6ES7441-2AA04-0AE0 Siemens 2-Channel Point-to-Point Module

Introduction to the Siemens 6ES7441-2AA04-0AE0

This CP 441-2 module provides two variable interfaces, enabling flexible connections to printers, drives, and other serial devices. With support for 20 mA (TTY), RS 232C, and RS 422/485, it adapts to diverse industrial environments.

Key Features and Technical Specifications

• Two variable interfaces support 20 mA (TTY), RS 232C, and RS 422/485 physics.
• Transmission rates up to 115.2 kbit/s, distributed across both interfaces.
• Integrated protocol drivers include 3964 (R), ASCII, RK512, and printer support.
• Customer-specific drivers are reloadable for custom applications.
• Supply voltage: 5 V DC and 24 V DC, with max input current of 600 mA from backplane bus.
• Power loss: typical 0.3 W.
• Dimensions: 25 mm width, 290 mm height, 210 mm depth.
• Weight: approx. 720 g (interface module: 100 g).

Applications and Use Cases

In manufacturing, the 6ES7441-2AA04-0AE0 is used for connecting S7-400 PLCs to barcode scanners, weigh scales, and industrial printers. Moreover, the module handles ASCII and RK512 protocols, simplifying integration with legacy equipment. For engineers upgrading older point-to-point links, this module offers a modern, reliable path.

Installation and Setup

Mount the module in a S7-400 rack and connect the backplane bus. Use shielded cables for all interfaces to ensure signal integrity. Configure the module using STEP 7, which includes dedicated parameter assignment forms. Verify that the 5 V and 24 V supplies are within specified limits before powering up.

Maintenance and Reliability

Regularly inspect cable connections and shielding for wear or corrosion. Monitor the module's power consumption—max 600 mA from 5 V—to avoid overloading the backplane. Because the module has no moving parts, it requires minimal routine care. Periodically check that firmware and drivers are up to date to maintain protocol compatibility.

Compatibility and Integration

Designed for the SIMATIC S7-400 family, the 6ES7441-2AA04-0AE0It supports 3964 (R), ASCII, RK512, and printer protocols, and can load customer-specific drivers. The module also works with HP-Deskjet, HP-Laserjet, and IBM-Proprinter printers, making it versatile for reporting tasks.

Troubleshooting Common Issues

If communication fails, first verify that the interface physics match the connected device. Check that the transmission rate is set correctly—for example, 19.2 kbit/s max for TTY with 3964 (R). Ensure that cable lengths do not exceed the specified maximums: 1000 m for TTY, 10 m for RS 232, and 1200 m for RS 422/485. Also confirm that the backplane bus provides sufficient current.

Product Support and Availability

AutoDCSTech offers the 6ES7441-2AA04-0AE0 for immediate shipment. Contact our team for availability and lifecycle status before ordering.