ELC500 Control unit
179
Device No.
name
Description
SD30
SD card access instruction execution
result
Error codes while the SD card access instruction is executed
are stored.
SD50
Calendar timer (year)
Saves year, month, day, hour, minute, second and
day-of-the-week data of the calendar timer as 16-bit binary
data. The built-in calendar timer will operate correctly through
the year 2099 and support leap years. The calendar timer can
be set (time synch) by writing desired values using the
programming tool or a program based on calendar setting
instruction (TIMEWT).
SD51
Calendar timer (month)
SD52
Calendar timer (day)
SD53
Calendar timer (hour)
SD54
Calendar timer (minute)
SD55
Calendar timer (second)
SD56
Calendar timer
(day-of-the-week)
SD60
Total ON number of error alarm relays
Saves the total number of error alarm relays that are on. (Max.
4096 relays) By specifying SD60 in RST instruction, all data in
the error alarm buffer can be cleared.
SD61
No.1 error alarm relay
that turned on
Saves the number of the error alarm relay that turned on in the
first place (No.1).
By specifying SD61 in RST instruction, all data in the error
alarm buffer can be cleared.
SD62
～
SD79
No.2 to No.19 error alarm relays
that turned on
Saves the numbers of the error alarm relays that turned on. By
specifying the device number in RST instruction, all data of the
relevant relay(s) in the error alarm buffer can be cleared.
Device numbers of system data registers SDs and error alarm
relays correspond as follows.
Device No.
Error alarm relay
SD62
No.2
SD63
No.3
SD64
No.4
SD65
No.5
SD66
No.6
SD67
No.7
SD68
No.8
SD69
No.9
SD70
No.10
SD71
No.11
SD72
No.12
SD73
No.13
SD74
No.14
SD75
No.15
SD76
No.16
SD77
No.17
SD78
No.18
SD79
No.19
SD80
For
error
alarm
relay
Calendar timer (year)
Saves time when the error alarm relay saved in SD61 turned
on.
SD81
Calendar timer (month)
SD82
Calendar timer (day)
SD83
Calendar timer (hour)
SD84
Calendar timer (minute)
SD85
Calendar timer (second)
