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XACT Servo Programming

New in 2.4

Programs FrSky XACT servos over the F.Bus wire they're connected on -- no separate programming cable.

XACT Servo Programming tab

The tab appears when an F.Bus link is set up: either F.Bus as the receiver protocol, or a UART set to F.BUS (master) on the Configuration tab. See FBUS Master.

Using it

  1. Disarm. The flight controller refuses to scan or write while armed.
  2. Click Scan for Servos. Every XACT servo found on the bus is listed with its channel, Physical ID and App ID.
  3. Select a servo, change its parameters -- for example direction (clockwise / anticlockwise) and working mode (angle, range or rotate) -- and write them back.

Unique IDs

Every XACT servo on the bus needs its own Physical ID. Two servos with the same ID show up as one, and if they also share an App ID the tool can't tell them apart. Factory-fresh servos often share defaults, so connect and set them up one at a time.