Mitsubishi Electric MELDAS C6 Interface Manual page 326

6.5 Explanation of Special Relay/Register Signals (Data Type: SM**, SD**)
B con-
Signal name
tact
SEQUENCER SYSTEM
—
CLOCK/COUNTER
[Function]
The system clock/counter of sequencer can be read.
[Operation]
Signal
SM32 Always ON
SM33 Always OFF
After Run, turned
SM34
ON by only 1 scan
After Run, turned
SM35
OFF by only 1 scan
SM36 0.1-second clock
SM37 0.2-second clock
SM38 1-second clock
SM39 2-second clock
SM40 2n-second clock
SD34 1-second counter
SD35 Scan counter
SD40 2n-second clock set
6. EXPLANATION OF INTERFACE SIGNALS
Signal
abbreviation
Name Operation
ON
OFF
ON
OFF
ON
OFF
ON
OFF
0.05 s
0.05 s
0.1 s
0.1 s
0.5 s
0.5 s
1 s
1 s
n s
n s
Count Nos. of
1 second unit
Count Nos. by
1 scan
2n-second clock
unit
1st system
SM32~SM40
SD34, SD35,
SD40
Operation details
•
Always ON
•
Always OFF
1 scan
•
After RUN, turned ON by only 1 scan.
•
After RUN, turned OFF by only 1
1 scan
scan.
•
ON/OFF is repeated by the specified
time.
•
The clock operation is continued
even in STOP.
•
Starts from OFF at the power OFF or
the reset.
•
ON/OFF is repeated according to the
specified second.
•
After sequencer CPU RUN, 1 is
added by a second.
•
With the count, 0→32767→-32768→
0 is repeated.
•
After sequencer CPU RUN, 1 is
added by 1 scan.
•
With the count, 0→32767→-32768→
0 is repeated.
•
Stores the n of 2n-second clock. (The
default is 30.)
•
The setting range is from 1 to 32767.
6-5-3
2nd system 3rd system
— —
Every time
END
Every time
END
Every time
END
Every time
END
Every time
END
Set time
State
change
State
change