Hello,
We got a new SLS for our existing project and that SLS comes with software revision 3.3.6.1 and Hardware revision 8.44 and since the all of our SLS are running with lower software revision (3.3.0.2).
I've tried to downgrade the SLS and go to the below message
Alert!
A bad status was received from the I/O card. Error = 64
retried the request or contact your system administrator
After click ok
there will be another message showing
An invalid response was received from the I/O card.
Retried the request or contact your system administrator
The system is running on DeltaV 11.3.1.4312, and the SLS Hotfix installed on the Proplus is SLS_08