| Part Number | 6AV2123-2DB03-0AX0 | 
| Product type designation | KTP400 Basic | 
| Display |  | 
| Design of display | TFT widescreen display, LED backlighting | 
| Screen diagonal | 4.3 in | 
| Display width | 95 mm | 
| Display height | 53.9 mm | 
| Number of colors | 65 536 | 
| Resolution (pixels) |  | 
| ● Horizontal image resolution | 480 pixel | 
| ● Vertical image resolution | 272 pixel | 
| Backlighting |  | 
| ● MTBF backlighting (at 25 °C) | 20 000 h | 
| ● Backlight dimmable | Yes | 
| Control elements |  | 
| Keyboard fonts |  | 
| ● Function keys |  | 
| — Number of function keys | 4 | 
| — Number of function keys with LEDs | 0 | 
| ● Keys with LED | No | 
| ● System keys | No | 
| ● Numeric keyboard | Yes; Onscreen keyboard | 
| ● alphanumeric keyboard | Yes; Onscreen keyboard | 
| Touch operation |  | 
| ● Design as touch screen | Yes; Analog-resistive | 
| Installation type/mounting |  | 
| Mounting position | vertical | 
| Wall mounting/direct mounting | No | 
| Mounting in portrait format possible | Yes | 
| Mounting in landscape format possible | Yes | 
| maximum permissible angle of inclination without external ventilation | 35° | 
| Supply voltage |  | 
| Type of supply voltage | DC | 
| Rated value (DC) | 24 V | 
| permissible range, lower limit (DC) | 19.2 V | 
| permissible range, upper limit (DC) | 28.8 V | 
| Input current |  | 
| Current consumption (rated value) | 125 mA | 
|  |  | 
| Starting current inrush I²t | 0.2 A²·s | 
| Power |  | 
| Active power input, typ. | 3 W | 
| Processor |  | 
| Processor type | ARM | 
| Memory |  | 
| Flash | Yes | 
| RAM | Yes | 
| Memory available for user data | 10 Mbyte | 
| Type of output |  | 
| Acoustics |  | 
| ● Buzzer | Yes | 
| ● Speaker | No | 
| Time of day |  | 
| Clock |  | 
| ● Hardware clock (real-time) | Yes | 
| ● Software clock | Yes | 
| ● retentive | Yes; Back-up duration typically 6 weeks | 
| ● synchronizable | Yes | 
| Interfaces |  | 
| Number of industrial Ethernet interfaces | 1 | 
| Number of RS 485 interfaces | 0 | 
| Number of RS 422 interfaces | 0 | 
| Number of RS 232 interfaces | 0 | 
| Number of USB interfaces | 1; Up to 16 GB | 
| Number of 20 mA interfaces (TTY) | 0 | 
| Number of parallel interfaces | 0 | 
| Number of other interfaces | 0 | 
| Number of SD card slots | 0 | 
| With software interfaces | No | 
| Industrial Ethernet |  | 
| ● Industrial Ethernet status LED | 2 | 
| Protocols |  | 
| PROFINET | Yes | 
| Supports protocol for PROFINET IO | No | 
| IRT | No | 
| PROFIBUS | No | 
| EtherNet/IP | Yes | 
| MPI | No | 
| Protocols (Ethernet) |  | 
| ● TCP/IP | Yes | 
| ● DHCP | Yes | 
| ● SNMP | Yes | 
| ● DCP | Yes | 
| ● LLDP | Yes | 
| WEB characteristics |  | 
| ● HTTP | No | 
| ● HTML | No | 
| Redundancy mode |  | 
| Media redundancy |  | 
| — MRP | No | 
| Further protocols |  | 
| ● CAN | No | 
| ● MODBUS | Yes; Modicon (MODBUS TCP/IP) | 
| Interrupts/diagnostics/status information |  | 
| Diagnoses |  | 
| ● Diagnostic information readable | No | 
| EMC |  | 
| Emission of radio interference acc. to EN 55 011 |  | 
|  |  | 
| ● Limit class A, for use in industrial areas | Yes | 
| ● Limit class B, for use in residential areas | No | 
| Degree and class of protection |  | 
| IP (at the front) | IP65 | 
| IP (rear) | IP20 | 
| NEMA (front) |  | 
| ● Enclosure Type 4 at the front | Yes | 
| ● Enclosure Type 4x at the front | Yes | 
| Standards, approvals, certificates |  | 
| CE mark | Yes | 
| cULus | Yes | 
| RCM (formerly C-TICK) | Yes | 
| KC approval | Yes | 
| Use in hazardous areas |  | 
| ● ATEX Zone 2 | No | 
| ● ATEX Zone 22 | No | 
| ● IECEx Zone 2 | No | 
| ● IECEx Zone 22 | No | 
| ● cULus Class I Zone 1 | No | 
| ● cULus Class I Zone 2, Division 2 | No | 
| ● FM Class I Division 2 | No | 
