6ED1055-1NB10-0BA2 New Original Siemens LOGO! Plc Programming Controller module

2. Key Selling Points

1. Multifunctional Communication Signal Board (SB): A front-mounted expansion board designed for Siemens S7-1200 PLCs, integrating an RS485 serial interface and a PROFIBUS DP interface, providing essential industrial fieldbus connectivity.
2. PROFIBUS DP Master/Slave Support: Features a built-in PROFIBUS DP interface configurable as either a DP master or DP slave, enabling seamless integration of distributed I/O, drives, and instruments into existing PROFIBUS networks for smooth interoperability with legacy automation systems.
3. Integrated RS485 Serial Communication: Includes a standard RS485 port supporting MODBUS RTU (master/slave mode), allowing connection to third-party serial devices such as intelligent instruments, weighing modules, and HMIs—enabling concurrent multi-protocol communication.
4. Plug-and-Play, Space-Saving Design: Plugs directly into the front SB slot of the S7-1200 CPU—no external power required and no use of right-side I/O expansion slots. Its compact design maximizes space efficiency in control cabinets.
5. Enhanced Compatibility & Flexibility: Ideal for retrofit projects or hybrid networks requiring integration with existing PROFIBUS devices (e.g., S7-300, ET200M, G120 drives), significantly improving the S7-1200's communication adaptability in complex industrial environments.