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DP/PA coupler configuration

Created by: Ufa at: 7/31/2014 11:25 AM (6 Replies)

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7/31/2014 11:25 AM	Rate (0)
Ufa Advanced Member Joined: 11/18/2013 Last visit: 2/28/2024 Posts: 4 Rating: (0)	Hello I have tried to look how to configure DP/PA coupler and IM151-8 CPU (151-8AB01-0AB0)+DP master interface (138-4HA00-0ABB0)+ DP/PA coupler TIA portal v12. Currently, the main problem is with the network speed, all of options are not allowed, please see the attached screenshot. Thank you in advance! Attachment Coupler.JPG (464 Downloads)

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8/1/2014 2:17 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 9/16/2024 Posts: 3020 Rating: (1054)	Hello Ufa If you only use a PA coupler (FDC157), your DP speed MUSTbe setto 45.45 kbps and there's nothing you can do about this. If you want to run your DP bus at higher speeds, you need to use a DP/PA link (IM153-2 plus one or up to five FDC157next to it). Have a look at How do you set up the DP/PA link and how do you configure the DP/PA link and DP/PA coupler? for more on these two options. In case you decide to gofora DP/PA link, the "Future of Automation" (aka TIA Portal) throws another little spanner in the works as it does NOT allow the user friendly integration like "classic" Step 7 V5.x does (go figure, and I haven't lost hope thatthe TIA Portal developers will wake up one day and change this). Instead, you'll need to do a GSD file based integration (rather clunky and cumbersome in this case) and will find the instructions on howtodo so atHow do you configure the DP/PA link or the Y link in the external master / STEP 7 V12 (TIA Portal)? 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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This contribution was helpful to 2 thankful Users dchartier Ste39

8/3/2014 9:39 AM	Rate (0)
Ufa Advanced Member Joined: 11/18/2013 Last visit: 2/28/2024 Posts: 4 Rating: (0)	Thank you, Fritz, I understand, that this only one network speed, available, but even this option is not allowed. To be honest, this is my first experience in PROFIBUS world. The link, that you mentioned above relates to 6ES7157-0AD82-0XA0, I have 6ES7157-0AC83-0XA0. Should I choose the option PA Link; IM157 : 6ES7 157-0AA82-0XA0? If not, I understand, that I have a problem and I don't see any way how to proceed from here!

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8/4/2014 4:06 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 9/16/2024 Posts: 3020 Rating: (1054)	Hello Ufa ok, I understandyour predicament now and is this is strange indeed. I just did a quick TIA Portal V13 test and end up with the same error as you (i.e. selecting 45.45 kbps for the IM151-8 DP Master interface module 6ES7138-4AH00-0AB0 is NOT permissible for whatever kind of weird and wonderful reasons). The same configuration works perfectly well though if done in "classic" Step 7 V5.x, sounless someone else out there has another idea I'd put this down as an "undocumented feature" of TIA Portal. I suggest you start a Support Request and keep updated as and when news comes to hand.
	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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8/4/2014 11:52 AM	Rate (0)
Ufa Advanced Member Joined: 11/18/2013 Last visit: 2/28/2024 Posts: 4 Rating: (0)	Hello Fritz, Thanks a lot for your reply. As you advised, I downgraded to "old" version of Step 7. It really has been compiled without any errors. Please correct me if I am wrong. This type of coupler can be mounted on backplane and if I understood correctly, this option dedicated only for diagnostics option. If this option is not used (I don't have backplane), this coupler can be used as transparent module and can be excluded out of current project. In other words, no need configuration in Hardware (Step 7). Physically, PA field devices can be connected via coupler, but under Hardware (Step 7) it should be connected directly to PROFIBUS DP masternetwork. I hope I was clear.

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8/7/2014 10:17 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 9/16/2024 Posts: 3020 Rating: (1054)	Hello Ufa including the FDC157 PA coupler in the S7 HWconfig is optional (do so if you wish to access its Diagnostic data) unless you use PA ring redundancy (which requires two PA couplers). In either case, you are correct, the PA devices are dragged directly onto the "Profibus" line (the PA coupler is transparent for the DP Master so the PA devices appear to the DP Master as if they were DP Slaves). Have a look at chapter 7 of the SIMATIC Bus links DP/PA coupler, active field distributors, DP/PA Link and Y Link for more in this and note chapter 4.1 too which has the installations variants. 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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This contribution was helpful to 2 thankful Users dchartier IBN-Service

8/10/2014 2:21 PM	Rate (0)
Ufa Advanced Member Joined: 11/18/2013 Last visit: 2/28/2024 Posts: 4 Rating: (0)	Thank you very much, Fritz! Now it's absolutely clear. Seems, it's working now. Thanks again!

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