Loading RB Automation…
Contact Us
Schneider Electric · HMI

STO & STU Series

Harmony STO & STU touch panel HMI with a 3.4 inch backlit monochrome display, Vijeo Designer software, Modbus support and IP65 front panel. Enquire now.

Get Free Quote Call +91 8511104864
  • Authorised Schneider Electric partner
  • Supply across India
STO & STU Series
Introduction

Introduction

THarmony's STO (Security Token Offering) and STU (Security Token Utility) products provide comprehensive solutions for tokenized securities, ensuring compliance, liquidity, and investor protection. With robust features such as smart contract automation and regulatory adherence, Harmony empowers businesses to seamlessly tokenize assets and access a global pool of investors while maintaining security and transparency.

Get a Quote Talk to Engineer
Specifications

Technical Specifications

Model-wise electrical and mechanical ratings for the STO & STU Series range.

Main
Range of product Harmony STO & STU
Product or component type Touch panel screen
Software designation Vijeo Designerr
Operating system Harmony
Processor name CPU RISC
Complementary
Display size 3.4 inch
Display type Backlit monochrome STN LCD
Background colour Green, orange, and red
Display resolution 200 x 80 pixels
Touch panel Analogue
Backlight lifespan 10000 hours with red
50000 hours with orange
50000 hours with green
Brightness 8 levels
Contrast 16 levels via touch panel
Character font Japanese (ANK, Kanji)
Korean
Chinese (simplified Chinese)
ASCII
Taiwanese (traditional Chinese)
[Us] rated supply voltage 24 V DC +/- 20 %
Inrush current 30 A
Local signalling 1 LED (green) for normal operation
Power consumption in W 5 W
Number of pages Limited by internal memory capacity
Processor frequency 333 MHz
Memory description Application memory 16 MB
Back up of data 128 kB
Integrated connection type 1 USB 2.0 type mini B
1 USB 2.0 type A
power supply - removable screw terminal block COM1 serial link - female RJ45 - RS232C/RS485 (rate: <= 115.2 kbits/s)
Supply External source
Realtime clock Access to the PLC real-time clock
Downloadable protocols Uni-TE
Third party protocols
Modbus
Fixing mode By 2 spring clips, mounting on 1.6...5 mm thick panel
Enclosure material PPT
Marking CE
Height 77.5 mm
Width 116.5 mm
Depth 36.5 mm
Environment
Immunity to microbreaks 3 ms
Standards EN 61131-2
IEC 61000-6-2
UL 508
UL 1604
FCC Class A
Product certifications C-Tick
CE
UL Class 1 Division 2 T5
GOST
UL Class 1 Division 2 T4A
cULus
Ambient air temperature for operation 0…50 °C
Ambient air temperature for storage -20…60 °C
Relative humidity 0…90 % without condensation
Operating altitude ≤ 2000 m
IP degree of protection IP20 (rear panel) conforming to IEC 60529
IP65 (front panel) conforming to IEC 60529
NEMA degree of protection NEMA 4X front panel (indoor use)
Shock resistance 15 gn for 11 ms conforming to IEC 60068-2-27
Vibration resistance +/- 3.5 mm (f = 5…9 Hz) conforming to IEC 60068-2-6
1 gn (f = 9…150 Hz) conforming to IEC 60068-2-6
Electromagnetic compatibility Resistance to radiated electromagnetic fields - test level: 10 V/m conforming to IEC 61000-4-3
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 9.0 cm
Package 1 Width 13.0 cm
Package 1 Length 18.5 cm
Package 1 Weight 360.0 g
Offer Sustainability
REACh Regulation REACh Declaration
REACh free of SVHC Yes
EU RoHS Directive Pro-active compliance (Product out of EU RoHS legal scope) EU RoHS Declaration
Mercury free Yes
China RoHS Regulation China RoHS declaration
RoHS exemption information Yes
WEEE The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
California proposition 65 WARNING: This product can expose you to chemicals including: Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Contractual warranty
Warranty 18 months

Datasheets & Manuals

1 document for STO & STU Series. Free PDF, no form to fill in.

