Applies To:
  • CitectSCADA 6.xx, 7.xx

I have two MPI (serial) networks. Each network has its own board defined in Citect to communicate to the PLC's.  I would like to add a 3rd network so that I can commision the PLC's individually over to an Ethernet network. However when I add a 3rd board in Citect I get the error 'More than 2 boards defined in Citect'.  

The reason for this error is because there is a limitation of 2 boards hardcoded in the S7NT driver prior to v2.06.09.000, meaning a 3rd board cannot be defined in the older versions of this driver.  Therefore we would recommend that you upgrade to the S7NT v2.06.09.000 driver or later. 

Drivers can be downloaded from our 'Driver Web' here >> .