Siemens 6ES7441-1AA03-0AE0 S7-400 Communication Module

6ES7441-1AA03-0AE0 | Siemens SIMATIC S7-400 CP 441-1 Point-to-Point Communication Module

Technical Specifications

• Brand: Siemens
• Model: 6ES7441-1AA03-0AE0
• Series: SIMATIC S7-400
• Category: Point-to-Point Communication Module
• Manufacturer: Siemens
• Supply voltage: 5 V DC and 24 V DC
• Input current from backplane bus: 5 V DC, maximum 700 mA without interface module
• Interface modules: 20 mA TTY, RS 422/485 X.27, RS 232C V.24
• 20 mA TTY power consumption: Maximum 300 mA at 5 V and 45 mA at 24 V
• RS 422/485 power consumption: Maximum 300 mA at 5 V
• RS 232C power consumption: Maximum 300 mA at 5 V
• Memory requirements: 1 to 5 KB for parameters and 0 to 55 KB for message texts per interface
• Number of interfaces: 1 variable interface
• Supported interface physics: 20 mA TTY, RS 232C V.24, RS 422/485 X.27
• Shielded cable length: 1,000 m for 20 mA TTY, 10 m for RS 232, 1,200 m for RS 422/RS 485
• Maximum transmission rate: 38.4 kbit/s
• Supported printers: HP-Deskjet, HP-Laserjet, IBM-Proprinter, and user-defined models
• Integrated protocol drivers: 3964 R, ASCII, and Printer
• 20 mA TTY transmission rate: Maximum 19.2 kbit/s with 3964 R, ASCII, or printer driver
• RS 422/485 transmission rate: Maximum 38.4 kbit/s with 3964 R, ASCII, or printer driver
• RS 232 transmission rate: Maximum 38.4 kbit/s with 3964 R, ASCII, or printer driver
• Communication functions: S7 extended communication
• Total connections: 8
• Configuration software: STEP 7 with dedicated parameter assignment forms
• Dimensions: 25 mm width, 290 mm height, 210 mm depth
• Weight: Approximately 720 g, interface module approximately 100 g

Performance and Environmental Capabilities

• The module delivers stable point-to-point communication for industrial control systems.
• It supports long shielded cable runs for 20 mA TTY and RS 422/485 applications.
• The design helps resist electrical noise common in factory automation environments.
• Users can select the interface physics to match specific field devices and printers.
• The CP 441-1 handles serial protocols such as 3964 R and ASCII without extra hardware.
• Engineers can configure parameters through STEP 7 for fast commissioning and diagnostics.

Installation Guide

• Mount the module in a compatible SIMATIC S7-400 rack slot.
• Confirm the backplane bus provides 5 V DC and 24 V DC as required.
• Select the correct interface module for 20 mA TTY, RS 232C, or RS 422/485.
• Use shielded cables and respect the maximum cable length for each interface type.
• Connect the field device or printer according to the pin assignment for the chosen physics.
• Configure the module in STEP 7 with the correct protocol and transmission rate.
• Verify communication with a short test message before full production use.

Package List

• 1 x Siemens 6ES7441-1AA03-0AE0 CP 441-1 communication module
• 1 x Configuration package on CD
• 1 x Interface module, approximately 100 g, when included with the selected variant

Shipping and Support

• We keep this module in stock and ship it within 5 days after order confirmation.
• We ship by FedEx, UPS, and DHL for reliable international delivery.
• We accept returns within 30 days under our standard return policy.
• Contact us for bulk orders, spare parts, or technical selection support.

FAQ

• Q: What is the condition of the 6ES7441-1AA03-0AE0?
  A: We supply it as brand new original stock.
• Q: How many interfaces does this CP 441-1 module offer?
  A: It provides one variable interface for point-to-point communication.
• Q: Which interface physics can I use?
  A: You can use 20 mA TTY, RS 232C V.24, or RS 422/485 X.27.
• Q: What is the maximum transmission rate?
  A: The module supports up to 38.4 kbit/s depending on the interface and protocol.
• Q: Which protocols does the module support?
  A: It supports 3964 R, ASCII, and printer drivers.
• Q: What is the maximum cable length for RS 422/485?
  A: Shielded RS 422/RS 485 cable can reach 1,200 m.
• Q: How many total connections can the module handle?
  A: It supports up to 8 connections overall.
• Q: What configuration software do I need?
  A: You need STEP 7 with the dedicated parameter assignment forms.
• Q: How much does the module weigh?
  A: The module weighs approximately 720 g, and the interface module weighs about 100 g.
• Q: When do you ship, and which carriers do you use?
  A: We ship in-stock items within 5 days by FedEx, UPS, or DHL.

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