Applies To:
  • CitectSCADA 5.xx, 6.xx, 7.00
  • CitectHMI 5.xx, 6.xx, 7.00

I am using dialup I/O with a modem configured for both dialin and dialout. However, I have found that if a remote device is currently dialling in (and the call is currently being established with my dialin/dialout modem) then CitectSCADA’s dialup subsystem goes into a state where it will not be able to dial anything. How can this be fixed?  

An issue has been identified in the dialup subsystem where the state machine could not handle an outgoing call while an incoming call is being established. This could cause the dialup system to go into a loop that meant it couldn’t perform dialin or dialout.

This problem has been resolved in v7.00.


scheduled remote i/o rtu dials in lock