We have a client whom requires a Siemens BMCS interface and im not sure if it is supported by CIS. They managed to get the PCI to control the cbus lighting but it was very slow and slowed the network down enough to miss several PACA messages. The Client wants to log the C-Bus PIRs to a excel spreadsheet and from there the Siemens BMCS can log whether the room is occupied. Does anyone know if this is possible or have done this before with Siemens. PS Where are you Phil Hodge? give me a call if you can.