Eclipse Community Forums: 4DIAC - Framework for Distributed Industrial Automation and Control » SUBSCRIPE can not convert "ANY" to "ANY

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SUBSCRIPE can not convert "ANY" to "ANY_INT" [message #1840328]

Mon, 12 April 2021 12:21

Eclipse User

This is my application:
index.php/fa/40325/0/

The application toggles between two phases: "PHASE_0" and "PHASE_1".

"PHASE_0" :
    NORTH.out == SOUTH.out == 1
    EAST.out == WEST.out == 0

"PHASE_1" :
    NORTH.out == SOUTH.out == 0
    EAST.out == WEST.out == 1

I used the following types:
- PHASE_CNT = INT2INT
- PHASE_1_INT = INT2INT
- PHASE_1_ADD = F_ADD
- PHASE_1_INT = INT2INT

This works fine running on one runtime.

But spreading it on multiple systems using PUBLISH_2 and SUBSCRIBE_2 I have a problem on subscribing:
I can't connect e.g. "SUBSCRIBE_2.RD1 ---> NORTH.IN1": index.php/fa/40326/0/

Attachment: 4diac_appl.png
(Size: 59.12KB, Downloaded 253 times)
Attachment: 4diac_nw.png
(Size: 49.29KB, Downloaded 201 times)

Re: SUBSCRIPE can not convert "ANY" to "ANY_INT" [message #1840341 is a reply to message #1840328]

Mon, 12 April 2021 16:18

Eclipse User

the problem is that SUBSCRIBE in its current from is not allowed to determine the datatype only from the data packet information but also from where it is connected to. In 4diac IDE 1.13.1 and earlier we therefore have not allowed connections between the any types. We relaxed that in the upcoming 4diac IDE 1.14.0. However this will just result in run-time problems. In your case you need to insert an FB that clearly defines the data type (for you INT) on receiver side as well.

Re: SUBSCRIPE can not convert "ANY" to "ANY_INT" [message #1840375 is a reply to message #1840328]

Tue, 13 April 2021 09:07

Eclipse User

Placing a "UNIT2UINT" converter before "NORTH.IN1/SOUTH.IN1/..." and a "INT2INT" before "...IN" does solve my problem.

Thank you for the hint.

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