{"product_id":"6es7440-1cs00-0ye0-siemens-communication-module","title":"6ES7440-1CS00-0YE0 Siemens - Communication Module","description":"\u003ch2\u003eSerial Communication Processor for Direct Device Connection\u003c\/h2\u003e\n\u003cp\u003eEnable reliable serial data exchange for your S7-400 PLC. The Siemens 6ES7440-1CS00-0YE0 CP 440 module establishes \u003cstrong\u003ehigh-speed point-to-point links\u003c\/strong\u003e with barcode readers, printers, drives, and other control systems. It comes with a complete configuration package for easy setup.\u003c\/p\u003e\n\u003ch3\u003eDetailed Technical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Siemens\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Line:\u003c\/strong\u003e SIMATIC S7-400\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type:\u003c\/strong\u003e Communications Processor (CP 440)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFull Article Number:\u003c\/strong\u003e 6ES7440-1CS00-0YE0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Channels:\u003c\/strong\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInterface Type:\u003c\/strong\u003e RS422 \/ RS485 (X.27 standard)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupported Protocols:\u003c\/strong\u003e 3964(R) and ASCII\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Baud Rate:\u003c\/strong\u003e 115.2 kbit\/s\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Cable Length:\u003c\/strong\u003e 1200 m (with shielded cable)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLC Memory Required:\u003c\/strong\u003e 1 to 5 KB for parameters\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply:\u003c\/strong\u003e From backplane: 5V DC, max. 360 mA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Power Loss:\u003c\/strong\u003e 1.7 W\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration Software:\u003c\/strong\u003e Siemens STEP 7 (forms included)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e CP 440 module and configuration CD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions (WxHxD):\u003c\/strong\u003e 25 mm x 290 mm x 210 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 600 g\u003c\/p\u003e\n\u003ch3\u003eInstallation \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eInsert the CP 440 module into any free slot of your S7-400 rack. Use \u003cstrong\u003eshielded twisted-pair cables\u003c\/strong\u003e for the serial connection. Configure communication parameters (protocol, baud rate, data format) in STEP 7. This module is ideal for creating a dedicated, reliable link to a single peripheral device or system.\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Shipping Information\u003c\/h3\u003e\n\u003cp\u003eThis product is backed by a solid \u003cstrong style=\"color: #27ae60;\"\u003e12-month warranty\u003c\/strong\u003e. We ensure prompt delivery through our trusted partners: \u003cstrong\u003eFedEx, UPS, and DHL\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the 3964(R) and ASCII protocol?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: 3964(R) is a secure, error-checked protocol for reliable data blocks. ASCII is simpler, sending plain text characters, often used with printers or older devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I connect multiple devices to this single port?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, this is a strict point-to-point module. It is designed for a direct connection to one other device. For multi-drop networks, consider a CP 441 module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the configuration software extra?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, the necessary parameter assignment software is included on the provided CD and integrates into your existing STEP 7 environment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of cable should I use for the full 1200m distance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA\u0026gt; For maximum distance, use a high-quality, shielded twisted-pair cable (like PROFIBUS cable) and ensure proper termination at both ends of the line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this module support MODBUS communication?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Not directly with its built-in drivers. To communicate with a MODBUS device, you would need to use the ASCII protocol and program the MODBUS frame structure in your PLC logic.\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":51494390923546,"sku":"6ES7440-1CS00-0YE0","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/6ES7440-1CS00-0YE0.jpg?v=1789876194","url":"https:\/\/www.ubestplc.com\/products\/6es7440-1cs00-0ye0-siemens-communication-module","provider":"Ubest Automation Limited","version":"1.0","type":"link"}