We often get asked, "How can I run more than one instance of a driver to communicate with multiple PLCs connected to different serial ports?" The answer is quite simple. You only have to copy the driver files and rename them.
For example, let's say that you have more than one serial-connected MODBUS PLC and you need additional instances of the MODBU driver. Simply go to the DRV folder of the InduSoft installation folder (typically C:\Program Files\InduSoft Web Studio v7.1\Drv or C:\Program Files (x86)\InduSoft Web Studio v7.1\Drv), make copies of the four files MODBU.dll, MODBU.ini, MODBU.msg, and MODBU.pdf, and rename the copies MODBA.dll, MODBA.ini, MODBA.msg, and MODBA.pdf. Repeat as many times as necessary. The new driver names must be unique and cannot be longer than five characters.
The new drivers will count against the maximum driver count in your license so you'll need to make sure that your license supports the additional drivers. You can see how many drivers you have licensed by opening Help >> Support from the InduSoft Web Studio ribbon menu. If you need to add more drivers, then you will need to contact your InduSoft distributor.
Larry Combs
InduSoft Technical Support Team
