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- QuickOPC-Classic in .NET
- Reading, Writing, Subscriptions, Property Access
- ReadMultipleItem return an error with OPC DA Schneider
ReadMultipleItem return an error with OPC DA Schneider
26 Nov 2021 08:48 #10399
by v.parma
Replied by v.parma on topic ReadMultipleItem return an error with OPC DA Schneider
Hi,
I tryed with the 5.62.484.1 version and now working without error. Solved!!!
Thank you a lot.
Best regards.
Valter
I tryed with the 5.62.484.1 version and now working without error. Solved!!!
Thank you a lot.
Best regards.
Valter
The following user(s) said Thank You: support
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26 Nov 2021 06:40 #10397
by support
Replied by support on topic ReadMultipleItem return an error with OPC DA Schneider
It looks like that the Schneider Factory Server rejects any non-zero percent deadband - which is what we use.
I have made a modification to detect the problem and fall back to zero.
Please download the recent QuickOPC version (it should identify itself as 5.62.484.1 or later) from our Web page, rebuild your project with updated assemblies, and retest.
Best regards
I have made a modification to detect the problem and fall back to zero.
Please download the recent QuickOPC version (it should identify itself as 5.62.484.1 or later) from our Web page, rebuild your project with updated assemblies, and retest.
Best regards
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25 Nov 2021 12:45 #10396
by support
Replied by support on topic ReadMultipleItem return an error with OPC DA Schneider
Hello.
I have received the email with the trace file (posted a copy here). Thank you.
And yes, it appears the error is there. Will let you know here when I know more.
Best regards
I have received the email with the trace file (posted a copy here). Thank you.
And yes, it appears the error is there. Will let you know here when I know more.
Best regards
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25 Nov 2021 12:43 #10395
by support
Replied by support on topic ReadMultipleItem return an error with OPC DA Schneider
From: V.
Sent: Thursday, November 25, 2021 9:31 AM
To: Z.
Subject: I: OPC Analyzer link
Hi Zbynek,
this is the log trace of DataAnalyzer.
I think in the log above is present the error.
I try read without subscrition and only with ReadMultipleItems function with 0 in AgeValue parameter.
Thanks.
V.
Sent: Thursday, November 25, 2021 9:31 AM
To: Z.
Subject: I: OPC Analyzer link
Hi Zbynek,
this is the log trace of DataAnalyzer.
I think in the log above is present the error.
I try read without subscrition and only with ReadMultipleItems function with 0 in AgeValue parameter.
Thanks.
V.
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24 Nov 2021 15:55 #10392
by support
Replied by support on topic ReadMultipleItem return an error with OPC DA Schneider
Yes, I am aware of that. I will send you the link to the email you have used to register with the forums.
Please read: kb.opclabs.com/Collecting_information_for_troubleshooting
Best regards
Please read: kb.opclabs.com/Collecting_information_for_troubleshooting
Best regards
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23 Nov 2021 14:21 #10387
by v.parma
Replied by v.parma on topic ReadMultipleItem return an error with OPC DA Schneider
Yes, but you must send me a link for download, the download from OPC Foundation website is only for Corporate Members.
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23 Nov 2021 12:30 #10385
by support
Replied by support on topic ReadMultipleItem return an error with OPC DA Schneider
Hello.
Will you be willing to use OPC Analyzer as per article here: kb.opclabs.com/How_to_use_OPC_Analyzer for troubleshooting?
Regards
Will you be willing to use OPC Analyzer as per article here: kb.opclabs.com/How_to_use_OPC_Analyzer for troubleshooting?
Regards
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23 Nov 2021 10:49 #10382
by v.parma
Replied by v.parma on topic ReadMultipleItem return an error with OPC DA Schneider
I tryed with zero, but same result with same error.
P.S. Update rate is the string on our log but is "valueAge" paramter
Best regards
P.S. Update rate is the string on our log but is "valueAge" paramter
Best regards
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23 Nov 2021 08:23 #10380
by support
Replied by support on topic ReadMultipleItem return an error with OPC DA Schneider
Hello,
thanks for clarification. I do not not know the cause yet, but there is one thing that is confusing me: The meaning of the last parameter to the DAReadItemArguments is actually a "value age", not an update rate. But, of course, 10000 is still a valid value age, so it should normally work. Can you, however, for the purpose of the investigation, use zero instead? This would cause the Read be always performed from the device.
