{"product_id":"beckhoff-c9900-e871-cp6xxx-cp7xxx-push-button-extension","title":"Beckhoff C9900-E871 CP6xxx CP7xxx Push-button Extension","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for direct integration onto the right side of Beckhoff CP6x32-00xx and CP7x32-00xx Control Panels, the \u003cstrong\u003eBeckhoff C9900-E871\u003c\/strong\u003e provides an auxiliary physical interface expansion for 15-inch HMI displays operating without an integrated keyboard. This rugged operator panel extension interfaces critical mechanical controls directly to the host control system, bridging physical actuation with digital bus communication. By incorporating industrial-grade switches and a dedicated emergency stop, it enhances spatial efficiency and operating convenience directly at the machine face.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e18 Illuminated Push-Buttons:\u003c\/strong\u003e Equipped with high-durability Siemens Signum square keys (30 x 30 mm) containing integrated signal lamps.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Emergency Stop:\u003c\/strong\u003e Features one heavy-duty Siemens Signum emergency stop button designed for direct safety circuit integration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Signal Routing:\u003c\/strong\u003e Transmits all push-button inputs via CP-Link or USB connection as a primary normally-open (NO) contact, with an independent secondary NO contact mapped directly to a terminal block.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBus-Driven Indicator Lamps:\u003c\/strong\u003e Coordinates all signal lamp illumination strictly through CP-Link or USB communication protocols.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable Legend Strips:\u003c\/strong\u003e Supports insertable label caps for rapid, application-specific functional engraving or text marking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eAutomotive manufacturing assembly and machining cell control stations.\u003c\/li\u003e\n  \u003cli\u003eCNC machine tools and heavy industrial material handling systems.\u003c\/li\u003e\n  \u003cli\u003eProcess control setups utilizing 15-inch fanless industrial PCs and HMI panels.\u003c\/li\u003e\n  \u003cli\u003eSafety-critical physical override environments demanding hardwired E-stop circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications Table\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eSpecification Parameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eValue \/ Detail\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eC9900-E871\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eHMI Panel Compatibility\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCP6x32-00xx and CP7x32-00xx Series (15-inch without keyboard)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMounting Location\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eRight side of the HMI unit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePush-Button Element Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e18 x Siemens Signum Square (30 x 30 mm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEmergency Stop Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1 x Siemens Signum twist-to-release (direct-wireable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCommunication Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eUSB or CP-Link (model dependent)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eContact Configuration (Buttons)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1st NO via USB\/CP-Link; 2nd NO via terminal strip\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eIndicator Lamp Control\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOver bus interface (USB or CP-Link) only\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eLifecycle Phase\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eService Phase (Legacy support and spare parts availability)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e5.00 kg (11.02 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eTerminal \/ Port\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eFunctional Assignment \u0026amp; Signal Type\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eUSB \/ CP-Link Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePrimary communication bus interface; handles 1st NO contact inputs and drives active signal lamp outputs.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDirect Terminal Strip\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAccess point for secondary isolated NO dry contacts for all 18 push-buttons; used for localized hardware interlocks.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEmergency Stop Terminals\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eHardwired NC contacts routed independently of the USB\/CP-Link bus to interface directly with safety evaluation relays.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe C9900-E871 is structurally sized to physically align only with 15-inch variants of the CP6x32 and CP7x32 control panels. If you are retrofitting a system with a different display size, this extension block will not mate correctly with the chassis mountings. Verify that the matching driver software or TwinCAT system manager configurations are set to recognize the USB-based keyboard emulation profile utilized by this extension.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eA common site failure involves trying to wire the 24V indicator lamps directly through the terminal strip. Note that the signal lamps are exclusively controlled via the digital USB or CP-Link connection. If your system application loses USB communication, the indicator lamps will remain dark, regardless of local direct terminal status. Ensure your PLC logic accounts for this behavior in high-duty environments.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo maintain compliance with Category 3 or 4 safety standards, never route the emergency stop signal through the USB\/CP-Link bus. The integrated emergency stop button must be wired directly to an approved safety controller or monitoring relay utilizing the physical auxiliary contacts provided on the back of the extension assembly.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0; font-weight: bold;\"\u003eCRITICAL WARNING:\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0.5rem 0 0 0;\"\u003eBefore starting mechanical mounting or electrical integration, completely isolate the 24V DC supply feeding the HMI Panel PC. Confirm the panel is fully de-energized to prevent short-circuits across the USB interface or secondary hardwired contacts during installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eAlign the C9900-E871 extension housing with the structural mounting points on the right-hand bezel of the CP6xxx\/CP7xxx panel.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eSecure the mechanical linkage using the supplied fasteners, taking care to maintain the target IP ingress protection rating at the joint interface.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eRoute and connect the internal USB or CP-Link wiring harness directly into the designated ports inside the main panel computer housing.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eInterface the dedicated emergency stop contacts and hardwired push-button terminals into the local control cabinets, matching system wiring diagrams.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106423202155,"sku":"C9900-E871","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/c9900-e871-entx1phv1z1.png?v=1776243635","url":"https:\/\/www.plcprotech.com\/tr\/products\/beckhoff-c9900-e871-cp6xxx-cp7xxx-push-button-extension","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}