Siemens 6ES7 441-2AA03-0AE0 Communication Processor

Siemens 6ES7 441-2AA03-0AE0 Communication Processor is a CP-441-2 module for the SIMATIC S7-400 family that provides two independent serial communication channels through two interface slots. It requires two IF963 interface submodules to realize the chosen physical interfaces (for example 6ES7 963-1AA00-0AA0 RS232, 6ES7 963-2AA00-0AA0 TTY, or 6ES7 963-3AA00-0AA0 RS422/RS485). The CP-441-2 supports a maximum data rate of 115.2 kbit/s for point-to-point connections to serial peripherals or other PLCs, enabling serial networking within an S7-400 rack. It includes integrated drivers such as the 3964(R) data link procedure, ASCII driver, RK512 computer link, and a printer driver, providing broad compatibility with common serial devices. This module is designed to slot into an S7-400 backplane alongside other CPUs and I/O modules, extending the system’s serial communication capabilities without additional gateways or adapters. Applications typically include connecting to external devices or other PLCs over RS232, RS485, or RS422 networks via the appropriate IF963 submodules and the two CP-441-2 channels.