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Missing instruction in tia portal (DP_SEND,DP_REC) and another question (DPWR_DAT)

Created by: Orcaof at: 4/22/2014 9:59 AM (8 Replies)

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4/22/2014 9:59 AM	Rate (0)
Orcaof Member Joined: 4/22/2014 Last visit: 7/23/2014 Posts: 7 Rating: (0)	I am currently trying to communicate with a s7-300 and an arduino card with a homemade profibus card on it. After researching about the profibus communication in tia portal it seems that dp_send and dp_rec would be the blocks in need, but i can't find them anywhere. I am using V11 sp2 update 5. The strange thing is that i can't find anywhere that this instruction is not working on a s7-300 and when i download the s7-1200 example from here for the profibus communication those blocks are here (but i can't copy paste them in my project). Does any one have an idea if this is possible or where i could find them in order to add them to my library ? Also i am trying to use dpwr_dat (because of the lack of dp_send) tos end data to my target but in the RECORD data i don't seems to be able to put an array of byte. I can select a byte in the array but not the complete array (even when the description of the block is telling me i should be able too). Thank you for the answers ;)

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4/22/2014 6:42 PM	Rate (0)
Jens_app Gold Member Joined: 1/5/2011 Last visit: 1/22/2020 Posts: 805 Rating: (104)	Hello Orcaof, I think the instruction DP_SEND and DP_RECV is still available. Try looking at communication, profibus dp instructions. 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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4/23/2014 4:59 AM	Rate (0)
fritz Diamond Member Joined: 10/7/2005 Last visit: 1/19/2020 Posts: 2770 Rating: (918)	Hello Orcaof DP_SEND and DP_RECV are only required if you use a CP342-5 as the DP Master interface in an S7-300 so my first question is: What DP Master do you intend to use on your S7-300 (CPU's onboard DP port or CP342-5)? Either way, the one thing you MUST have is a GSD file for your DP Slave which is then imported into TIA Portal and used for the DP Slaveconfiguration (see for example HERE and HERE on how to import GSD files in TIA Portal and http://www.profibus.com/products/gsd-files/for more on GSD files in general). The big (and second) question is: Have you created a GSD file for your own "arduino card with a homemade profibus card on it"? I hope this helps
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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4/23/2014 10:07 AM	Rate (0)
Orcaof Member Joined: 4/22/2014 Last visit: 7/23/2014 Posts: 7 Rating: (0)	Yes, i already have the gsd file for my arduino card which will be the DP slave. My current siemens installation is this the zip file attached : http://www43.zippyshare.com/v/22998667/file.html The profibus port is on a6es7 677-1dd40-1aa0 module. If i don't have to use dp_send/dp_rec then what block should do the job ?

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This contribution was helpful to 1 thankful Users sbousse

4/23/2014 10:19 AM	Rate (0)
Orcaof Member Joined: 4/22/2014 Last visit: 7/23/2014 Posts: 7 Rating: (0)	Jens_app Hello Orcaof, I think the instruction DP_SEND and DP_RECV is still available. Try looking at communication, profibus dp instructions. Kind regards, Jens I already searched in all the instructions, no dp_send/dp_rec.

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4/24/2014 6:03 AM	Rate (0)
fritz Diamond Member Joined: 10/7/2005 Last visit: 1/19/2020 Posts: 2770 Rating: (918)	Orcaof If i don't have to use dp_send/dp_rec then what block should do the job ? Hello Orcaof it depends on how your configured your DP Slaves I/O's, specifically the consistent length of them. Option1: Access them directly as you would access any other I/O's (i.e. no special block needed at all). Have a look at How can you access consistent data without SFC14/15 as part of the process image?for more on this. Option2: Use SFC 14 & 15 Have a look at How do you read data consistently from a DP standard slave/PROFINET IO device and write it consistently to a DP standard slave/PROFINET IO device? Another factor to consider isif your DP Slaves I/O'sare inside or outside your S7-MEC's Process Image. Have a look at Where and when do you need peripheral addressing? for more on that subject. I hope this helps
	Last edited by: fritz at: 4/24/2014 6:04 AM fixed quote bug Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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4/24/2014 8:30 AM	Rate (0)
Orcaof Member Joined: 4/22/2014 Last visit: 7/23/2014 Posts: 7 Rating: (0)	Thank you for your answer, i will look this today ;)

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10/28/2014 10:57 AM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 5133 Rating: (115)	New question published bybima is split to a separate thread with the subject I need the gsd file for the Arduino. Best regards Min_Moderator

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12/31/2016 6:23 PM	Rate (0)
CS Moderator Moderator Joined: 9/1/2005 Last visit: 1/22/2020 Posts: 3812 Rating: (176)	New question published by sbousse is split to a separate thread with the subject communicate between an arduino. Best regards CS Moderator

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