| Main | 
| Part Number | HMISTU655 | HMISTU855 | 
| Range of product | Harmony STO & STU | Harmony STO & STU | 
| Product or component type | Touch panel screen | Touch panel screen | 
| Software designation | Vijeo Designer | Vijeo Designer | 
| Operating system | Harmony | Harmony | 
| Processor name | CPU ARM9 | CPU ARM9 | 
| Complementary | 
| Display size | 3.5 inch | 5.7 inch | 
| Display type | QVGA TFT colour touchscreen | QVGA TFT colour touchscreen | 
| Display colour | 65536 colours | 65536 colours | 
| Display resolution | 320 x 240 pixels QVGA | 320 x 240 pixels QVGA | 
| Touch panel | Analogue | Analogue | 
| backlight lifespan | 50000 hours | 50000 hours | 
| Brightness | 16 levels | 16 levels | 
| Character font | Chinese (simplified Chinese) | Taiwanese (traditional Chinese) | 
| Japanese (ANK, Kanji) | Japanese (ANK, Kanji) | 
| ASCII | Chinese (simplified Chinese) | 
| Korean | ASCII | 
| Taiwanese (traditional Chinese) | Korean | 
| [Us] rated supply voltage | 24 V DC | 24 V DC | 
| Supply | External source | External source | 
| Supply voltage limits | 20.4…28.8 V | 20.4…28.8 V | 
| Inrush current | 30 A | 30 A | 
| Power consumption in W | 6.5 W | 6.8 W | 
| Number of pages | Limited by internal memory capacity | Limited by internal memory capacity | 
| Processor frequency | 333 MHz | 333 MHz | 
| memory description | Application memory 16 MB | Application memory 16 MB | 
| Back up of data 64 kB | Back up of data 64 kB | 
| integrated connection type | 1 USB 2.0 type mini B | 1 USB 2.0 type mini B | 
| 1 USB 2.0 type A | 1 USB 2.0 type A | 
| COM1 serial link – female RJ45 – RS232C/RS485 (rate: <= 115.2 kbits/s) | COM1 serial link – female RJ45 – RS232C/RS485 (rate: <= 115.2 kbits/s) | 
| power supply – removable screw terminal block | power supply – removable screw terminal block | 
| 1 Ethernet – RJ45 | 1 Ethernet – RJ45 | 
| Realtime clock | Access to the PLC real-time clock | Access to the PLC real-time clock | 
| Downloadable protocols | Modbus TCP/IP | Uni-TE | 
| Modbus | Modbus TCP/IP | 
| Uni-TE | Third party protocols | 
| Third party protocols | Modbus | 
| fixing mode | Ø 22 mm hole | Ø 22 mm hole | 
| Enclosure material | PC/PBT | PC/PBT and PAA | 
| Marking | With Schneider logo | With Schneider logo | 
| CE | CE | 
| Height | 98.15 mm | 129.15 mm | 
| Width | 118 mm | 163 mm | 
| Depth | 55.3 mm | 56.5 mm | 
| Environment | 
| Immunity to microbreaks | 10 ms | 7 ms | 
| Standards | IEC 61000-6-2 | UL 1604 | 
| EN 61131-2 | FCC Class A | 
| UL 1604 | IEC 61000-6-2 | 
| UL 508 | EN 61131-2 | 
| FCC Class A | UL 508 | 
| Product certifications | CULus | UL class 1 Div2 T4A ou T5 | 
| C-Tick | C-Tick | 
| Marine | cULus | 
| UL class 1 Div2 T4A ou T5 | Marine | 
| UKCA | UKCA | 
| Ambient air temperature for operation | 0…50 °C | 0…50 °C | 
| Ambient air temperature for storage | -20…60 °C | -20…60 °C | 
| relative humidity | 0…85 % without condensation | 0…85 % without condensation | 
| Operating altitude | <= 2000 m | <= 2000 m | 
| IP degree of protection | IP20 (rear panel) conforming to IEC 60529 | IP20 (rear panel) conforming to IEC 60529 | 
| IP65 (front panel) conforming to IEC 60529 | IP65 (front panel) conforming to IEC 60529 | 
| NEMA degree of protection | NEMA 4X front panel (indoor use) | NEMA 4X front panel (indoor use) | 
| shock resistance | 15 gn for 11 ms conforming to IEC 60068-2-27 | 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 | +/- 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 | 1 gn (f = 9…150 Hz) conforming to IEC 60068-2-6 | 
| resistance to electromagnetic fields | 10 V/m conforming to IEC 61000-4-3 | 10 V/m conforming to IEC 61000-4-3 | 
| Packing Units | 
| Unit Type of Package 1 | PCE | PCE | 
| Number of Units in Package 1 | 1 | 1 | 
| Package 1 Height | 6.876 cm | 6.961 cm | 
| Package 1 Width | 13.194 cm | 18.532 cm | 
| Package 1 Length | 18.504 cm | 26.974 cm | 
| Package 1 Weight | 529 g | 865 g | 
| Unit Type of Package 2 | S03 | S03 | 
| Number of Units in Package 2 | 16 | 8 | 
| Package 2 Height | 30 cm | 30 cm | 
| Package 2 Width | 30 cm | 30 cm | 
| Package 2 Length | 40 cm | 40 cm | 
| Package 2 Weight | 8960 g | 7436 g | 
| Unit Type of Package 3 | P12 | P12 | 
| Number of Units in Package 3 | 384 | 192 | 
| Package 3 Height | 95 cm | 95 cm | 
| Package 3 Width | 80 cm | 80 cm | 
| Package 3 Length | 120 cm | 120 cm | 
| Package 3 Weight | 224040 g | 187464 g | 
| Contractual warranty | 
| Warranty | 18 months | 18 months |