| Marine approval |  | 
| ● Germanischer Lloyd (GL) | Yes | 
| ● American Bureau of Shipping (ABS) | Yes | 
| ● Bureau Veritas (BV) | Yes | 
| ● Det Norske Veritas (DNV) | Yes | 
| ● Lloyds Register of Shipping (LRS) | Yes | 
| ● Nippon Kaiji Kyokai (Class NK) | Yes | 
| ● Polski Rejestr Statkow (PRS) | No | 
| ● Chinese Classification Society (CCS) | No | 
| Ambient conditions |  | 
| Suited for indoor use | Yes | 
| Suited for outdoor use | No | 
| Ambient temperature during operation |  | 
| Operation (vertical installation) |  | 
| — For vertical installation, min. | 0 °C | 
| — For vertical installation, max. | 50 °C | 
| Operation (max. tilt angle) |  | 
| — At maximum tilt angle, min. | 0 °C | 
| — At maximum tilt angle, max. | 40 °C | 
| Operation (vertical installation, portrait format) |  | 
| — For vertical installation, min. | 0 °C | 
| — For vertical installation, max. | 40 °C | 
| Operation (max. tilt angle, portrait format) |  | 
| — At maximum tilt angle, min. | 0 °C | 
| — At maximum tilt angle, max. | 35 °C | 
| Ambient temperature during storage/transportation |  | 
| ● min. | -20 °C | 
| ● max. | 60 °C | 
| Relative humidity |  | 
| ● Operation, max. | 90 %; no condensation | 
| Operating systems |  | 
| proprietary | Yes | 
| pre-installed operating system |  | 
| ● Windows CE | No | 
| configuration / header |  | 
| Message indicator | Yes | 
| Alarm system (incl. buffer and acknowledgment) | Yes | 
| Process value display (output) | Yes | 
|  |  | 
| Process value default (input) possible | Yes | 
| Recipe management | Yes | 
| Configuration software |  | 
| ●     STEP 7 Basic (TIA Portal) | Yes; via integrated WinCC Basic (TIA Portal) | 
| ●     STEP 7 Professional (TIA Portal) | Yes; via integrated WinCC Basic (TIA Portal) | 
| ●     WinCC flexible Compact | No | 
| ●     WinCC flexible Standard | No | 
| ●     WinCC flexible Advanced● WinCC Basic (TIA Portal) | No | 
| ●     WinCC Comfort (TIA Portal) | Yes | 
| ●     WinCC Advanced (TIA Portal) | Yes | 
| ●     WinCC Professional (TIA Portal) | Yes | 
|  | Yes | 
| Languages |  | 
| Online languages |  | 
| ● Number of online/runtime languages | 10 | 
| Project languages |  | 
| ● Languages per project | 32 | 
| Functionality under WinCC (TIA Portal) |  | 
| Libraries | Yes | 
| Applications/options |  | 
| ● Web browser | Yes | 
| ● SIMATIC WinCC Sm@rtServer | Yes; Available with WinCC (TIA Portal) V14 or higher | 
| Number of Visual Basic Scripts | No | 
| Task planner | Yes | 
| ● time-controlled | No | 
| ● task-controlled | Yes | 
| Help system | Yes | 
| ● Number of characters per info text | 500 | 
| Message system |  | 
| ●     Number of alarm classes● Bit messages | 32 | 
| — Number of bit messages ● Analog messages |  | 
| — Number of analog messages | 1 000 | 
| ●     S7 alarm number procedure |  | 
| ●     System messages HMI | 25 | 
| ●     System event, more (SIMATIC S7, SINUMERIK, SIMOTION, … ) | No | 
| ●     Number of characters per message | Yes | 
| ●     Number of process values per message | Yes; System message buffer of the SIMATIC S7-1200 and S7-1500 | 
| ●     Acknowledgment groups | 80 | 
| ●     Message indicator● Message buffer | 8 | 
| — Number of entries | Yes | 
| — Circulating buffer | Yes | 
| — retentive |  | 
| — maintenance-free | 256 | 
|  | Yes | 
|  | Yes | 
|  | Yes | 
| Recipe management |  | 
| ● Number of recipes | 50 | 
| ● Data records per recipe | 100 | 
| ● Entries per data record | 100 | 
| ● Size of internal recipe memory | 256 kbyte | 
| ● Recipe memory expandable | No | 
| Variables |  | 
| ●     Number of variables per device | 800 | 
| ●     Number of variables per screen | 100 | 
| ●     Limit values● Multiplexing | Yes | 
| ●     Structures | Yes | 
| ●     Arrays | No | 
|  | Yes | 
|  |  | 
| Images |  | 
