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pointer problem with FB andFC

Created by: lad_stl at: 10/28/2014 8:08 PM (15 Replies)

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10/28/2014 8:08 PM	Rate (0)
lad_stl Posts: 101 Rating: (0)	Hi Good day for you all, I have question about using pointer with FB and with FC. are there any restrictions should be taken into cosideration during deal with any of them?.i ask that because in the file i attached here i make FB and FC to make smalljob using pointer but the result was that FB is executed correct (gives the result).but FC does not give the right result.please see the attached pics. and you will understand what i mean. Attachment wonder.zip (203 Downloads)
lad_stl Posts: 101 Rating: (0)
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10/28/2014 9:05 PM	Rate (0)
Ebrahim_1 Posts: 79 Rating: (1)	FC 5 is not excuted (not enabled) its being blocked by normally closed logical 1 (m50.1) in OB1. while FB12 is being excuted by OB1
Ebrahim_1 Posts: 79 Rating: (1)
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10/29/2014 7:47 AM	Rate (0)
mopS04 Platinum Expert Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating: (1054)	dear lad_stl, FC5 is never called. You are using the Logic A M50.1 AN M50.1 UC FC5 So the FC5 is never working. The only restiction I know is when you calling a FB in a FB. As I remember the AR2 is not the same after calling the FB. regards,
	FCK WAR! Be nice!
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10/30/2014 7:01 PM	Rate (0)
lad_stl Posts: 101 Rating: (0)	thanks at all I know that i disable FC5. but when i enable it and disable FB ,it does not execute well.this is my question. The tow FB and FC5 has the same code. but results are diffrents
lad_stl Posts: 101 Rating: (0)
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10/30/2014 7:43 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	lad_stl thanks at all I know that i disable FC5. but when i enable it and disable FB ,it does not execute well.this is my question. The tow FB and FC5 has the same code. but results are diffrents Hello, I think similar question was discussed in the German conferences,read more here: FC mit IN-Parameter vom Typ String FUNCTIONFC1:VOID TITLE= AUTHOR:HD FAMILY:FORUM_D NAME:STR VERSION:0.1 VAR_INPUT test1:STRING[254]; test2:STRING[254]; test3:STRING[254]; END_VAR BEGIN NETWORK TITLE= LP##test1; LAR1; LW[AR1,P#0.0]; TMW300; LD[AR1,P#2.0]; TMD304; AUFDB[MW300]; LAR1MD304; LB[AR1,P#0.0]; TMB500; LB[AR1,P#1.0]; TMB501; LD[AR1,P#2.0]; TMD502; LB[AR1,P#6.0]; TMB506; END_FUNCTION I hope this helps, Hamid Hosseini
	Demo Channel on Youtube
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10/30/2014 7:54 PM	Rate (0)
lad_stl Posts: 101 Rating: (0)	hdhosseini lad_stl thanks at all I know that i disable FC5. but when i enable it and disable FB ,it does not execute well.this is my question. The tow FB and FC5 has the same code. but results are diffrents Hello, I think similar question was discussed in the German conferences,read more here: FC mit IN-Parameter vom Typ String FUNCTIONFC1:VOID TITLE= AUTHOR:HD FAMILY:FORUM_D NAME:STR VERSION:0.1 VAR_INPUT test1:STRING[254]; test2:STRING[254]; test3:STRING[254]; END_VAR BEGIN NETWORK TITLE= LP##test1; LAR1; LW[AR1,P#0.0]; TMW300; LD[AR1,P#2.0]; TMD304; AUFDB[MW300]; LAR1MD304; LB[AR1,P#0.0]; TMB500; LB[AR1,P#1.0]; TMB501; LD[AR1,P#2.0]; TMD502; LB[AR1,P#6.0]; TMB506; END_FUNCTION I hope this helps, Hamid Hosseini thank you M.r hossieni any way but,sorry i understand nothing.
lad_stl Posts: 101 Rating: (0)
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10/30/2014 8:00 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	lad_stl thank you M.r hossieni any way but,sorry i understand nothing. It is crystal clear , in FCs the whole complex variables is not generally kept in lokal area but programmer is informed about the place variable existing.In this case it is a DB pointer . I hope this is what you are looking for
	Demo Channel on Youtube
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1/4/2015 7:26 AM	Rate (0)
Immanuel Kant Posts: 5 Rating: (0)	So, how can i access the complex data type (like string or array) outputusingthe pointer? thanks!
Immanuel Kant Posts: 5 Rating: (0)
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1/4/2015 2:28 PM	Rate (0)
MicroMan Platinum Member Joined: 11/29/2011 Last visit: 10/24/2024 Posts: 1360 Rating: (232)	Immanuel Kant So, how can i access the complex data type (like string or array) outputusingthe pointer? thanks! Hi, Set up an any pointer then you can use SFCs to move data. You can access the whole dataset by addressing the structure. Cheers
	- What you read here, please check with manuals and your requirements. - Do not forget to Test, Test and Test... - If the post is helpful, please RATE it! MicroMan
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This contribution was helpful to 1 thankful Users hdhosseini

1/4/2015 5:45 PM	Rate (1)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	MicroMan Immanuel Kant So, how can i access the complex data type (like string or array) outputusingthe pointer? thanks! Hi, Set up an any pointer then you can use SFCs to move data. You can access the whole dataset by addressing the structure. Cheers Dear all friends, Just to add a point, Providing ANY pointer to access a Giant complex varaible like STRING is clever but where do you want to copy it and then process it inside an FC? The idea is to read/write access to it where it is actaully (without moving it) e.g set of cells inside a DB so you need DB pointer. For application that requires ANY pointer as crucial parameters of target functions like Block Move or communication blocks, I agree with idea. I hope this clears some doubts now! Hamid Hosseini
	Demo Channel on Youtube
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This contribution was helpful to 1 thankful Users MicroMan

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