Currently we're using ABB robo with a automatic tool changer option. When robo engage that tool will be connected to scalance and enables communication. But we had a problem that when it connects the communication with that io module takes 10-15 seconds to become healthy.

Later we did uncheck this "Enable autonegotiation" in port options through full duplex mode in scalance properties and then it goes healthy within 1-2 secs.

Can anyone explain about this property? What it actually does?

Hello santhosh sundaram

In this FAQ you will find a good description:

https://support.industry.siemens.com/cs/ww/en/view/15048972

Bye Murof