Virtual Devices
NetLinx supports the concept of virtual devices. A virtual device is a device that does not physically exist but merely represents one or more devices.
- Virtual devices carry a device number ranging from
32,768to36,863, a port number of1, and a system number of0. - Virtual devices are devices that cannot be taken off the bus.
- By listing a virtual device as the first device in a DEFINE_COMBINE
statement or as the first device in a COMBINE_DEVICES,
COMBINE_LEVELS, or COMBINE_CHANNELS statement, the
abnormalities seen in Axcess
DEFINE_COMBINEstatements are eliminated.