{"product_id":"siemens-6es7441-1aa03-0ae0-serial-communication-module","title":"Siemens 6ES7441-1AA03-0AE0 | Serial Communication Module","description":"\u003ch2\u003eSiemens 6ES7441-1AA03-0AE0 - Versatile Serial Communication Module for S7-400\u003c\/h2\u003e\n\u003cp\u003eUnlock flexible serial connectivity with the Siemens \u003cb\u003e6ES7441-1AA03-0AE0\u003c\/b\u003e communication processor. This CP 441-1 module is a dedicated serial communication card for the SIMATIC S7-400 PLC, enabling reliable \u003cb\u003epoint-to-point data exchange\u003c\/b\u003e with a wide array of third-party devices. It supports multiple physical interfaces (RS232, RS422\/485, 20mA TTY) and standard protocols, making it the ideal link for printers, barcode scanners, drives, and other serial equipment.\u003c\/p\u003e\n\u003ch3\u003eComplete Technical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eBrand \u0026amp; Series:\u003c\/b\u003e Siemens SIMATIC S7-400\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFull Model Number:\u003c\/b\u003e 6ES7441-1AA03-0AE0 (Communication Processor CP 441-1)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eModule Type:\u003c\/b\u003e Serial Communication Module, 1 Channel\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePhysical Interfaces:\u003c\/b\u003e Selectable via plug-in submodule: RS232C (V.24), RS422\/485 (X.27), 20mA TTY\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMaximum Transmission Rate:\u003c\/b\u003e 38.4 kbit\/s (19.2 kbit\/s for 20mA TTY)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIntegrated Protocols:\u003c\/b\u003e 3964(R), ASCII, Printer Driver (HP DeskJet\/LaserJet, IBM Proprinter, User-defined)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMaximum Cable Length:\u003c\/b\u003e 10m (RS232), 1200m (RS422\/485), 1000m (20mA TTY) - all shielded\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower Supply:\u003c\/b\u003e From S7-400 backplane (5V DC, max 700 mA) + 24V DC for certain submodules\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eS7 Communication:\u003c\/b\u003e Supports S7 extended communication for data exchange between Siemens PLCs\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eConfiguration:\u003c\/b\u003e Via Siemens STEP 7 software (configuration package included on CD)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMemory Requirements on CPU:\u003c\/b\u003e 1-5 KB for parameters, up to 55 KB for message texts\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDimensions (W x H x D):\u003c\/b\u003e 25 mm x 290 mm x 210 mm\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e Approx. 720 g (Module) + 100 g (Interface submodule)\u003c\/p\u003e\n\u003ch3\u003eInstallation \u0026amp; Compatibility Guide\u003c\/h3\u003e\n\u003cp\u003eInstall the main \u003cb\u003e6ES7441-1AA03-0AE0\u003c\/b\u003e module into your S7-400 rack. Then, select and attach the required interface submodule (sold separately) for your desired physical standard (RS232, RS422\/485, or 20mA TTY). Use the included configuration package in STEP 7 to set the protocol, baud rate, data format, and other parameters. It is compatible with devices supporting standard serial protocols like modems, scales, displays, and older control systems.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eWhat's Included:\u003c\/b\u003e 1 x Siemens CP 441-1 Communication Module (6ES7441-1AA03-0AE0) and Configuration Software on CD.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNote:\u003c\/b\u003e The physical interface submodule (RS232, RS422\/485, or 20mA TTY) is typically sold separately. Please verify your order.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOur Guarantee:\u003c\/b\u003e This product is covered by a full \u003cb\u003e12-month warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch3\u003eFast Global Shipping\u003c\/h3\u003e\n\u003cp\u003eWe ensure prompt delivery worldwide via \u003cb\u003eFedEx, UPS, and DHL\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eWhat interface submodule do I need to buy separately?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eYou need one of these: RS232 (6ES7964-1AA04-0AA0), RS422\/485 (6ES7964-1AB04-0AA0), or 20mA TTY (6ES7964-1AC04-0AA0). Choose based on the port type of the device you are connecting to.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCan I connect this module to a barcode scanner?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eYes, absolutely. Using the ASCII protocol driver over an RS232 or RS422 interface is a common and reliable method to read data from serial barcode scanners into an S7-400 PLC.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhat is the 20mA TTY interface used for?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe 20mA current loop (TTY) interface is an older, very robust standard known for excellent noise immunity over very long distances (up to 1000m). It's often found in legacy teleprinters, industrial terminals, and some specialized field equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHow do I print data from my PLC?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUse the integrated printer driver. Connect a compatible printer (like an HP LaserJet) via RS232. The module handles the formatting and transmission, allowing your PLC program to easily send data strings for printing labels or reports.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIs programming knowledge required to set it up?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMinimal programming is needed. Most setup is done through configuration screens in STEP 7 where you select protocols and set parameters. You will need to write simple logic in your PLC to send or receive data blocks via the configured communication driver.\u003c\/p\u003e\n\u003cp\u003e© 2026 Ubest Automation Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e Phone: \u003ca href=\"https:\/\/wa.me\/8618030005825\"\u003e+86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51494392529178,"sku":"6ES7441-1AA03-0AE0","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/6ES7441-1AA03-0AE0.jpg?v=1789876181","url":"https:\/\/www.ubestplc.com\/products\/siemens-6es7441-1aa03-0ae0-serial-communication-module","provider":"Ubest Automation Limited","version":"1.0","type":"link"}