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Wed, 08 June 2022 12:33

Eclipse User

Hi everyone,
I am trying to use a query which I send via TCP/IP to see what FBs or Connections exist. Unfortunately, I have not found an exact explanation on how the queries work. I run forte, deploy my Application and then send the query. While doing so, I encountered 2 problems.

Problem 1:
The query I am sending would for example look like this:

EMB_RES;<Request ID="16" Action="QUERY"><FB Name="A" Type="E_CYCLE" /></Request>\n'

EMB_RES;<Request ID="17" Action="QUERY"><FB Name="" Type="" /></Request>\n'

Now my problem is that I get the same response to both of them, listing all the FBs in the Application. Apparently I am not able to address a specific one.

Response:

Response ID="16">\n  <FBStatus Status="<FB name="START" type="E_RESTART"/>\n<FB name="A" type="E_CYCLE"/>\n<FB name="B" type="E_CYCLE"/>\n<FB name="C" type="E_PERMIT"/>\n<FB name="D" type="E_SWITCH"/>" />\n</Response>

Problem 2:
As soon as I move my FBs into SubApps, they are not found anymore. The only FB I would get as a response is the START FB.
The query I am sending would for example look like this:

EMB_RES;<Request ID="18" Action="QUERY"><FB Name="SubApp.A" Type="E_CYCLE" /></Request>\n'

Response:

Response ID="18">\n  <FBStatus Status="<FB name="START" type="E_RESTART"/>" />
</Response>

Does anybody have any idea why it doesn't work? Have these issues occurred to anybody before?

Help would be highly appreciated :)

Have a nice day!

Sarah

Re: Response to QUERY [message #1852863 is a reply to message #1852861]

Wed, 08 June 2022 15:48

Eclipse User

Hi,

4diac FORTE tries to follow the definitions of the "IEC 61499 compliance profile for feasibility demonstrations" [1]. However the query part is the least tested and used. So it may also just be a bug that you found. A detailed explanation of the query syntax can be found in Table 6.4.2-2 in [2].

I hope this helps.

Cheers,
Alois

[1] https://www.holobloc.com/doc/ita/index.htm
[2] https://www.holobloc.com/doc/ita/s4.htm

Re: Response to QUERY [message #1852886 is a reply to message #1852863]

Thu, 09 June 2022 10:45

Eclipse User

Thank you! The explanation of the query syntax was very helpful. I'll see how to proceed with this information. :)

Sarah

Re: Response to QUERY [message #1852904 is a reply to message #1852886]

Fri, 10 June 2022 03:34

Eclipse User

Happy to help. But just again as warning 4diac FORTE may have bugs in the query infrastructure. Please let us know if you experience strange behavior.

Cheers,
Alois

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