards when the diagnostics detects an error (The same error
code as one already stored in SD10 onwards is not stored). The
17th error code onwards are not stored. Also error codes are not
stored when 16 types of error codes have already been stored into
SD10 to SD25.
S (Error)
SD11 Self-diagnostic error number 2
SD12 Self-diagnostic error number 3
SD13 Self-diagnostic error number 4
SD14 Self-diagnostic error number 5
SD15 Self-diagnostic error number 6
SD16 Self-diagnostic error number 7
SD17 Self-diagnostic error number 8
SD18 Self-diagnostic error number 9
SD19 Self-diagnostic error number 10
SD20 Self-diagnostic error number 11
SD21 Self-diagnostic error number 12
SD22 Self-diagnostic error number 13
SD23 Self-diagnostic error number 14
SD24 Self-diagnostic error number 15
SD25 Self-diagnostic error number 16
SD49 Error detection
invalidation
setting
*1
Error detection invalidation
setting
Specify a function for which detection of continuation errors is
invalidated. (On: Invalidate (do not detect an error), Off: Do not
invalidate (detect an error))
b0: Built-in Ethernet port communication error
U
SD53 AC/DC DOWN The number of AC/DC DOWN
detections
The value of this register increments by one and stored as a BIN
code, each time input voltage drops to 85% (AC power)/65% (DC
power) or less of the nominal value while the CPU module is
carrying out an operation. A counting cycle from 0 to 65535 to 0 is
repeated. (In a redundant system with redundant extension base
unit, if a momentary power failure occurs in a module on an
extension base unit, counting will be performed in both systems.)
S (Error)
b0
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