| ● Number of configurable images | 250 | 
| ● Permanent window/default | Yes | 
| ● Global image | Yes | 
| ● Pop-up images | No | 
| ● Slide-in images | No | 
| ● Image selection by PLC | Yes | 
| ● Image number in the PLC | Yes | 
| Image objects |  | 
| ● Number of objects per image | 100 | 
| ● Text fields | Yes | 
| ● I/O fields | Yes | 
| ● Graphic I/O fields (graphics list) | Yes | 
| ● Symbolic I/O fields (text list) | Yes | 
| ● Date/time fields | Yes | 
| ● Switches | Yes | 
| ● Buttons | Yes | 
| ● Graphic display | Yes | 
| ● Icons | Yes | 
| ● Geometric objects | Yes | 
| Complex image objects |  | 
| ●       Number of complex objects per screen | 10 | 
| ●       Alarm view● Trend view | Yes | 
| ●       User view | Yes | 
| ●       Status/control | Yes | 
| ●       Sm@rtClient view | No | 
| ●       Recipe view | No | 
| ●       f(x) trend view | Yes | 
| ●       System diagnostics view | No | 
| ●       Media Player | Yes; System message buffer of the SIMATIC S7-1200 and S7-1500 | 
| ●       HTML browser | No | 
| ●       PDF display | Yes | 
| ●       IP camera display | No | 
| ●       Bar graphs | No | 
| ●       Sliders | Yes | 
| ●       Pointer instruments | No | 
| ●       Analog/digital clock | No | 
|  | No | 
| Lists |  | 
| ● Number of text lists per project | 300 | 
| ● Number of entries per text list | 100 | 
| ● Number of graphics lists per project | 100 | 
| ● Number of entries per graphics list | 100 | 
| Archiving |  | 
| ● Number of archives per device | 2; One message and one process value archive | 
| ● Number of entries per archive | 10 000 | 
| ● Message archive | Yes | 
| ● Process value archive | Yes | 
| ● Archiving methods |  | 
| — Sequential archive | Yes | 
| — Short-term archive ● Memory location | Yes | 
| — Memory card |  | 
| — USB memory | No | 
| — Ethernet | Yes | 
| ● Data storage format | No | 
| — CSV |  | 
| — TXT | No | 
| — RDB | Yes | 
|  | No | 
| Security |  | 
| ● Number of user groups | 50 | 
| ● Number of user rights | 32 | 
| ● Number of users | 50 | 
| ● Password export/import | Yes | 
| ● SIMATIC Logon | No | 
| Character sets |  | 
| ● Keyboard fonts |  | 
| — US English | Yes | 
| Transfer (upload/download) |  | 
| ● MPI/PROFIBUS DP | No | 
| ● USB | No | 
| ● Ethernet | Yes | 
| ● using external storage medium | Yes | 
| Process coupling |  | 
| ●     S7-1200 | Yes | 
| ●     S7-1500 | Yes | 
| ●     S7-200 | Yes | 
| ●     S7-300/400● LOGO! | Yes | 
| ●     WinAC | Yes | 
| ●     SINUMERIK | Yes | 
| ●     SIMOTION | Yes; No access to NCK data | 
| ●     Allen Bradley (EtherNet/IP) | Yes | 
| ●     Allen Bradley (DF1) | Yes | 
| ●     Mitsubishi (MC TCP/IP) | No | 
| ●     Mitsubishi (FX) | Yes | 
| ●     OMRON (FINS TCP) | No | 
| ●     OMRON (LINK/Multilink) | No | 
| ●     Modicon (Modbus TCP/IP) | No | 
| ●     Modicon (Modbus) | Yes | 
|  | No | 
| Service tools/configuration aids |  | 
| ● Backup/Restore manually | Yes | 
| ● Backup/Restore automatically | No | 
| ● Simulation | Yes | 
| ● Device switchover | Yes | 
| Peripherals/Options |  | 
| Printer | No | 
| SIMATIC HMI MM memory card: Multi Media Card | No | 
| SIMATIC HMI SD memory card: Secure Digital memory card | No | 
| SIMATIC HMI CF memory card Compact Flash Card | No | 
| USB memory | Yes | 
| SIMATIC IPC USB Flashdrive (USB stick) | Yes | 
| SIMATIC HMI USB stick | Yes | 
| Mechanics/material |  | 
| Enclosure material (front) |  | 
| ● Plastic | Yes | 
| ● Aluminum | No | 
| ● Stainless steel | No | 
| Dimensions |  | 
| Width of the housing front | 141 mm | 
| Height of housing front | 116 mm | 
| Mounting cutout, width | 123 mm | 
| Mounting cutout, height | 99 mm | 
| Overall depth | 33 mm | 
| Weights |  | 
| Weight (without packaging) | 360 g | 
| Weight (with packaging) | 470 g |