The CP 441 communications processor is used for fast, powerful serial data exchange over point-to-point connections, off-loading the CPU from communications tasks.

Point-to-point connection is possible, for instance, for:

• SIMATIC S7 and SIMATIC S5 programmable controllers, and systems from many other manufacturers
• Programming devices and PCs
• Printers
• Robot controls
• Scanners, bar code readers, etc.

The communications processor come in two versions:

• CP 441-1:
  With one variable interface, for simple and low-cost point-to-point connections.
• CP 441-2:
  With two variable interfaces, for high-performance point-to-point connections.