Excha information RTU 560 800xA

Hi, We have a RTU 560 (slave) which is communication with a control center through IEC608705-104. How can we exchange information with RTU 560 and 800xA system. They said that we cannot use another IP protocol, because we will move the Control Centener ZOne.

Help please? Cant we use IEC61850?

And will we move the Contro Center Zone with two IP protocols? Will the slave be a master?