Hi all\nI 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.\nThe 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.\nI 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.\nI have been able to download the projects files from the colour screen.\nAny advice would be welcome.