{"product_id":"beckhoff-c9900-e855-control-panel-series-push-button-extension","title":"Beckhoff C9900-E855 Control Panel Series Push-Button Extension","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIntegrating physical control elements directly alongside industrial displays, the \u003cstrong\u003eBeckhoff C9900-E855\u003c\/strong\u003e push-button extension expands operator interface capabilities on CP6xxx and CP7xxx Control Panels and Panel PCs. Designed specifically for 15-inch display models without integrated keyboards, this robust hardware add-on mounts on the right-hand side of the display housing, streamlining manual operations and emergency stop interventions. The assembly is currently in its service phase, making it a critical spare part for maintaining legacy HMI systems.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eErgonomic Layout:\u003c\/strong\u003e Designed for right-side mounting on 15-inch displays, providing natural auxiliary control accessibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTactile Key Elements:\u003c\/strong\u003e Equipped with 16 square Siemens Signum push-buttons (30 x 30 mm) featuring integrated signal lamps for visual feedback.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety Integration:\u003c\/strong\u003e Features one high-visibility Siemens Signum emergency stop switch, directly wireable to dedicated safety relays.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Connection Path:\u003c\/strong\u003e All primary push-button operations transmit digitally via CP-Link or USB using a normally-open (NO) contact, while secondary NO contacts are routed to an independent terminal row for hardware bypass.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable Legend:\u003c\/strong\u003e Slotted design allows for quick installation of slide-in labels beneath push-button caps for individual key identification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eAutomotive assembly lines and machining cells using Beckhoff CP6x12 or CP7x12 HMIs.\u003c\/li\u003e\n  \u003cli\u003eProcess control workstations requiring a combination of touchscreen inputs and physical override switches.\u003c\/li\u003e\n  \u003cli\u003eLegacy machine retrofits where direct physical E-stop integration is mandatory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\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    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; width: 35%;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel \/ Article Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eC9900-E855\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePush-button Extension Module (Right Side)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eHMI Compatibility\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCP6x12-00xx and CP7x12-00xx (15-inch display without keyboard)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePush-button Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e16 x Siemens Signum square keys (30 x 30 mm) with signal lamps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eEmergency Stop\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1 x Siemens Signum E-stop switch (directly wireable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInterface Options\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCP-Link or USB (for primary NO contacts and signal lamps)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSecondary Wiring\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eTerminal strip for direct hardwiring of secondary NO contacts\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCurrent Lifecycle Status\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eService Phase\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e5.0 kg\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 #2d3748; text-align: left;\"\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eConnection Path\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eFunction \/ Circuit Assignment\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: 0.75rem; font-weight: bold;\"\u003eCP-Link \/ USB Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eTransmits visual lamp outputs and primary NO push-button state changes to the host controller.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eDirect Terminal Row\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eAllows direct point-to-point hardwiring of the secondary NO contacts for safety relays or external PLC input cards.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eEmergency Stop Terminal\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eDirect dry-contact terminal blocks for emergency loop integration. Does not route safety critical stops over USB.\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;\"\u003eThis unit is specifically dimensioned for legacy 15-inch housings without keyboards (CP6x12 and CP7x12). When upgrading or replacing older control hardware, verify the exact suffix code of your Control Panel; attempting to pair this module with 12-inch or 19-inch variants will cause physical layout mismatch and mounting failure.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eNote that the integrated signal lamps cannot be actuated via the secondary hardwired terminal strip. They operate exclusively via commands sent through the CP-Link or USB protocol. If the communication interface is interrupted, status feedback via the signal lamps will be lost, even if the primary dry contacts remain connected via hardwiring.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1.5rem;\"\u003eAlways run the emergency stop circuit through the direct terminal row directly to an approved safety evaluation unit (such as Beckhoff TwinSAFE or an external Category 4 safety relay). Do not rely on CP-Link or USB communication paths for functional safety emergency stop commands.\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; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Prior to mounting or wiring the push-button extension, ensure all power sources to the host Control Panel \/ Panel PC and auxiliary control loops are completely de-energized. Failure to isolate power may result in communication circuit damage or unexpected machine actuation.\n\u003c\/div\u003e\n\n\u003col style=\"list-style: none; padding-left: 0; color: #2d3748;\"\u003e\n  \u003cli style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.5rem; height: 1.5rem; display: flex; align-items: center; justify-content: center; font-size: 0.875rem; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/span\u003e\n    \u003cspan\u003eAlign the physical mounting brackets of the extension module with the right-hand chassis mounting points of the CP6xxx\/CP7xxx housing.\u003c\/span\u003e\n  \u003c\/li\u003e\n  \u003cli style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.5rem; height: 1.5rem; display: flex; align-items: center; justify-content: center; font-size: 0.875rem; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/span\u003e\n    \u003cspan\u003eSecurely fasten the mounting screws to the specified torque limit to guarantee seal integrity and prevent vibration damage.\u003c\/span\u003e\n  \u003c\/li\u003e\n  \u003cli style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.5rem; height: 1.5rem; display: flex; align-items: center; justify-content: center; font-size: 0.875rem; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/span\u003e\n    \u003cspan\u003eConnect the USB\/CP-Link communications cable to the designated rear interface port on the Control Panel.\u003c\/span\u003e\n  \u003c\/li\u003e\n  \u003cli style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.5rem; height: 1.5rem; display: flex; align-items: center; justify-content: center; font-size: 0.875rem; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/span\u003e\n    \u003cspan\u003eRoute the safety circuit wiring directly from the emergency stop switch terminals to your safety controller, testing continuity before powering up the system.\u003c\/span\u003e\n  \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106447974763,"sku":"C9900-E855","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/c9900-e855-3naui1adtvc.png?v=1776243630","url":"https:\/\/www.plcprotech.com\/tr\/products\/beckhoff-c9900-e855-control-panel-series-push-button-extension","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}