6ES7297-0AX30-0XA0 New Original Siemens S7-1200 Plc Programming Controller module

2. Key Selling Points

1. Adds RS485 Port Without Using Expansion Slot:Plugs directly into the CPU’s top slot, preserving the right-side module slots for I/O expansion, maximizing system flexibility and integration.

2. Supports MODBUS RTU Master/Slave – High Compatibility:Configurable as MODBUS RTU Master (polling drives/meters) or Slave (connected to HMI/SCADA), widely compatible with industrial devices.

3. Enables Dual Communication Ports – HMI & Field Devices Separated:Allows the CPU’s built-in port to connect to HMI while SB CM01 handles field device communication, eliminating conflicts and improving reliability.

4. Freeport Mode for Custom Protocol Integration:Supports Freeport communication, enabling user-defined protocols for integration with printers, barcode readers, or non-standard equipment.

5. Plug-and-Play Installation – Easy Setup:No external power or complex wiring needed. Simply inserts into the CPU’s SB slot, automatically recognized, and DIN-rail mounted for compact design.