{"product_id":"omron-nt31-st122b-ev2-nt-series-programmable-terminal","title":"Omron NT31-ST122B-EV2 NT Series Programmable Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eEngineered for industrial human-machine interface applications, the \u003cstrong\u003eOmron NT31-ST122B-EV2\u003c\/strong\u003e serves as a rugged \u003cstrong\u003eprogrammable terminal\u003c\/strong\u003e featuring a highly legible STN monochrome display. This HMI module supports versatile host communication protocols, facilitating real-time monitoring and control on automated factory floors. By integrating multiple serial interfaces, including dedicated RS-232C and selectable RS-422A\/485 ports, this device bridges the gap between operators and PLC-driven machinery. The compact 5.7-inch design delivers dependable visual feedback and resistive touch matrix input, tailored for space-constrained operator panels.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e5.7-inch STN monochrome LCD display with blue mode visualization.\u003c\/li\u003e\n  \u003cli\u003eMatrix resistive touch panel with 128 touch switches (8 x 16 layout) for reliable tactile response.\u003c\/li\u003e\n  \u003cli\u003eDual serial ports enabling flexible concurrent communication with host PLCs, temperature controllers, and barcode readers.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in printer port conforming to Centronics standards for direct report logging.\u003c\/li\u003e\n  \u003cli\u003e1 MB of internal flash memory to safeguard screen configuration and project data.\u003c\/li\u003e\n  \u003cli\u003eNEMA 4\/IP65 rated front panel construction, providing resilient protection against ingress of oil, dust, and water spray.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMachine tool automation and diagnostic operator workstations.\u003c\/li\u003e\n  \u003cli\u003eConveyor and material handling control consoles.\u003c\/li\u003e\n  \u003cli\u003ePackaging, labeling, and filling equipment interfaces.\u003c\/li\u003e\n  \u003cli\u003eWater treatment, HVAC, and auxiliary system status displays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eOmron\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePart Number\/Model\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eNT31-ST122B-EV2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eNT Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSTN monochrome LCD (blue mode)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDisplay Resolution\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e320 x 240 dots\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEffective Display Area\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e115.2 x 86.4 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBacklight Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCold cathode fluorescent lamp (CCFL)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRated Power Supply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e24 VDC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eAllowable Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e20.4 VDC to 26.4 VDC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e15 W maximum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eScreen Memory Capacity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 MB (Flash memory)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTouch Panel Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eResistive matrix (8 rows x 16 columns)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0 to 50 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-20 to 60 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eAmbient Operating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e35% to 85% RH (non-condensing)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDegree of Protection\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eIP65 equivalent (front panel only)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e195 x 142 x 54 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePanel Cutout Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e184 x 131 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eApprox. 1 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eInterface Port\u003c\/th\u003e\n      \u003cth\u003eConnector Type\u003c\/th\u003e\n      \u003cth\u003eSupported Signal \/ Protocol Standards\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSerial Port A\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eD-Sub 9-pin (female)\u003c\/td\u003e\n      \u003ctd\u003eRS-232C only (Host connection, Barcode reader, Support Tool)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSerial Port B\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eD-Sub 25-pin (female)\u003c\/td\u003e\n      \u003ctd\u003eSelectable RS-232C, RS-422A, or RS-485 (Host connection)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePrinter Port\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eD-Sub 9-pin (female)\u003c\/td\u003e\n      \u003ctd\u003eCentronics-compliant printer interface\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMount the programmable terminal directly onto a flat panel of thickness between 1.6 mm and 4.8 mm.\u003c\/li\u003e\n  \u003cli\u003eEnsure an ambient operating temperature clearance of at least 50 mm around the back of the module to allow for adequate natural ventilation.\u003c\/li\u003e\n  \u003cli\u003eTighten the four included mounting brackets evenly with a maximum torque of 0.5 to 0.6 N-m to maintain IP65-rated front face sealing.\u003c\/li\u003e\n  \u003cli\u003eConnect the Functional Ground (FG) terminal directly to a dedicated ground point of 100 ohms or less using minimum 2 mm sq. wire.\u003c\/li\u003e\n  \u003cli\u003eKeep communication lines and signal cables routed away from high-voltage AC power lines to avoid electromagnetic interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCE Mark\u003c\/li\u003e\n  \u003cli\u003eUL Standards \/ cULus Listing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077932179819,"sku":"NT31-ST122B-EV2","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/nt31-st122b-ev2-24s3k2lpnzx.png?v=1775733943","url":"https:\/\/www.plcprotech.com\/pt\/products\/omron-nt31-st122b-ev2-nt-series-programmable-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}