The CB 1241 communication board RS 485 is used for fast, high-performance serial data exchange via point-to-point connections.

Point-to-point coupling is possible, for example, to:

• SIMATIC S7 automation systems and systems of many other manufacturers
• Printers
• Robot controls
• Modems
• Scanners
• Bar code readers, etc.

The CB 1241 communication board RS 485 can be plugged directly into all SIMATIC S7-1200 CPUs.

This provides users with the following advantages:

• Optimal adaptation:
  With communication boards, users can optimally adapt their controllers even to more complex tasks.
• Flexibility:
  If the task is expanded subsequently, the controller can be upgraded. Updating of the user program is extremely simple.
• Use where space is limited:
  The communication boards are directly plugged into the CPU, enabling the controller to be expanded without taking up any additional space.