{"product_id":"6es5526-3la21-siemens-simatic-s5-cp-526-expansion-board","title":"Siemens 6ES5526-3LA21 Simatic S5 CP 526 Communications Processor","description":"\u003cp\u003eThe Siemens 6ES5526-3LA21 is a specialized communications processor module designed for the Simatic S5 PLC product family. This expansion board facilitates advanced data handling, peripheral connectivity, and HMI support within legacy control systems. By offloading communication tasks from the main CPU, the CP 526 ensures that the primary controller maintains optimal scan cycle performance even when managing demanding visualization or external data exchange requirements.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDedicated onboard processor to manage communication protocols independently of the PLC CPU.\u003c\/li\u003e\n\u003cli\u003eDesigned for integration into Simatic S5 backplane architectures.\u003c\/li\u003e\n\u003cli\u003eSupports serial connectivity for operator panels, printers, and peripheral devices.\u003c\/li\u003e\n\u003cli\u003eOptimized for stable, long-term operation in industrial environments such as power generation and heavy manufacturing.\u003c\/li\u003e\n\u003cli\u003eAutonomous firmware handling for data blocks and text string management.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is frequently deployed in mature automation systems requiring reliable interface expansion. Typical applications include the management of operator display screens, data logging, and point-to-point serial communications in legacy S5-based control setups.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e6ES5526-3LA21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSimatic S5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eCommunications Processor (CP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC (via backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e1.2 A typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the PLC rack is powered down before inserting or removing the CP 526 module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eVerify proper seating in the designated S5 backplane slot to ensure reliable bus contact.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate ventilation within the cabinet to stay within the 0 to 55 deg C operating range.\u003c\/li\u003e\n\u003cli\u003eFollow standard ESD precautions when handling the module to protect sensitive internal circuitry.\u003c\/li\u003e\n\u003cli\u003eEnsure all serial cables are properly shielded and routed away from high-voltage power lines to minimize EMI interference.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eIs this module compatible with all S5 systems?\u003c\/h3\u003e\u003cp\u003eThe 6ES5526-3LA21 is designed for specific Simatic S5 backplane configurations. Please verify your existing rack and CPU compatibility via your system documentation before installation.\u003c\/p\u003e\u003ch3\u003eDoes this module require external power?\u003c\/h3\u003e\u003cp\u003eNo, the unit receives its 5 VDC power supply directly from the S5 backplane bus during standard operation.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44003323117658,"sku":"6ES5526-3LA21","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_14f8b924-f089-4218-bad2-12db934b2de9.jpg?v=1788367851","url":"https:\/\/www.spareoil.com\/products\/6es5526-3la21-siemens-simatic-s5-cp-526-expansion-board","provider":"SpareOil Automation","version":"1.0","type":"link"}