6ES7241-1AH32-0XB0 New Original Siemens S7-1200 Plc Programming Controller module

2. Key Selling Points

1. Adds Standard RS485 Interface – Expands Communication Capability:Provides an additional RS485 port for S7-200 SMART CPU, overcoming native port limitations and enabling multi-device networking.

2. Supports MODBUS RTU Master/Slave – High Compatibility:Configurable as MODBUS RTU Master (active polling) or Slave (passive response), seamlessly connecting to drives, meters, and I/O modules with MODBUS support.

3. Freeport Mode for Custom Protocol Communication:Supports Freeport mode, allowing user-defined protocols (ASCII, binary) for integration with third-party devices like printers, barcode scanners, or custom instruments.

4. Enables Parallel Communication with HMI and Field Devices:When the CPU’s built-in port is used for HMI, CM 1241 can handle field device communication separately, avoiding conflicts and improving system efficiency.

5. Plug-and-Play Installation – Easy Setup:Mounts directly to the right of the CPU, powered via backplane bus, no external power required. DIN-rail mounted with screw terminals for reliable installation.

6. DIP Switch for Quick Parameter Configuration:Built-in DIP switches allow fast setup of MODBUS address, baud rate, parity, and other settings without programming.