ABCLX and ControlLogix V34 Firmware

Nick Dacek over 2 years ago

Hey Guys.

Has anyone successfully gotten the latest ABCLX driver inside of PlantSCADA to talk to an L8x series Processor running the V34 firmware?

Customer is demanding it. We've tested a project while talking to V33 firmware and everything is fine. Once we update, comms cease to exist.

My guess is Rockwell changed something and the ABCLX driver needs updated

Any ideas?

Top Replies

Mike over 2 years ago +1

I would recommend looking at the Rockwell FactoryTalk Linx Gateway OPC Server software (connected via OPCLX driver). We have been using it for a number of years now and have found it very reliable and…
Nick Dacek over 2 years ago in reply to Mike +1

Hey Mike, In our experience we've found it rather slow compared to the ABCLX driver. Maybe we were doing something wrong. So far the customer has been OK with going back to V33.

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Olivier over 2 years ago

Hi Nick Dacek ,

I recommend reaching out to AVEVA Technical Support to discuss this issue.

I have observed customers reporting initial problems connecting to certain PLC models with V34 firmware, but there has also been feedback of successful communications after tuning the Citect.ini parameters. I'm not comfortable sharing that information here, as I don't want to bypass official support channels.

Longer term though, I think the best strategy is to transition you communications configuration to the OPCLX driver, since it will use an official Rockwell API to communicate with the PLC. There is definitely a risk that one day Rockwell decides to make a change that renders the ABCLX (reverse engineered protocol driver) non-functional.

Kind regards

Olivier
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Olivier over 2 years ago

Hi Nick Dacek ,

I recommend reaching out to AVEVA Technical Support to discuss this issue.

I have observed customers reporting initial problems connecting to certain PLC models with V34 firmware, but there has also been feedback of successful communications after tuning the Citect.ini parameters. I'm not comfortable sharing that information here, as I don't want to bypass official support channels.

Longer term though, I think the best strategy is to transition you communications configuration to the OPCLX driver, since it will use an official Rockwell API to communicate with the PLC. There is definitely a risk that one day Rockwell decides to make a change that renders the ABCLX (reverse engineered protocol driver) non-functional.

Kind regards

Olivier
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