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WORD_TO_BLOCK_DB problem

Created by: Jens_app at: 4/1/2014 11:49 AM (12 Replies)

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4/1/2014 11:49 AM	Rate (0)
Jens_app Gold Member Joined: 1/5/2011 Last visit: 3/13/2025 Posts: 815 Rating: (123)	Dear all, I'm trying something new with WORD_TO_BLOCK_DB, but it seems to fail. This is what I'm trying: "Tag_13" := WORD_TO_BLOCK_DB("DB_SelectableAlarms".Alarms["DB_SelectableAlarms".Index]."Input.DBno").DX(0,0); ( "DB_SelectableAlarms".Alarms["DB_SelectableAlarms".Index]."Input.DBno" is a WORD in an array. and "DB_SelectableAlarms".Index increments in a loop). When I compile it says internal error. What is wrong with this code? What can I do to make this work? Thanks in advance Kind Regards, Jens
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4/1/2014 11:59 AM	Rate (0)
Remark Bronze Member Joined: 9/1/2006 Last visit: 8/21/2025 Posts: 193 Rating: (13)	Hi Jens, Did you already try to use extra variables instead of making one 'complex' line? That might help you solve this issue or atleast figure out which part of the line is causing the problems. best regards, Remark

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4/1/2014 12:03 PM	Rate (0)
Jens_app Gold Member Joined: 1/5/2011 Last visit: 3/13/2025 Posts: 815 Rating: (123)	Well actually I just did, I created something like did: #tempDBno := "DB_SelectableAlarms".Alarms["DB_SelectableAlarms".Index]."Input.DBno"; #tempByteNo := "DB_SelectableAlarms".Alarms["DB_SelectableAlarms".Index]."Input.Byteno"; #tempBitNo:= "DB_SelectableAlarms".Alarms["DB_SelectableAlarms".Index]."Input.Bit.no"; "Tag_13" := WORD_TO_BLOCK_DB(#tempDBno).DX(#tempByteNo,#tempBitNo); still the same error. But when I only do this: "Tag_13" := WORD_TO_BLOCK_DB(#tempDBno).DX(0,0); It works fine. Any idea why the first won't work? GrJens
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4/1/2014 1:29 PM	Rate (0)
Remark Bronze Member Joined: 9/1/2006 Last visit: 8/21/2025 Posts: 193 Rating: (13)	Hi Jens, Can you try it with this syntax.... "Tag_13" := WORD_TO_BLOCK_DB(#tempDBno).DX(IDX:=#tempByteNo, BIT:=#tempBitNo); This should be the syntax for a S7-1500, are you using a 1500? best regards, Remark
	Last edited by: Remark at: 4/1/2014 1:31 PM
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4/1/2014 1:32 PM	Rate (0)
Jens_app Gold Member Joined: 1/5/2011 Last visit: 3/13/2025 Posts: 815 Rating: (123)	Hi Remark, it is not a syntax error Software is tia v11 sp2, hardware is s7-300
	Last edited by: Jens_app at: 4/1/2014 1:33 PM Keep it simple and on-topic. A simple straight-to-the-point answer is often of more quality than a complicated one.
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4/1/2014 1:54 PM	Rate (0)
Remark Bronze Member Joined: 9/1/2006 Last visit: 8/21/2025 Posts: 193 Rating: (13)	Hi Jens, I use V12 SP1 and have tried these different lines: #BoolVal:=%DB1.DX(IDX :=#ByteNr,BIT:=#BitNr); #BoolVal := WORD_TO_BLOCK_DB(#DBnr).DX(0,0); #BoolVal := WORD_TO_BLOCK_DB(#DBnr).DX(#ByteNr,#BitNr); No problems compiling any of these lines.... May be rebuild the function in new FC ? internal error somewhere ? best regards, Remark
	Last edited by: Remark at: 4/1/2014 1:56 PM
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This contribution was helpful to 1 thankful Users Jens_app

4/1/2014 2:08 PM	Rate (0)
Jens_app Gold Member Joined: 1/5/2011 Last visit: 3/13/2025 Posts: 815 Rating: (123)	thanks for the fast reply Remark, i'll try to rebuild the function later on the day and come back to you. In the meanwhile, could it be possible the problem is here somewhere: #tempDBno := "DB_SelectableAlarms".Alarms["DB_SelectableAlarms".Index]."Input.DBno"; #tempByteNo:= "DB_SelectableAlarms".Alarms["DB_SelectableAlarms".Index]."Input.Byteno"; #tempBitNo := "DB_SelectableAlarms".Alarms["DB_SelectableAlarms".Index]."Input.Bit.no"; and not in #tag:= WORD_TO_BLOCK_DB(#tempDBno).DX(#tempByteNo, #tempBitNo); ?? Kind regards, Jens
	Keep it simple and on-topic. A simple straight-to-the-point answer is often of more quality than a complicated one.
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4/1/2014 3:17 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 9/11/2025 Posts: 16093 Rating: (2515)	DB setup as s7-300/400 compatible or symbolic? If symbolic, it will not work this way.
	science guy
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4/1/2014 3:29 PM	Rate (0)
Jens_app Gold Member Joined: 1/5/2011 Last visit: 3/13/2025 Posts: 815 Rating: (123)	Hi huggy_d1, do you mean this? { S7_Optimized_Access := 'FALSE' }. By the way, for some reasonI'm not able to change this setting (optimized/Standard). Gr Jens
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4/1/2014 3:42 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 9/11/2025 Posts: 16093 Rating: (2515)	Jens_app Hi huggy_d1, do you mean this? { S7_Optimized_Access := 'FALSE' }. By the way, for some reasonI'm not able to change this setting (optimized/Standard). Gr Jens Yes, optimized = false. For me, I right click the DB in the project tree, select properties and sift through the available options until I see a checkbox. V11 and before do not allow you to change that checkbox. V12 and up allow you to change the status of the checkbox, compile and download. Much more user friendly option. Sounds like you have it set to the proper setting. I do not use s7-300's so cannot help with this beyond that setting.
	science guy
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This contribution was helpful to 1 thankful Users Jens_app