Having Trouble Opening Network

Hello, only just completed my cbus basic course. Having trouble opening the network. It is coming up with an error saying "PCI unable to reset. cannot open network" any ideas?? I am connected via a usb to a 5500 CNU PCI. Any help would be much appreciated.

thanks

 

Is this an existing network that used to work or a new one? Is it a USB PCI or serial RS232 PCI you are connecting to via a USB to serial adapter? (the serial PCI is fussy about these).

Things to check (they will be in your course notes): Sufficient Power (measure the voltage). Correct burden. Small networks need a burden. It can be a hardware burden plugged into the network somewhere, or a software burden enabled on unit 1 (normally the PCI). If the PCI isn't unit 1 and you don't have a hardware burden you will have problems connecting. Check all cabling carefully. If it is a big system, partition it down the the PCI and a few devices (making sure there is enough power of course), then add sections back a bit at a time. Be methodical.

 

thanks alot for responding Ashley that is great information. It is a USB PCI, connected with the type B usb cable( i think its called).Ive just recently added the PCI into the install , as there was currently no PCI. Iam Adding in the PCI to program only 2 light circuits and some Fans which have been also recently added into the installation. I will try out everything you have said first thing in the morning. Thanks for the help