6ES7441-1AA04-0AE0 SIMATIC S7-400 CP441-1 | Point-to-Point 38.4 kbps

Product Overview

• Siemens 6ES7441-1AA04-0AE0 – CP 441-1 communications module for SIMATIC S7-400 systems
  • Provides 1 point-to-point communication channel
  • Supports RS232, RS422/485, and 20mA (TTY) interfaces
  • Includes printer driver support for direct printing
  • Ideal for connecting barcode readers, printers, and third-party devices

Technical Specifications

• Brand & Model
  • Brand: Siemens
  • Model: 6ES7441-1AA04-0AE0
  • Series: SIMATIC S7-400
  • Product type: CP 441-1 Communications Module
• Power & Current
  • Backplane current (5V): 600mA max
  • Requires 24V DC for interface modules
  • Power loss: 0.3W typical
  • Interface module power: 100mA (5V) + 45mA (24V) for 20mA TTY
• Interfaces & Cable Length
  • Number of interfaces: 1 channel (configurable)
  • RS232 (V.24): max 10m cable length
  • RS422/485 (X.27): max 1200m cable length
  • 20mA TTY: max 1000m cable length
• Communication Protocols & Speed
  • Maximum transmission rate: 38.4 kbps
  • 3964(R) protocol: Supported
  • ASCII protocol: Supported
  • Printer driver: Supported
  • RK512 protocol: Not supported
  • Customer-specific drivers: Not reloadable
• Printer Support
  • HP Deskjet, HP Laserjet, IBM Proprinter
  • User-defined printer configurations possible
• Memory Requirements
  • Parameters: 1-5 KB on CPU memory card
  • Message texts: 0-55 KB
• Physical & Environmental
  • Dimensions: 25mm x 290mm x 210mm
  • Weight: 800g (1.76 lbs) + 100g interface module
  • Configuration software: STEP 7 (own parameter assignment forms)

Expert Review

• Field engineer’s insight: This module is a workhorse for serial communication. Many plants use it to connect barcode scanners, weigh scales, and label printers. The 38.4 kbps speed is sufficient for most data logging and printing tasks. Always match the interface type to your device – RS232 for short distances, RS422/485 for long runs.

Manager’s Insight

• Why choose this module: The 6ES7441-1AA04-0AE0 offers flexibility with three interface options in one module. The printer driver support saves money on external print servers. One channel is enough for most applications – choose CP 441-2 for two channels.

Suitable Devices & Applications

• Compatible systems: SIMATIC S7-400 (all CPUs)
• Common applications:
  • Barcode reader and scanner integration
  • Weigh scale data acquisition
  • Label and report printing (HP, IBM printers)
  • Legacy serial device connectivity

Installation Guide

• Turn off all power to the S7-400 rack
• Insert the CP 441-1 module into any available slot
• Install the required interface module (RS232, RS422/485, or 20mA TTY)
• Connect the 24V DC power supply for the interface module
• Wire serial cables to the interface module connector
• Configure parameters using STEP 7 software
• Load the configuration to the CPU memory card

Maintenance & Debugging

• Check LED status indicators on the module
• Use STEP 7 diagnostic buffer for error messages
• Verify cable connections if communication fails
• Check interface module seating and power supply

Package Contents

• 1x 6ES7441-1AA04-0AE0 CP 441-1 communications module
• 1x configuration package on CD
• Interface module not included (sold separately)

Warranty & Shipping

• 12-month warranty against manufacturing defects
• Ships within 12-24 hours on business days
• Express delivery via FedEx, UPS, or DHL

Frequently Asked Questions (FAQ)

• Q: What interface modules work with this CP 441-1?
  • A: The module supports 20mA TTY, RS232 (V.24), and RS422/485 (X.27) interface modules.
• Q: Can I use this module with a barcode scanner?
  • A: Yes, many plants use it for barcode scanner integration. Select the correct protocol (3964R or ASCII) and interface type.
• Q: Does this module support Modbus communication?
  • A: No, Modbus is not natively supported. Use CP 441-2 with Modbus driver or external gateway.
• Q: What is the maximum cable length for RS232?
  • A: RS232 supports up to 10 meters. For longer distances, use RS422/485 (1200m) or 20mA TTY (1000m).
• Q: Why is my printer not printing from this module?
  • A: Check the printer driver selection – this module supports HP Deskjet, HP Laserjet, and IBM Proprinter. Verify the baud rate matches your printer setting.

Buying Guide & Selection Advice

• Choose 6ES7441-1AA04-0AE0 for single channel point-to-point communication.
• Need two channels? Select 6ES7441-2AA04-0AE0 (CP 441-2) instead.
• For high-speed communication, consider CP 441-2 with 115.2 kbps support.
• Always verify your device’s interface type and protocol before ordering.

Comparison with Similar Models

• 6ES7441-1AA04-0AE0 vs. 6ES7441-2AA04-0AE0
  • Both are CP 441 communication modules for S7-400
  • 6ES7441-1AA04-0AE0 has 1 channel
  • 6ES7441-2AA04-0AE0 has 2 channels
  • CP 441-2 supports higher transmission speeds (115.2 kbps)
  • CP 441-2 also supports RK512 protocol
  • Price difference: CP 441-2 costs approximately 40% more
  • Choose CP 441-1 for single device connections

Contact & Support

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825 (click to chat)

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