{"product_id":"omron-h7cx-a4s-n-h7cx-series-multifunction-counter-tachometer","title":"Omron H7CX-A4S-N H7CX Series Multifunction Counter\/Tachometer","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eOptimized for dynamic process monitoring, the \u003cstrong\u003eOmron H7CX-A4S-N\u003c\/strong\u003e acts as a highly reliable industrial counting and rate-measurement module within a standard DIN-sized footprint. This 4-digit, single-stage configuration device serves dual functions as a digital counter and high-speed tachometer, making it ideal for tracking cycles, batch quantities, and rotational velocities. Equipped with \u003cstrong\u003escrew terminals\u003c\/strong\u003e and a fast-acting \u003cstrong\u003etransistor output\u003c\/strong\u003e, the unit integrates smoothly into low-latency control loops driven by PLCs or supervisory relays. The integrated power supply accepts universal AC voltage, mitigating the need for external step-down transformers in standard control panels.\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\u003eDual-function layout operational as either an advanced digital counter or precise tachometer.\u003c\/li\u003e\n  \u003cli\u003eHigh-visibility 4-digit display featuring dynamic, custom-configurable color-changing status backlighting.\u003c\/li\u003e\n  \u003cli\u003eSingle-stage preset control providing rapid trigger capability upon reaching target setpoints.\u003c\/li\u003e\n  \u003cli\u003eSolid-state transistor output designed for high-frequency switching operations and spark-free output logic.\u003c\/li\u003e\n  \u003cli\u003eUniversal wide-range AC power input supporting global electrical standards.\u003c\/li\u003e\n  \u003cli\u003eRobust rear-facing screw terminals ensuring secure physical connections under structural vibration.\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\u003eHigh-speed industrial packaging line batch counting and piece tracking.\u003c\/li\u003e\n  \u003cli\u003eRotational velocity (RPM) measurement and slip detection on heavy conveyor systems.\u003c\/li\u003e\n  \u003cli\u003ePrecision length-cutting operations using quadrature encoder input setups.\u003c\/li\u003e\n  \u003cli\u003eStamping and cycle-limit monitoring for automated metal fabrication machinery.\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: 0.5rem; font-weight: bold; color: #1a365d;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 0.5rem; font-weight: bold; color: #1a365d;\"\u003eValue\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: 0.5rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eOmron\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eModel Reference\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eH7CX-A4S-N\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eDevice Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eMultifunction Counter \/ Tachometer\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eDisplay Digits\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e4 digits (-999 to 9999)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eSupply Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e100 to 240 VAC at 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003ePreset Stages\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e1-stage preset\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eOutput Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eTransistor output (NPN\/PNP selectable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eConnection Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eRear screw terminal block\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eFront Panel Dimensions\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e48 mm x 48 mm (1\/16 DIN)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eInsertion Depth\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e84 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eExternal Sensor Power\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e12 VDC (up to 100 mA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.35 kg;\"\u003e0.35 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 #1a365d;\"\u003e\n        \u003cth style=\"text-align: left; padding: 0.5rem; font-weight: bold; color: #1a365d;\"\u003eTerminal\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 0.5rem; font-weight: bold; color: #1a365d;\"\u003eFunction Description\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: 0.5rem; font-weight: bold;\"\u003e1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eAC Power Supply Input (Line)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eAC Power Supply Input (Neutral)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e3\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eSensor Power Supply Output (+12 VDC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e4\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eSignal Input A (Count \/ Tachometer Pulse Input)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e5\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eSignal Input B (Directional Count Control)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e6\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eReset Input Signal (External Counter Clear)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e7\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eKey Protect Input (Locks Front Panel Parameters)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e8\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eOutput Common Ground (0V Reference)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e9\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eTransistor Output (Collector)\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 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe updated \"N\" suffix denotes a modernized internal processor design complying with recent RoHS directive updates and enhanced display contrast. The \u003cstrong\u003eH7CX-A4S-N\u003c\/strong\u003e serves as a direct drop-in replacement for the legacy H7CX-A4S model. When replacing older non-N versions, verify parameter compatibility, as default gate time and input speed profiles may require brief adjustment in the configuration utility menu.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen using this module in tachometer mode, avoid routing high-voltage motor lead lines in parallel with the sensor inputs. If physical relay or microswitch contacts are used for inputs instead of proximity sensors, set the maximum input speed setting to 30 Hz via the internal menu. Setting this parameter to 5 kHz or 10 kHz with physical contacts will result in count tracking errors caused by mechanical switch bounce.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways utilize shielded twisted-pair cabling for the sensor inputs (Input A and Input B). To prevent ground loops from injecting electrical noise into the counter's internal processor, ground the cable shield strictly at the single point panel ground instead of tying it back to Terminal 8 (Common).\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  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate and lock out all upstream electrical power sources supplying the 100-240 VAC feed lines prior to initiating any installation, modification, or wiring operations. Failure to verify zero-energy states on these contacts presents a severe electrical shock hazard and can cause complete structural destruction of the internal control components.\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: 1.75rem; height: 1.75rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eMount the counter into a standard 45 mm x 45 mm DIN panel cutout, securing the device housing from behind using the native mounting adapter bracket.\u003c\/div\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: 1.75rem; height: 1.75rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eRoute input signals separate from power lines and wire input sensors to Terminals 4 and 5 according to either NPN or PNP operational rules.\u003c\/div\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: 1.75rem; height: 1.75rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eConnect the transistor output load to Terminals 8 and 9, keeping current load draw below the standard rating to prevent overheating the output stage.\u003c\/div\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: 1.75rem; height: 1.75rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eTerminate the main 100 to 240 VAC power source wires to Terminals 1 and 2, recheck all structural terminal tightening torques, and energize the system.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077936243051,"sku":"H7CX-A4S-N","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/h7cx-a4s-n-oem5qacz3gp.png?v=1775733832","url":"https:\/\/www.plcprotech.com\/ms\/products\/omron-h7cx-a4s-n-h7cx-series-multifunction-counter-tachometer","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}