Function Blocks
PTMR Periodic Timer Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 297
2/07
PTMR Periodic Timer Function Block
Description
The PTMR label stands for Periodic Timer.
This block is part of the
Counters/Timers category.
Function (1 or 2)
4. Time/Cycle: Generates a discrete output pulse at a specified start time based on the real-time clock and at
specified time periods thereafter.
Start Times = Month, Day, Hour, Minute, Second
Cycle Periods = Monthly, Weekly, Daily
Time Cycle Periods Within a Day = Hours (0-23) Minutes (0-59) Seconds (0-59)
NOTE: Once started, period repeats until reset.
5.
Reset Cycle: Generates a digital output based on a digital input and at regular intervals thereafter.
Time Start = ON to OFF transition of reset input.
Cycle Time Period = Hours (0-23) Minutes (0-59) Seconds (0-59)
Input
RST
= Reset/Enable (ON = Output disable, OFF = Output enable)
Output
EVENT
= OUT Logic State. Output turns ON for one scan cycle when elapsed time matches setpoint time
(One-shot).
Block properties
Double click on the function block to access the function block properties dialog box.
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