Mitsubishi Electric MELIPC MI5000 Series User Manual page 260

Appendix 6
The list of special registers contains the following information.
Item
No.
Name
Content
Details
Set by
Do not change the special registers which are to be set by the system using operations such as program
execution and device test. Doing so may result in system failure or disconnection of communication.
No. Name
SD0 Latest self-diagnostic
error code
SD1 Self-diagnostic error
occurrence time
SD2
SD3
SD4
SD5
SD6
SD7
SD10 to Self-diagnostic error
SD25 code 1 to 16
SD53 AC/DC DOWN
SD80 Detailed information 1
information category
APPX
258
Appendix 6 List of Special Registers
List of Special Registers
Description
Indicates the number of the special register.
Indicates the name of the special register.
Indicates the content of the special register.
Indicates the details of the special register.
Indicates the timing to set each device by system and/or user.
■Set by
• S: Set by system.
■When to set
• Initial: Data is set only when initial processing is performed (e.g. powering ON the system, changing the operating
status from STOP to RUN).
• Status change: Set only when the status is changed (by a special relay).
• Error occurrence: Set when an error occurs.
• Switch status change: Set when the status of a switch is changed.
Content Details
Latest self-diagnostic Error codes are stored in hexadecimal when an error is detected with
error code the diagnostics.
Latest self-diagnoses The year (four digits) when SD0 data was updated is stored as a BIN
error time (local time) code.
The month when SD0 data was updated is stored as a BIN code .
(Year: 1980 to 2079)
The date when SD0 data was updated is stored as a BIN code.
(Month: 1 to 12)
The hour when SD0 data was updated is stored as a BIN code.
(Day: 1 to 31)
The minute when SD0 data was updated is stored as a BIN code.
(Hour: 0 to 23)
The second when SD0 data was updated is stored as a BIN code.
(Minute: 0 to 59)
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)
Self-diagnostic error A maximum of 16 types of error codes are stored from SD10 onwards
code 1 to 16 when a diagnosis detects an error. (The same error code as one already
stored from SD10 onwards is not stored). The 17th error code and later
error codes are not stored.
Also error codes are not stored when 16 types of error codes have
already been stored into SD10 to SD25.
Number of times for This value increases by one each time input voltage drops to 85% (AC
AC/DC DOWN power) or less of the nominal value while the MELIPC is carrying out an
detection operation. The value is stored by BIN code. The counter changes from 0
through 65,535, and then back to 0.
Detailed information 1 Detailed information 1 information category code is stored.
information category The following codes are stored into the information category code.
code • 0: N/A
• 1: N/A
• 2: Drive number and file name
• 4: Parameter information
• 5: System configuration information
• 6: Frequency information
• 24: Failure information
• 4100: Parameter information
Set by (when to
set)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)
S (at error
occurrence)