SPC - Statistical Process Control
The purpose of the built-in SPC function is to give the operator, or quality control staff, data that lets them judge the stability and capability of the assembly process according to standard SPC rules.
By configuring the tool's SPC function it is possible to simplify and do the work directly on the tool without the need of external software.
Since it is possible to use program monitors within the tool as a SPC variable, it is necessary to specify that only variables controlled by the tool show the performance of the system. Other variables show mainly results from other processes. For example, if a torque value is applied to a joint, then SPC of the final torque value and the related results - such as Cp and Cpk - show the performance of the tool on that joint.
Statistical calculations are based on old data stored in the tool.
