Siemens 6SE9996-0XA21 MMI PROFIBUS T-Connector

Siemens 6SE9996-0XA21 CM2/MMI PROFIBUS T-CONNECTOR is a PROFIBUS DP interface accessory designed for Siemens CM2 MMI operator panels in the CB15/CB155 family, enabling a reliable connection to a PROFIBUS network. In Siemens CB15/CB155 installation literature, the PROFIBUS connection is normally made via this T-connector, establishing the standard path for linking the CM2 MMI to the fieldbus. The kit typically ships as a complete solution and includes Cable B, providing the essential lead to connect the bus to the CM2 MMI. With the T-Connector in place, the CM2 MMI can exchange data with PLCs and other PROFIBUS devices on a DP network, supporting communication of process values, alarms, and device status between the operator interface and the plant controller.