2 Functions of Devices in DVP-PLC
DVP-PLC Application Manual
2-72
1. All PLC MPUs provide four different clock pulses. When PLC is powered, the four clock pulses will start
automatically.
M1011 (10 ms)
M1012 (100 ms)
M1013 (1 sec)
M1014 (60 sec)
100 Hz
10 Hz
1 Hz
10 ms
100 ms
1 sec
1 min
2. The clock pulses also start when PLC is in STOP status. The activation timing of clock pulses and that of RUN
will not happen synchronously.
Function Group
High-Speed Timer
Number
M1015, D1015
Contents:
1. The steps for using special M and special D directly:
a) High-speed counter is valid only when PLC is in RUN status for EH/EH2/SV, but is valid when PLC is in
RUN or STOP stauts for SA/SX/SC.
b) M1015 = On: High-speed counter D1015 is enabled only whtn PLC scans to END instruction. (Min. timing
unit of D1015: 100us)
c) Timing range of D1015: 0~32,767. When the timing reaches 32,767, the next timing restarts from 0.
d) M1015 = Off: D1015 stops timing immediately.
2. EH/EH2/SV series MPU offers high-speed timer instruction HST. See API 196 HST for more details.
3. Example:
a) When X10 = On, M1015 will be On. The high-speed timer will start to time and record the present value in
D1015.
b) When X10 = Off, M1015 will be Off. The high-speed timer will be disabled.
X10
M1015
Function Group
Real Time Clock
Number
M1016, M1017, M1076, D1313 ~ D1319
Contents:
1. Special M and special D relevant to RTC
No. Name Function
M1016 Year (in A.D.) in RTC
Off: display the last 2 digits of year in A.D.
On: display the last 2 digits of year in A.D. plus 2,000
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