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Product description

Siemens 6ES7 441-1AA03-0AE0 is a CP 441-1 communication processor for the SIMATIC S7-400 automation system. It adds a serial point-to-point connection to the S7-400 station through one configurable interface slot. Depending on the installed IF-963 interface module, the physical connection can be configured as RS 232C, 20 mA TTY or RS 422/485. The CP supports integrated ASCII, 3964(R) and printer protocol drivers, making it suitable for connecting serial devices, protocol converters, operator panels or printers in existing systems. Maximum transmission rate is 38.4 kbit/s. With a 20 mA TTY interface, the integrated drivers support up to 19.2 kbit/s; RS 232 and RS 422/485 support up to 38.4 kbit/s. Siemens specifies up to eight connections in total and extended S7 communication. Parameters are configured in STEP-7 through dedicated dialogs; the CP-441 parameter set V5.0 or later is documented for the AA03 version. On the S7-CPU memory card, each interface requires 1 to 5 kB for parameters and optionally up to 55 kB for message texts. Without an interface module, the unit draws a maximum of 700 mA from the 5-V backplane bus. It measures 25 mm wide, 290 mm high and 210 mm deep and weighs approx. 720 g, plus approx. 100 g for the interface module. Before replacement, compare the exact order number, installed IF-963 module, electrical interface, protocol, baud rate and STEP 7 parameter set. These checks support continued operation of the existing serial connection without unnecessary changes to the system architecture.

Siemens 6ES7 441-1AA03-0AE0

Specifications

Manufacturer Siemens
Product series SIMATIC S7-400 / CP 441-1
Manufacturer/Order/Identification number 6ES7 441-1AA03-0AE0
Device type Communication processor for point-to-point connections
Communication channels 1 channel, configurable
Interface modules IF 963 for RS 232C, 20 mA TTY or RS 422/485
Maximum transmission rate 38.4 kbit/s
RS 232 transmission rate Up to 38.4 kbit/s with 3964(R), ASCII or printer driver
RS 422/485 transmission rate Up to 38.4 kbit/s with 3964(R), ASCII or printer driver
20 mA TTY transmission rate Up to 19.2 kbit/s with 3964(R), ASCII or printer driver
Integrated protocol drivers 3964(R), ASCII and printer
Supported printers HP DeskJet, HP LaserJet, IBM Proprinter and user-defined printers
Communication functions Extended S7 communication
Number of connections 8 in total
Engineering STEP 7 with dedicated parameter dialogs; AA03 parameter set V5.0 or later
Memory required per interface 1 to 5 kB for parameters; 0 to 55 kB for message texts
5 V DC backplane-bus current Maximum 700 mA without interface module
Dimensions 25 x 290 x 210 mm
Weight Approx. 720 g; interface module adds approx. 100 g
Module version AA03, documented from product version 01
Control cabinet with PLC modules and automation components
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FAQ

Frequently asked questions

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Which serial interface does Siemens 6ES7 441-1AA03-0AE0 provide?

The CP 441-1 has one configurable interface slot. The installed IF-963 module determines whether the electrical interface is RS 232C, 20 mA TTY or RS 422/485.

Which protocols does the CP 441-1 support?

ASCII, 3964(R) and a printer driver are integrated. The achievable transmission rate depends on the selected electrical interface.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

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