Controller Fieldbus
ToolsTalk 2 version 2.24 introduces Controller Fieldbus, which differs from a Fieldbus in one way: Controller Fieldbus is intended for controller-wide use and is shared by all Virtual Stations in a controller. Controller Fieldbus lets many Virtual Stations use the same incoming signal. This reduces the amount of required bandwidth, when compared with Fieldbus.
Controller Fieldbus provides a built-in signal-mapping feature by using Virtual Fieldbus. The purpose of Virtual Fieldbus is to map individual signal configurations into logical groups of signal configurations. Virtual Fieldbus provides a point from where Virtual Stations are mapped to signal configurations. A signal configuration can be mapped to many Virtual Fieldbuses, which lets Virtual Stations share the same signal configurations.
