I am not terribly familiar with the EIP nodes so if they haven't provided a means to connect/disconnect on demand, then probably not.
However, you can easily block or interrupt the flow of messages out of the EIP node.
This can be achieved with "gate" type contrib nodes or using built in nodes
Working example : Cancel inputs for a period of time - #6 by Steve-Mcl
Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
The OpenJS Foundation | Terms of Use | Privacy Policy | OpenJS Foundation Bylaws | Trademark Policy | Trademark List | Cookie Policy