I am leading a student team that is installing a sophisticated HVAC system into a solar powered house. The house is an entry into the Department of Energy's Solar Decathlon. We are controlling a mini-split HVAC system with separate ERV and de-humidification. We will also be controlling the PV array, lighting, domestic (solar) hot water system, through the network.
The devices that we are controlling speak Modbus-RTU, BacNet, and Lonworks. We are trying to tie all of these disparate devices to a PC running multiple instances of OPC servers (one for each network "flavor"). I have gotten the Modbus running, and am close with the BacNet.
I have not started with the Lonworks yet. I have an Invensys MN800 that speaks Lonworks. This may be our only Lonworks device. Can I tie this device directly to the PC or do I need to establish a Lonworks router for the device?
If I have to have a router and specific interface card in the PC, what is the cheapest way to go? Do most routers come with an OPC server?
Thanks for your help.