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

I am using dialup I/O and am finding that when I have more than one i/o device scheduled to be dialled (in the dial queue), the second one may attempt to dial before the first has completed the disconnection sequence (i.e. the modem has not yet hung up). This results in a failed call with error code 8200 (0x00002008) when dialup debug logging is enabled.  How can I make the second dial request wait until the first has completely finished?  

An issue has been identified in the dialup subsystem where the outgoing dial requests may be made before the modem has hung up. This is particularly noticeable when using modems that take a long time to hang up a call.

This problem has been resolved in v7.00.


scheduled remote i/o rtu dial out failed