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correct syntax to call TON

Created by: William Ratcliffe at: 9/12/2014 11:38 AM (5 Replies)

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9/12/2014 11:38 AM	Rate (0)
William Ratcliffe Regular Member Joined: 12/8/2011 Last visit: 11/22/2024 Posts: 7 Rating: (0)	I have a related question on Timer addressing. I would like to use a TON_TIME in an array (of structs). Either an array of TON_TIME or an array of structs with TON_TIME as an member gives the same result For example [code]FUNCTION_BLOCK "LubricationProcess" VERSION : 0.1 VAR RETAIN heads : Array[0..4] of Struct lubricationFreq : Int; "timer" : TON_TIME; END_STRUCT; "localTimer" : TON_TIME; END_VAR VAR_TEMP i : Int; END_VAR BEGIN #anyActive := false; For #i := 0 To 4 Do // this is not allowed #heads[#i].timer(IN:= true, PT:=T# End_If; ; End_For; localTimer(IN:= true, PT:=T#250ms); END_FUNCTION_BLOCK[/code] The workaround is to have a FC that has a TON_TIME as an InOut parameter an reference the Timer from there. [code]FUNCTION "LubricationPointRun" : Void VERSION : 0.1 VAR_IN_OUT "this" : TON_TIME; END_VAR BEGIN #this(IN:= true, PT:=t#250ms); END_FUNCTION[/code] The question is what is the correct syntax to call TON in the above For loop?
	Last edited by: Min_Moderator at: 9/12/2014 1:19 PM New subject after splitting from /tf/WW/en/Posts/109353#top
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9/12/2014 3:22 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 12/9/2024 Posts: 15479 Rating: (2455)	William Ratcliffe I have a related question on Timer addressing. I would like to use a TON_TIME in an array (of structs). Either an array of TON_TIME or an array of structs with TON_TIME as an member gives the same result For example FUNCTION_BLOCK "LubricationProcess" VERSION : 0.1 VAR RETAIN heads : Array[0..4] of Struct lubricationFreq : Int; "timer" : TON_TIME; END_STRUCT; "localTimer" : TON_TIME; END_VAR VAR_TEMP i : Int; END_VAR BEGIN #anyActive := false; For #i := 0 To 4 Do // this is not allowed #heads[#i].timer(IN:= true, PT:=T# End_If; ; End_For; localTimer(IN:= true, PT:=T#250ms); END_FUNCTION_BLOCK The workaround is to have a FC that has a TON_TIME as an InOut parameter an reference the Timer from there. FUNCTION "LubricationPointRun" : Void VERSION : 0.1 VAR_IN_OUT "this" : TON_TIME; END_VAR BEGIN #this(IN:= true, PT:=t#250ms); END_FUNCTION The question is what is the correct syntax to call TON in the above For loop? Perhaps if you convert and use IEC_Timer rather than TON_TIME, you can work directly in the FB and not have to deal with the workaround of the FC In/Out param.
	science guy
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This contribution was helpful to 1 thankful Users William_B

9/15/2014 9:23 PM	Rate (0)
William Ratcliffe Regular Member Joined: 12/8/2011 Last visit: 11/22/2024 Posts: 7 Rating: (0)	IEC_Timer is an unknown datatype on my system. (TIA V13) Whereas TON_TIME is listed under IEC Timers Target is S7-1200 Is this available on this platform? or Am i missing something?

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9/15/2014 9:48 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 12/9/2024 Posts: 15479 Rating: (2455)	William Ratcliffe IEC_Timer is an unknown datatype on my system. (TIA V13) Whereas TON_TIME is listed under IEC Timers Target is S7-1200 Is this available on this platform? or Am i missing something? Ok, I clicked F1-Help, entered IEC_TIMER and then looked in the list of topics. Ran across this little tidbit: In V13 anyhow, IEC_TIMER is for global DB timers, and TON_TIME is for static TON_TIME in blocks. Using it within a structure in the way you seem to want is not allowed. If you explained what you were trying to accomplish, perhaps we could help find the right solution and syntax to support that need.
	science guy
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This contribution was helpful to 2 thankful Users William Ratcliffe sersyn

9/15/2014 10:09 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 12/9/2024 Posts: 15479 Rating: (2455)	Here is an example showing a Global DB IEC_TIMER and local timer is TON_TIME inside an FB. Pass in the IEC_TIMER from main to the FB and inside it is TON_TIME. This example matches the F1-Help documentation and compiles. See image. Attachment Timer_Testing_Forum_Example.jpg (918 Downloads)
	science guy
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9/17/2014 10:56 AM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4766 Rating: (122)	Follow up question published by William Ratcl...is split to a separate thread with the subject why cannot the timer be accessed by #heads[#i].timer(IN:= true, PT:=T#50ms); .... Best regards Min_Moderator

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