{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HMISTO501","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"HMISTO501","canonicalUrl":"https://aoctrl.com/schneider/HMISTO501","factsUrl":"https://aoctrl.com/api/mcp/products/HMISTO501","rawCanonicalId":null},"summary":{"shortDescription":"Schneider HMISTO501 Hmi Operator Interfaces — now discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.","salesMarkdown":"## Overview The HMISTO501 is a Schneider Harmony STO operator interface, order code HMISTO501, built around a 3.4 in backlit monochrome STN LCD with 200 x 80 pixel resolution and an analogue touch panel offering 16 contrast levels and 8 brightness levels. It runs on a 24 V DC supply drawing 5.0 W, carries 16 MB of application memory with 128 kB of backup data, and is rated IP20 with a NEMA 4X front panel for indoor use. The HMISTO501 presents a backlit monochrome STN LCD that displays text and simple graphics at 200 x 80 pixels — enough for status screens, alarm lists and numeric entry on a small machine or skid. The analogue touch panel supports 16 contrast levels and 8 brightness levels, letting the operator adjust readability under varying ambient light. Its 16 MB of application memory stores the HMI project pages and logic; the 128 kB backup retains data and retentive variables when power is removed. The 5.0 W power budget keeps heat low inside a sealed enclosure, and the 24 V DC supply matches standard industrial control panels. ## Applications This operator interface is designed for small to mid-size machines — packaging lines, material handling stations, pump skids and HVAC units — where a monochrome display and touch input are sufficient for operator control and status monitoring.","metaTitle":"Schneider HMISTO501 Harmony STO HMI, 3.4 in Monochrome, 24 V DC","metaDescription":"Schneider HMISTO501 Harmony STO operator interface: 3.4 in backlit monochrome STN LCD, 200 x 80 pixels, 16 MB application memory, 24 V DC, IP20, NEMA 4X front panel.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Supply":"External source","Marking":"CE","Category":"US10MC222569","Contrast":"16 levels via touch panel","Standards":"IEC 61000-6-2 FCC Class A UL 508 UL 1604 EN 61131-2","Brightness":"8 levels","Fixing mode":"By 2 spring clips 1.6...5 mm thick panel","Touch panel":"Analogue","Display Type":"Backlit monochrome STN LCD","Display size":"3.4 inch","Character font":"Korean Japanese (ANK, Kanji) Taiwanese (traditional Chinese) Chinese (simplified Chinese) ASCII","Inrush current":"30 A","Processor name":"CPU RISC","Realtime clock":"Access to the PLC real-time clock","Number of pages":"Limited by internal memory capacity","lifecycle_stage":"current","Local signalling":"1 LED (green) for normal operation","Range of Product":"Harmony STO & STU","Shock resistance":"15 gn 11 msIEC 60068-2-27","Background colour":"White, pink and red","Relative humidity":"0...90 % without condensation","Backlight lifespan":"10000 hours red 50000 hours pink 50000 hours white","Display Resolution":"200 x 80 pixels","Enclosure Material":"PPT","Memory description":"Application memory 16 MB Back up of data 128 kB","Operating altitude":"<= 6561.68 ft (2000 m)","Processor frequency":"333 MHz","Vibration resistance":"+/- 3.5 mm 5...9 Hz) IEC 60068-2-6 1 gn 9...150 Hz) IEC 60068-2-6","Nbr. of units in pkg.":"1","Downloadable protocols":"Zelio","Power Consumption in W":"5 W","IP degree of protection":"IP20 IEC 60529 rear panel) IP65 IEC 60529 front panel)","Immunity to microbreaks":"3 ms","NEMA degree of protection":"NEMA 4X front panel (indoor use)","Product or Component Type":"Touch panel screen","[Us] rated supply voltage":"24 V DC +/- 20 %","Integrated connection type":"1 USB 2.0 type mini B 1 USB 2.0 type A power supply - removable screw terminal block serial link - 9-pin terminal block - RS232C","Electromagnetic compatibility":"Resistance to radiated electromagnetic fields - test level: 10 V/m conforming to IEC 61000-4-3","Ambient Air Temperature for Storage":"-4...140 °F (-20...60 °C)","Ambient Air Temperature for Operation":"32...122 °F (0...50 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$964.95","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7f033a09ee255966365bc5ba9fabd72b.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/HMISTO501/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/HMISTO501","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/HMISTO501 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}