Hi Sebastian, thank you very much fort he update to the list! And I totally agree with your decision and wish you best of luck with the scraper : )
And if there are questions, always feel free to ask. Julian Von: Sebastian Wiendl <[email protected]> Antworten an: "[email protected]" <[email protected]> Datum: Freitag, 29. November 2019 um 09:01 An: "[email protected]" <[email protected]> Betreff: Antwort: AW: Automatic reconnect; Reusing Objects; Thread safety Hi everyone, short feedback from my side: after a short, but very informative call with Julian i chose to try the scraper supplied with the project - with great success. For me, the scraper is the way to go, as i can simply plug it into the rest of our architecture. It already solves many of the challenges stated in my original question. Mit freundlichen Grüßen Kind regards Sebastian Wiendl DSE / Digital Solutions Software Engineer Phone: +49 9605 919 - 9341 E-Mail: [email protected] Internet: www.bhs-world.com<https://www.bhs-world.com> Shop: www.icorr.shop ________________________________ [cid:_1_175789AC175785B0002C1879C12584C1] BHS Corrugated Maschinen- und Anlagenbau GmbH Paul-Engel-Straße 1 92729 WEIHERHAMMER GERMANY Management: Christian Engel, Lars Engel Registered at Amtsgericht Weiden, HR B 1320 ________________________________ [cid:_2_1757A4881757A0A4002C1879C12584C1] [cid:_2_1757AA741757A690002C1879C12584C1] [cid:_2_1757B0601757AC7C002C1879C12584C1] [cid:_1_1757B4FC1757ADCC002C1879C12584C1] Von: "Julian Feinauer" <[email protected]> An: "[email protected]" <[email protected]> Datum: 25.11.2019 17:56 Betreff: AW: Automatic reconnect; Reusing Objects; Thread safety ________________________________ Hi Sebastian, Excellent questions, I see, you are really using plc4x :) We developed several tools for the scenario described by you like the pool or the OPM module which handle these things transparently in the background. We also have the scraper, a tool that does periodic data fetching also with handling all internals. All of the above can be found in the utils module Regarding the request size... That's tricky and depends on many external parameters. Perhaps we should really do an online hangout or something. Julian Von meinem Mobiltelefon gesendet -------- Ursprüngliche Nachricht -------- Betreff: Automatic reconnect; Reusing Objects; Thread safety Von: Sebastian Wiendl An: [email protected] Cc: Hey, sorry for the bombardment with questions lately and thanks for all the help so far! :-) 1) Is there a way to automatically reconnect on connection loss? Right now i only get a channel closed exception and everything hangs... What is the preferred approach for this scenario? Would a pooled PLCConnection help here? 2) Can some objects be reused, e.g. the ReadRequest in a recurring read operation? 3) Which objects are safe to use in multiple threads? Scenario here: I will have two groups of fields on one PLC that i want to collect with different sampling rates. 4) Is there a best practice value for max fields per read request? Should large requests be split into multiple smaller, serial requests? All questions in the context of the S7 driver. Mit freundlichen Grüßen Kind regards Sebastian Wiendl DSE / Digital Solutions Software Engineer Phone: +49 9605 919 - 9341 <http://www.bhs-world.com<http://www.bhs-world.com/>>E-Mail: [email protected] Internet: www.bhs-world.com<https://www.bhs-world.com<https://www.bhs-world.com/>> Shop: www.icorr.shop ________________________________ [cid:_1_12019A181201961C005A5275C12584BD] BHS Corrugated Maschinen- und Anlagenbau GmbH Paul-Engel-Straße 1 92729 WEIHERHAMMER GERMANY Management: Christian Engel, Lars Engel Registered at Amtsgericht Weiden, HR B 1320 ________________________________ [cid:_2_1201B4F41201B110005A5275C12584BD] [cid:_2_1201BAE01201B6FC005A5275C12584BD] [cid:_2_1201C0CC1201BCE8005A5275C12584BD] [cid:_1_1201C5681201BE38005A5275C12584BD]
