Hi all I have a Clipsal network of some size (76 units) comprising dimmers, relays, 1 colour touch screen, a couple of monochrome screens, light switches etc. The system was installed about 12 years ago, but the colour touch screen was replaced about 5 years ago. I cannot detect any PCI/CNI units on the network so I assume the installer used his own when setting up. The colour unit has both a serial port and ethernet port and I have no problem using the PICED software to update any programming changes on the unit. I cannot open the network and query the units using the Toolkit software. So my question is, is it possible using the 5000CTC3? Or do I have to get hold of a dedicated interface to make any changes. I would like to add another light switch but I guess I could just use the "learn" feature of the switch unit itself. I have been able to download the projects files from the colour screen. Any advice would be welcome.