Multiple PLC nodes can be controlled by connecting multiple USB - I2C bridges (CY3240) to the same PC. But, the serial number for all the USB – I2C bridges should be different. To change the serial number of the USB - I2C bridge, the bridge needs to be programmed with one of the attached hex files (serial number 13, 14, or 15). This is done by connecting a MiniProg programmer to the 5-pin header on the bridge and running PSoC Programmer with one of the attached hex files.
To control multiple PLC nodes, open multiple instances of the Control Panel GUI. Every instance of the Control Panel GUI will show all the USB – I2C bridges connected to the PC. Selecting a different bridge in every instance of the Control Panel GUI will enable the user to control multiple PLC nodes from the same PC.