xpca

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Welcome to the XPCA discussion forum.

XPCA stands for eXtensible (or eXperimental if you prefer) Process Control Architecture - a lightweight architecture for process control applications. At its core is an application of REST-style architectures applied to process control protocols (e.g. mapping of Modbus messages to a RESTful interface).

The XPCA project has had many short bursts of activity over the years, but no consistent development. This forum is to be used to coordinate new work, to discuss ideas relevant to XPCA and process control in general.

We welcome your input.

-Tom

0 selected

ferrisoxide, Aleksey Timin3

12/5/15

Going with HAL + Protocol Buffers vs Thrift?

Hi Alexey You are right - mapping Modbus to XPCA doesn't make sense. XPCA should really live at a

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Going with HAL + Protocol Buffers vs Thrift?

Hi Alexey You are right - mapping Modbus to XPCA doesn't make sense. XPCA should really live at a

12/5/15

flipback, … Tom Tuddenham6

9/9/15

XPCA spec for JSON and XML

It's quite possible the site was hacked. The server that's running on was compromised a while

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XPCA spec for JSON and XML

It's quite possible the site was hacked. The server that's running on was compromised a while

9/9/15

ferrisoxide, flipback2

9/9/15

I don't think it is needed, because it's useless without a host system. One can buy this

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I don't think it is needed, because it's useless without a host system. One can buy this

9/9/15

flipback, ferrisoxide2

9/8/15

Ardunio and Websocket

We probably should get in touch with Kevin and see what he's been up to lately. I agree, similar

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Ardunio and Websocket

We probably should get in touch with Kevin and see what he's been up to lately. I agree, similar

9/8/15

9/8/15

New xpca website

Just a short note. I'm planning on setting up a new website for XPCA. The old xpca.org site is

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New xpca website

Just a short note. I'm planning on setting up a new website for XPCA. The old xpca.org site is

9/8/15

ferrisoxide, flipback2

11/16/11

As author of this mapping I vote too. But maybe we will design basic XPCA-spec for description of

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As author of this mapping I vote too. But maybe we will design basic XPCA-spec for description of

11/16/11

11/16/11

Specifications and governance

Hi folks This may be premature, but I've wanted to get a specification model in place so I've

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Specifications and governance

Hi folks This may be premature, but I've wanted to get a specification model in place so I've

11/16/11

flipback, … Tallak Tveide4

10/16/11

DSL for XPCA applications

I'm trying implementation analog of OPC Servers (such as KepServer for example) based on REST

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DSL for XPCA applications

I'm trying implementation analog of OPC Servers (such as KepServer for example) based on REST

10/16/11

ferrisoxide, flipback2

9/16/11

Random thoughts on security

Yes, for Internet technologies problem of security is matter which it is resolving since birth web.

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Random thoughts on security

Yes, for Internet technologies problem of security is matter which it is resolving since birth web.

9/16/11

flipback, ferrisoxide3

9/11/11

2011/9/11 ferrisoxide <ferri...@gmail.com>: > Hi Aleksey > > Sorry, I've been

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2011/9/11 ferrisoxide <ferri...@gmail.com>: > Hi Aleksey > > Sorry, I've been

9/11/11

8/23/11

Tightening the spec

Hi folks I've been thinking we need to come up with some basic constraints around the spec - at

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Tightening the spec

Hi folks I've been thinking we need to come up with some basic constraints around the spec - at

8/23/11

flipback, … Darren10

8/16/11

Subscribing model in XPCA

Thanks, Darren) Finally, I have understood that Tom and you mean! It's more higher level of

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Subscribing model in XPCA

Thanks, Darren) Finally, I have understood that Tom and you mean! It's more higher level of

8/16/11

ferrisoxide, Aleksey Timin3

8/13/11

Documentation / governance

Once a standard / recipe is published you wouldn't be able to make changes. Instead you would

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Documentation / governance

Once a standard / recipe is published you wouldn't be able to make changes. Instead you would

8/13/11

ferrisoxide, flipback2

7/26/11

XPCA discovery model

Good guide for future implementations! I will translate it to Russian in near future)

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XPCA discovery model

Good guide for future implementations! I will translate it to Russian in near future)

7/26/11

ferrisoxide, … flipback5

7/16/11

Yep.. I think you and Anton are right. Funnily enough, it's the thing I argue whenever I see

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Yep.. I think you and Anton are right. Funnily enough, it's the thing I argue whenever I see

7/16/11

5/16/11

Notes from meeting: Saturday 14th of May

Other things we talked about but I forgot to mention - the idea of defining our own set of

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Notes from meeting: Saturday 14th of May

Other things we talked about but I forgot to mention - the idea of defining our own set of

5/16/11

ferrisoxide, Darren2

3/17/11

Initial thinking

I've been thinking about the level that ideas like this should reside. Is it as a middle man

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Initial thinking

I've been thinking about the level that ideas like this should reside. Is it as a middle man

3/17/11

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