# Fieldbus Lock Loosening - 20021

A Virtual Station is locked when starting a loosening if the signal is set from a connected and supported accessory.
An ongoing loosening is aborted immediately when Fieldbus Lock Loosening is set to True, due to the Stop Drive setting.

Converter | Signal Type | Value Type | Size Min [bit] | Size Max [bit]
--- | --- | --- | --- | ---
Standard | State | Boolean | 1 | 1
Invert | State | Boolean | 1 | 1

To avoid duplicating signals, it is possible to define Value Converters.

Converters are used to support more than one representation of the same signal (for example Angle/Torque Status can both be represented bitwise or as a status character).

## Devices

- Fieldbus: TRUE

- Indicator Box: FALSE

- Internal I/O: FALSE

- Operator Panel: FALSE

- Tool Functions: FALSE

- ST Selector: FALSE

- Stacklight: FALSE

- TLS Tag: FALSE

- I/O Expander: FALSE