Siemens 6ES7441-2AA03-0AE0 SIMATIC S7-400 IO Module

Siemens 6ES7441-2AA03-0AE0 is a CP 441-2 communications module for the SIMATIC S7-400 system, providing two serial channels in a point-to-point configuration for the CP 4 interface in the S7-400 backplane. It enables two independent serial links with a data rate up to 19.2 kbit/s, allowing the S7-400 PLC to communicate with remote devices, peripherals, or other controllers over a dedicated serial connection. The device is explicitly described as a two-channel CP 441-2 communications module for point-to-point connections and supports parameter assignment and configuration in the STEP 7 engineering environment. This part number, 6ES7441-2AA03-0AE0, identifies a SIMATIC S7-400-compatible CP module designed for serial point-to-point communication within Siemens automation projects.