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

I have configured 32 ports to use the SBus protocol, but if I define more than 32 ports I get the error:

"Too many channels opened"
"Generic 000020 Driver 00000017 (0x00000011)"

Is this a limitation to the SBus protocol to support up to 32 channels only?

Older versions of the SBus driver can support up to 32 channels only.
An enhancement has been made to the SBus driver in version (and included in subsequent versions) to support up to 250 channels.

SBus, Maximum Channel