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Schneider Electric HMISTO531

Schneider HMISTO531 Harmony STO HMI, 3.4" monochrome, 200x80, IP65

MPNHMISTO531
Obsolete

Schneider Electric Harmony STO HMISTO531 HMI operator interface, 3.4" monochrome STN LCD, 200 x 80 pixels, green/orange/red backlight, analogue touch panel, 24 VDC, 5 W, IP65 front panel, NEMA 4X, Modbus TCP/IP, 16 MB application memory.

$974.60Ref. price · indicative, final on quote
Schneider Electric HMISTO531 datasheet (PDF)
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

HMISTO531 key specifications
ParameterValue
Display typeBacklit monochrome STN LCD
Range of productHarmony STO & STU
Product or component typeTouch panel screen
Integrated connection type1 USB 2.0 type mini B 1 USB 2.0 type A power supply - removable screw terminal block 1 Ethernet TCP/IP - 1 RJ45
Supply voltage24 V DC +/- 20 %
Inrush current30 A
Power consumption in5 W
Processor frequency333 MHz
Enclosure materialPPT
IP degree of protectionIP20 IEC 60529 rear panel) IP65 IEC 60529 front panel)
NEMA degree of protectionNEMA 4X front panel indoor use)
Downloadable protocolsXWAY TCP/IP Modbus TCP/IP Third party protocols

All specifications

HMISTO531 additional specifications
ParameterValue
Shock resistance15 gn 11 msIEC 60068-2-27
Relative humidity0...90 % without condensation
Operating altitude<= 6561.68 ft (2000 m)
Vibration resistance+/- 3.5 mm 5...9 Hz) IEC 60068-2-6 1 gn 9...150 Hz) IEC 60068-2-6
Background colourGreen, orange and red
StandardsFCC Class A UL 1604 UL 508 IEC 61000-6-2 EN 61131-2
SupplyExternal source
MarkingCE
CategoryUS10MC222569
Contrast16 levels via touch panel
Brightness8 levels
Fixing modeBy 2 spring clips 1.6...5 mm thick panel
Touch panelAnalogue
Size3.4 inch
Port ethernet10/100BASE-TX
Character fontChinese (simplified Chinese) Korean Taiwanese (traditional Chinese) Japanese (ANK, Kanji) ASCII
Processor nameCPU RISC
Realtime clockAccess to the PLC real-time clock
Number of pagesLimited by internal memory capacity
Local signalling1 LED (green) for normal operation
Backlight lifespan10000 hours red 50000 hours orange 50000 hours green
Display resolution200 x 80 pixels
Memory descriptionApplication memory 16 MB Back up of data 128 kB
Immunity to microbreaks3 ms
Electromagnetic compatibilityResistance 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 operation32...122 °F (0...50 °C)

Product details

Overview

The HMISTO531 is a Schneider Harmony STO compact HMI with a 3.4-inch monochrome STN LCD display at 200 x 80 pixel resolution, backlit in green, orange, and red. It runs on a 24 VDC supply drawing 5 W and includes an analogue touch panel with 16 contrast levels. Application memory is 16 MB with 128 kB backup for data retention. Communication is via a 10/100BASE-TX Ethernet port supporting Modbus TCP/IP, XWAY, and third-party protocols.

Compared to the HMISTO511, the HMISTO531 shares the same 3.4-inch monochrome display and 200 x 80 resolution but offers a larger application memory (16 MB vs. 8 MB) and a higher shock rating (15 gn vs. 10 gn).

MPN
HMISTO531