# Source Tightening Properties

Parameter | Description
--- | ---
Name | The name issued to the source tightening.
Selector mode | Control mode: An external source selects a tightening program by requesting an identifier number. If identifier number is linked to a corresponding socket in the socket selector, the tightening program is selected by lifting the socket. Confirm mode: The external signal is not enough to activate the tightening program. In this mode an additional identifier number for socket or end fitting tool (TAG) is linked to the tightening program and must be specified under an additional column in the list. When an identifier number is requested (by an external signal), the socket or TAG identified by the number specified in the Socket identifier column must be used to activate the corresponding tightening program.
Max consecutive NOK per program | On: The batch will advance even if a NOK tightening is performed. Off: Set Max consecutive NOK for the tightening. The batch will only advance if a successful tightening is performed.
Max consecutive NOK | Set the number of consecutive NOK results to be allowed. If the value is set to 0, there is no check performed for NOK tightenings. When reaching max consecutive NOK, the tool locks and the sequence execution is halted.
Batch control | Select how the source tightening is to be executed. Internal: Configure how many times a source tightening is to be repeated. External: Configure how many times a source tightening should be executed by using Open protocol or an external protocol. Any configuration change clears the source tightening to start over from a clean and known state (the batch count in the batch will be reset to 0). Ongoing tightenings are able to finish before the changes take effect.
Barcode Required | Yes: to start a tightening program, a barcode must be scanned first. No: no barcode scan is required to start a tightening program.