Each SIGMA unit can manage up to 12 ALPHA units. Due to the capability of using one of the multiple Fieldbus technologies, it is used as a master.
DeviceNet, enabling the control and management of a full station; optionally, it can incorporate the Profibus connectivity mode. It can integrate other compatible peripherals, including I/O expansion, socket tray, bar code reader, tact limiters, lights and others.
Each SIGMA unit has a standard Ethernet port for network connection, to enable configuring, analyzing and receiving tightening data - which allows full traceability of the products.