SIMATIC S7-400 · CP 441-2
Two-channel point-to-point communications processor for configurable serial connections in S7-400 systems.
Siemens 6ES7441-2AA03-0AE0 is a SIMATIC S7-400 CP 441-2 communications module for point-to-point connections. Siemens identifies two communication channels and includes the configuration package on CD. The module is used where an S7-400 station must exchange serial data with compatible external devices through correctly selected interface modules, wiring and protocol configuration.
Family: SIMATIC S7-400
Module: CP 441-2
Channels: Two
| Commercial item | Procurement statement |
| Supply status | Siemens states that 6ES7441-2AA03-0AE0 is no longer available. |
| Availability | Availability, revision and supplied condition must be checked against the complete article number. |
| Warranty | One-year warranty, subject to the written quotation and supplied condition. |
| Verified item | Official Siemens data |
| Manufacturer | Siemens |
| Product family | SIMATIC S7-400 |
| Product type | CP 441-2 communications module |
| Primary function | Point-to-point connections |
| Communication channels | 2 |
| Configuration package | Included on CD |
| MODBUS driver baud rates | 300 to 76800 bit/s; additionally 57600 and 115200 bit/s for this order-number generation |
| Net weight | 0.952 kg |
| Packaging dimensions | 23.30 × 30.10 × 3.70 cm |
| Export classification | AL: N / ECCN: N |
| Country of origin | Germany |



The CP 441-2 supports serial point-to-point communication between an S7-400 station and compatible external equipment. Typical engineering work includes selecting the correct interface module, assigning protocol parameters, configuring send/receive handling and validating the partner device’s electrical interface and data format.
Do not treat another CP 441 or CP 441-2 article number as a direct replacement. Confirm the exact order code, installed rack and CPU, interface submodule, protocol driver, STEP 7 project, cabling, baud rate, character frame and partner-device requirements.
Siemens lists the exact article as PM500: Discontinued Product or end of PLM & Support, with end of product lifecycle since 01.11.2010. Siemens also states that the product is no longer available.
It is a SIMATIC S7-400 CP 441-2 communications module for point-to-point connections.
The official Siemens product description specifies two channels.
Yes. Siemens states that the configuration package is included on CD.
Siemens documentation identifies loadable MODBUS master and slave drivers; licensing and project configuration must be checked.
No. Confirm the full code, interface modules, protocol, project configuration and partner-device wiring first.
Send the exact order code, system details, product photos, quantity and destination for availability and compatibility review.
Detailed identification, compatibility review and dispatch evidence for Siemens 6ES7441-2AA03-0AE0 requirements.
Exact Product IdentificationWe verify the complete Siemens code, product family, hardware identity and visible nameplate before confirming the unit. |
Compatibility ReviewSystem version, interface requirements, software context, wiring and replacement constraints are reviewed with the buyer. |
Dispatch EvidenceAvailable label, connector, enclosure, package and accessory photographs can be reviewed before shipment. |
Industrial spare-part procurement requires more than matching a shortened model reference. Our workflow separates official product data from application-specific assumptions, then checks the complete order code, installed-system context, required interfaces, software or firmware dependencies, electrical details, included accessories and dispatch evidence. This reduces preventable ordering errors while giving maintenance teams a clear record for internal approval.
Order-Code ControlThe exact 6ES7441-2AA03-0AE0 identifier stays attached to every review, quotation and packing note. |
Engineering ContextWe request the installed system, interface, configuration and revision details before suggesting compatibility. |
Condition TraceabilityVisual evidence, supplied accessories and condition descriptions are organized into a reviewable procurement record. |
Global CoordinationExport packing, destination documents, tracking and after-sales communication support international teams. |
| Step | Stage | What We Check |
| 01 | Requirement Capture | Complete article number, quantity, destination, installed-unit photos and machine context. |
| 02 | Compatibility Review | Interface, software, firmware, power, wiring, mechanics and project requirements. |
| 03 | Evidence Check | Nameplate, connectors, enclosure, package, accessories and available condition evidence. |
| 04 | Dispatch Coordination | Protective packing, shipping documents, destination details and after-sales references. |
Send the full order code, installed-system details, product photos, quantity and destination for a focused compatibility and supply review.
A mixed-brand reference list randomly selected from the approved model files for wider maintenance sourcing.
These 70 entries are independent references, not replacements for Siemens 6ES7441-2AA03-0AE0. Confirm manufacturer, complete model, electrical function, revision and system compatibility for every request.
| 6GK5208-0HA10-2AA6 | M10674-686 | SOV680135 | VJP-4E | EV45 5363 |
| EX1N32ER | CRP 93200 CRA932 00 | ABB 1SAZ211201R1035 TA25DU-5.0 | RS232/RGYS00MBP4SE | MCF40A0022-5A3-4-00 |
| TM3DQ32UK | T3-4AO | ABB 991AA23G01 B FT-1 | S261-22I RLA261T | 1210 P 70-778-01 |
| NJ5-18GM-N | SFC200-SCS | TA430 | 5802 | 6804W |
| D1082DMDAF2,16089412.SGDM | ABB 1SAZ211201R1031 | HDCM1 | RGYS00MBP4SE | OP30HONS |
| HMIGTO2300 | ABB APBU-44C APBU-44CE | SLXPC-BN-MB-22 | 85616 MKN 050-230 | BTA-801 WRR-855 |
| ADAP-KOOL | LFC7530/00 | 626-668 MHz/527483/2099 | 3/209 GHG137 | 302 0-073-0015-2 |
| UC400,X13651492-02 | ABB DC532 1SAP240100R0001 | DNC3102-B4RP10B | UDS1100002-01 | 8827790000 |
| KL4502X1-DA1 12P4986X052 | ADV551-P60 ADV551 | 10160-1883-01 | IEM-3000-8FM | 0-073-0201-1 |
| ION7300-DISPLAY | FL-601 | LBB4540/04 F01U508294 HW04/02 WK:2017 | DPS-750XB E98791-010 | XBT-200 |
| CDI161 | 5714C | 2CDG110132R0011 | IE-3000-8TC | SNZ4052K |
| MTL5546Y | NA200T IZMX-RP16A-200 65A2674G03 | 1SAP120600R0001 | 3200VSI,M3200-010210-07604 | 7PU4020-1AJ20 |
| TST8801 | CDCB2,00.785.0753/10 | RB2 BA3 | 1771-P6S/B | MS652219PM |
| THS14-A11-30-N | A970GOT-LBA | EC30 50100-00 | Sms1600 PN Sg001043 | 371-03785-001 RS232-LAN |
Send the exact order code, quantity and destination for availability and compatibility review.