  • VI 20 Series HMI Catalogue Catalogue · PDF · 1.6 MB Download

Industrial Applications of STO & STU Series

RB Automation supplies AC servo drives, servo motors and servo reducers into the machines below, built by OEMs and machine builders in Ahmedabad, across Gujarat and throughout India. Each industry links to the full automation product list for that sector.

SPM Machinery

  • Keyway Milling Machine
  • PVC Pipe Cutting Machine
  • Metal Drilling Machine
  • Busbar Bending Machine
  • Gold Refinery Machine
  • Punching Machine

Pharmaceutical Industry

  • Rotary Liquid Filling Machine
  • Linear Liquid Filling Machine
  • Powder Filling Machine
  • Sticker Labeling Machine
  • Bottle Sealing Machine
  • Capping Machine

Aluminium and Steel Industry

  • Laser Marking Machine
  • Laser Cutting Machine
  • Pipe Cutting Machine
  • Drilling Machine
  • Keyway Milling Machine
  • Sheet Cutting Machine

Railway Industry

  • Sleeper Bending Test
  • Cube Testing Machine
  • Auto Tensioning Machine
  • Vibration Control Unit
  • Beam Testing Machine
  • Pullout Testing Machine

Food Industry

  • Cup Cone Filling Machine
  • Candy Making Machine
  • Pouch Packaging Machine
  • Auger Filling Machine

Wood Industry

  • CNC Machine
  • Engraving Machine
  • Automatic Edge Bander Machine
  • Auto Panel Saw Machine

Building a machine that is not listed? Send the load, speed and duty and our engineers will recommend a match
call +91 8511104864 or email contact@rbautomate.com.

Talk to an engineer

Inquiry Now

Send the model, quantity and what the machine has to do. Our engineers confirm the right STO & STU Series variant and quote it.

  • Authorised Schneider Electric partner
  • Supply across Gujarat and all India
+91 8511104864 contact@rbautomate.com
FAQs

Harmony STO & STU Series HMI FAQs

Straight answers to what buyers ask us most about STO & STU Series.

Harmony STO & STU is a compact Schneider Electric touch panel with a 3.4 inch backlit monochrome STN LCD, programmed with Vijeo Designer software. It is a small operator screen for machines that need basic display and data entry in limited panel space. The panel runs on a 333 MHz RISC processor with 16 MB application memory and 128 kB for data backup.

The display is a 3.4 inch backlit monochrome STN LCD with a resolution of 200 x 80 pixels and an analogue touch panel. The backlight can show green, orange or red, rated for 50000 hours on green and orange and 10000 hours on red. Brightness has 8 levels, and contrast has 16 levels adjustable from the touch panel.

The panel has one USB 2.0 mini B port, one USB 2.0 type A port and a COM1 serial link on a female RJ45 connector supporting RS232C or RS485. Downloadable protocols include Modbus, Uni-TE and third-party protocols, and the panel can access the PLC real-time clock. It runs on 24 V DC plus or minus 20 percent with 5 W power consumption.

Yes, RB Automation can confirm the fit before you order. The unit measures 116.5 mm wide, 77.5 mm high and 36.5 mm deep, mounts with 2 spring clips in a panel 1.6 to 5 mm thick, and has an IP65 and NEMA 4X (indoor) front with an IP20 rear. The team can also check the Modbus or Uni-TE link to your PLC.

RB Automation in Ahmedabad supplies the Harmony STO & STU HMI to machine builders and maintenance teams across Gujarat and India. RB Automation is an authorised Schneider Electric partner and can also supply compatible Schneider PLCs for the Modbus link. Call +91 8511104864 or email contact@rbautomate.com with the part number and quantity you need.

Send your required quantity, the part number if known, and your delivery location to RB Automation through the inquiry form on this page or on WhatsApp at +91 9898739737. Pricing depends on the exact variant and the order volume, so the team replies with a written quotation. OEMs fitting the STO & STU on every machine can ask for repeat-order pricing.

Submit Inquiry for

×