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General => Technical support => Topic started by: RikiTiki on September 22, 2009, 01:31:04 PM

Title: Multiple output for event schedule
Post by: RikiTiki on September 22, 2009, 01:31:04 PM

The following event schedule works great for output1, however, I'm having difficulties finding a way to have a second output (OUT2) turn on simultaiously but only for 30 seconds.
IF TIME[1]=4 AND TIME[2]=0
     SETIO OUT1
ELSE
     IF TIME[1]=4 AND TIME[2]=30
     CLRIO OUT1
     ENDIF
ENDIF

Title: Re:Multiple output for event schedule
Post by: garysdickinson on September 22, 2009, 06:44:56 PM

You can use ladder logic to create OUT2 so that it is ON for the first 30 seconds that OUT1 is ON.

You can use a TIMER with a Set Value of 300 (30 seconds) to generate OUT2 from OUT1.

In the following example, Tmr30Sec is a TIMER with a SV of 300:


   Out1                                  Tmr30Sec
----||------------------------------------(TIM)

   Out1   Tmr30Sec                        Out2
----||------|/|---------------------------(OUT)



There is sample code posted on the TRI website that demonstrates how to set/clear many relays based on the current time.  I use this code in all of my PLC projects and it is 100% reliable.

http://www.tri-plc.com/trilogi/RTCAppByGDK.zip

Gary D.