No they wouldn't. They would be exposed to the server implementation and the ui.
The thing is that the above structure s7 could probably automatically translate
into s7 addresses. However for Modbus an explicit mapping is required (sort of
mirroring reality with real plcs).
How would these data structures be exposed to the user? An API? Or a
A simple way to see it would be to have the PLC data structures (DB, PEW,
M, etc.) as instances of ByteBuf from the Netty library.
El mar., 15 oct. 2019 a las 8:55, Christofer Dutz (<
I think the API must be at a very low level, bits, bytes, memory addresses.
This would allow everyone to customize their application.
For example, if my application were in the "mechatronics" area, a high
percentage of queries would only refer to peripheral addresses (bits,
thanks for picking up this discussion and for the three suggestions.
My initial approach would be rather similar to your suggestion 3 BUT with a
My observation and belief is, that we currently focus nearly 100% on java (I
know that you work on codegen for the other
sorry for being late tot he party but I agree with whats been said and would
opt for 1 or 3.
We use Vaadin quite a lot and since Vaadin 10 or "flow" it does no longer
require GWT so theres no necessity to change anything in the build (and it
integrates nicely with Spring).
But Option 1 is
what Tim describes is in the regular repo. We had to indroduce this "hack" as
we did not find any working documentation of the hex codes.
So I agree with you that it would be better to do it the "right" way but as we
needed these types we simply took the "easy" way.
But in fact, for
Thanks for the warm welcome and your thoughts on the matter!
Like you said, both approaches can co-exist with one another,
therefore starting with the low-level approach is probably the
straightforward thing to do. My main initiator for the question was
whether the users (through the
sorry for the late response ... it sort of managed to drop just outside the top
of the email list.
Let me double-check and summarize what I understood what you are asking for:
- You have some sort of "structure" you want to read in multiple locations
(memory blocks and PLCs)?
the Thrift project is currently voting on a new release … this will make the
C++ part compatible with Boost again.
So I’m hoping that anyone wanting to work on C++ that we will be able to
provide Thrift support soon (It’s currently disabled as the build currently
I was just smiling a little bit while reading this because I remembered my
presentations almost 10 years ago about such discussions...
Just for reference (you don't need to agree with my categorization), and
today you think much more about "Vue/Angular/React/JS-Framework of the
week". I discussed
While implementing the S7Server part I noticed that my HelloPlc4x config is
always set to get the values of the inputs and the outputs and not the internal
memory of the S7
So this got me thinking … just having a Map as context might
not be enough to really play around.
For a S7 I
I think I double checked spring boot when I implemented this little hello-world
webapp in the examples.
I guess from the licensing side this should be ok ... or it slipped past
Justin's legal eagle-eyes ;-)
Usually I would say that we shouldn't enforce any framework on our users. But I
welcome to this coolest mailing-list the Apache Software Foundation has :-)
Just let me sum up how I understood your question:
- You wanted to know opinions on how a frontend should communicate with the
I have to admit that I would sort of expect the backend and
Hi everyone again,
We're currently looking into creating a frontend for interacting with
the PLC Simulator, i.e. having an administration interface for
changing properties/input/output and, if time allows, some fancier
visual representations of the devices the PLCs control.
As for the REST
I'm currently working on creating a frontend and REST interface for
the PLC Simulator to control the different simulation modules for
testing and presentation purposes.
One question came up this morning with Chris about whether the backend
should be more low level or high level.
Replying to both posts in one email ...
@Niclas: Yes we had thought of that ... as far as I remember it, it was
considered an option as the project grows. If we split it up now, this would
result in 6 repos (build-tools, protocols, java, c++, c# and python) ... this
would result in every
So depending on the TYPE constant used in the address (the actual String "enum
name") you ask for raw bytes?
Is this in your PI fork, or is this in PLC4X main repo?
I was thinking that this probably is not the way a S7 works ... cause if a HMI
asks for this data I doubt they built it
First of all it's a very good idea to simply the profile-stuff.
My thoughts to that are that we maybe could add a little shell-script
(Mac/Linux), bat-file (Windows) that guides the user ("Do you want to build
Java-sources? [Yes/No]) and states if all requirements for build of
Has multiple repositories been considered? A project may request as many as
On Tue, Oct 15, 2019 at 4:07 PM Christofer Dutz
> Hi all,
> as I have heard complaints that the current way we handle profiles is too
> complicated, I would like to discuss alternatives with
I extended the implementation because S7-1500 family returns a not known
datatype for those date-types, and there was a need to read those types. So I
acquire a set of bytes and extract the date information from that.
If that causes problems with the simulator we should have a deeper look
as I have heard complaints that the current way we handle profiles is too
complicated, I would like to discuss alternatives with you all.
Currently if you just run “./mvnw install” it will only build the protocols.
This is probably not what the user wants.
Right now we didn’t want to
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