Best regards
thanks for clarification. I do not not know the cause yet, but there is one thing that is confusing me: The meaning of the last parameter to the DAReadItemArguments is actually a "value age", not an update rate. But, of course, 10000 is still a valid value age, so it should normally work. Can you, however, for the purpose of the investigation, use zero instead? This would cause the Read be always performed from the device.
Best regards
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23 Nov 2021 08:12 #10379
by v.parma
Replied by v.parma on topic ReadMultipleItem return an error with OPC DA Schneider
Hi,
sorry for point 1 of your answer, is our error on code, the value returned is last reading ok. Solved.
For second point I adding more informations:
1 - the parameter passing to the function are:
- SERVER-MachineName: <empty string>
- SERVER-ServerClass: Schneider-Aut.OFS.2
- ITEM-Id: PLCMAIN!MCC02_COMP_02_HL
- ITEM-UpdateRate: 10000
2 - the problem is only when we try to read with ReadMultipleItems for receive last values on PLC. The polling reading with subscription is ok, return the value on event ItemChanged.
Our Log with ItemChanged:
23/11/2021 08.45.54 570 - [Admin] - [Administrator] - 20211123084554000 TAG: PLCMAIN!MCC02_COMP_02_HL VALORE: 842 STATO: GoodNonspecific (192)
23/11/2021 08.45.54 575 - [Admin] - [Administrator] - 20211123084554000 TAG: PLCMAIN!MCC02_MIS_Q_RIC_01.Valore VALORE: 107,4 STATO: GoodNonspecific (192)
Log with ReadMultipleItems:
23/11/2021 08.47.23 204 - [Admin] - [Administrator] - 20211123084723000 - ERRORE lettura del tag DA PLCMAIN!MCC02_MIS_Q_RIC_01.Valore ERROR Id: System.ArgumentException - Parametro non corretto. + The client method called (or event/callback invoked) was 'ReadMultipleItems[2]'.
23/11/2021 08.47.23 204 - [Admin] - [Administrator] - 20211123084723000 - ERRORE lettura del tag DA PLCMAIN!MCC02_COMP_02_HL ERROR Id: System.ArgumentException - Parametro non corretto. + The client method called (or event/callback invoked) was 'ReadMultipleItems[2]'.
sorry for point 1 of your answer, is our error on code, the value returned is last reading ok. Solved.
For second point I adding more informations:
1 - the parameter passing to the function are:
- SERVER-MachineName: <empty string>
- SERVER-ServerClass: Schneider-Aut.OFS.2
- ITEM-Id: PLCMAIN!MCC02_COMP_02_HL
- ITEM-UpdateRate: 10000
2 - the problem is only when we try to read with ReadMultipleItems for receive last values on PLC. The polling reading with subscription is ok, return the value on event ItemChanged.
Our Log with ItemChanged:
23/11/2021 08.45.54 570 - [Admin] - [Administrator] - 20211123084554000 TAG: PLCMAIN!MCC02_COMP_02_HL VALORE: 842 STATO: GoodNonspecific (192)
23/11/2021 08.45.54 575 - [Admin] - [Administrator] - 20211123084554000 TAG: PLCMAIN!MCC02_MIS_Q_RIC_01.Valore VALORE: 107,4 STATO: GoodNonspecific (192)
Log with ReadMultipleItems:
23/11/2021 08.47.23 204 - [Admin] - [Administrator] - 20211123084723000 - ERRORE lettura del tag DA PLCMAIN!MCC02_MIS_Q_RIC_01.Valore ERROR Id: System.ArgumentException - Parametro non corretto. + The client method called (or event/callback invoked) was 'ReadMultipleItems[2]'.
23/11/2021 08.47.23 204 - [Admin] - [Administrator] - 20211123084723000 - ERRORE lettura del tag DA PLCMAIN!MCC02_COMP_02_HL ERROR Id: System.ArgumentException - Parametro non corretto. + The client method called (or event/callback invoked) was 'ReadMultipleItems[2]'.
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