PLC high redundancy Ethernet

Hi im going to be using 2x PM573 to do high redundancy. and the i have been told by our rep that to do this we need 2x CM579 (ethenet comication modules) but when i look in the manual (link below) it show that i can use the on board ethernet to run the high renduncy link. is this correct ?

https://library.e.abb.com/public/ca41...

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volz Rank: 2015

Asked 8 months ago

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Hi,

Refer my attachments, you will get a clear idea about HA system in ABB PLC.

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vigneshwaran92rce Rank: 134

Answered 8 months ago

Hi,

Refer this attachment, As per ABB recommandation On board ETH port only for UDP data Exchange.Better You will provide the CM579 module along with the PLC.

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