What Is a Programmable Logic Controller and How Does It Work
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The Siemens 6AV2125-2JB03-0AX0 is a SIMATIC KTP900 Mobile HMI operator panel combining a 9-inch TFT touchscreen with 10 illuminated function keys for handheld machine operation. It runs on an ARM processor with 24V DC supply at 450 mA, connects over PROFINET and EtherNet/IP, is rated IP65 all-round, and withstands a 1.2 m free-fall drop for use as a tethered or wireless pendant.
The KTP900 Mobile's 1.2 m drop rating and IP65 all-round enclosure distinguish it from the fixed-mount TP/KP Comfort panels, which are rated only at the front and not built to survive being dropped as a handheld pendant. Its single PROFINET port and single USB port are a reduced interface set compared to the fixed panels' dual-Ethernet, dual-USB configuration, appropriate given it connects through a Connection Box rather than directly into a fixed cabinet network. The combined touch-plus-10-key operation covers both onscreen navigation and tactile function control in one handheld unit, useful where an operator walks the line adjusting the same machine from multiple positions.
Used as a walk-around operator pendant docked into a SIMATIC HMI Connection Box at multiple machine-side stations, in applications where the operator needs to view the process from different physical vantage points, such as large-format packaging or conveyor lines.
| Product type designation | KTP900 Mobile |
|---|
| Design of display | TFT widescreen display, LED backlighting |
|---|---|
| Screen diagonal | 9 in |
| Color display | Yes |
| Number of colors | 16 777 216 |
| Resolution (pixels): Horizontal image resolution | 800 pixel |
| Resolution (pixels): Vertical image resolution | 480 pixel |
| Backlighting: MTBF backlighting (at 25 °C) | 50 000 h |
| Backlighting: Backlight dimmable | Yes; 0-100 % |
| Function keys: Number of function keys | 10 |
|---|---|
| Function keys: Number of function keys with LEDs | 10 |
| Function keys: Keys with LED | Yes |
| Function keys: Numeric keyboard | Yes; Onscreen keyboard |
| Function keys: alphanumeric keyboard | Yes; Onscreen keyboard |
| Touch operation: Design as touch screen | Yes |
| Touch operation: Design as multi-touch screen | No |
| Special operator controls: Stop button (forced blocking) | No |
| Special operator controls: Emergency stop button (illuminated and forced blocking) | No |
| Special operator controls: Acknowledgement button (3-stage) | No |
| Special operator controls: Key-operated switch | No |
| Special operator controls: Illuminated pushbutton | Yes |
| Camera: integrated camera | No |
| DP direct LEDs (LEDs as S7 output I/O): F1...Fx | 10 |
| Direct keys (keys as S7 input I/O): F1...Fx | 10 |
| Direct keys (keys as S7 input I/O): Direct keys (touch buttons as S7 input I/O) | 32 |
| Part number | 6AV2125-2JB03-0AX0 |
|---|---|
| Type designation | KTP900 Mobile |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4047623404781 |
| ETIM class | EC001427 |
| eCl@ss | 27330202 |
| 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 |
| Current consumption (rated value) | 450 mA |
|---|---|
| Starting current inrush I2t | 0.135 A2·s |
| Active power input, typ. | 11 W |
|---|
| Processor type | ARM |
|---|
| Flash | Yes |
|---|---|
| RAM | Yes |
| Memory available for user data | 12 Mbyte |
| Power LED | No |
|---|---|
| LED for safe | No |
| LED for communication | No |
| LED for battery | No |
| Vibrations | No |
| Clock: Hardware clock (real-time) | Yes |
|---|---|
| Clock: retentive | Yes |
| Clock: synchronizable | Yes |
| Number of industrial Ethernet interfaces | 1 |
|---|---|
| Number of PROFINET 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; USB 2.0 |
| Number of wireless interfaces | 0 |
| Number of SD card slots | 1 |
| PROFINET | Yes |
|---|---|
| Supports protocol for PROFINET IO | Yes |
| PROFIsafe | No |
| PROFIBUS | No |
| EtherNet/IP | Yes |
| MPI | No |
| Protocols (Ethernet): TCP/IP | Yes |
| Protocols (Ethernet): DHCP | Yes |
| Protocols (Ethernet): SNMP | Yes |
| Protocols (Ethernet): DCP | Yes |
| Protocols (Ethernet): LLDP | Yes |
| WEB characteristics: HTTP | Yes |
| WEB characteristics: HTTPS | Yes |
| WEB characteristics: HTML | Yes |
| WEB characteristics: XML | No |
| WEB characteristics: CSS | Yes |
| WEB characteristics: Active X | No |
| WEB characteristics: JavaScript | Yes |
| WEB characteristics: Java VM | No |
| Redundancy mode Media redundancy: MRP | Yes |
| Further protocols: MODBUS | Yes |
| Further protocols: other bus systems | No |
| supported standards: Radio standard WLAN 802.11 | No |
|---|---|
| supported standards: Bluetooth radio standard | No |
| Diagnoses: Diagnostic information readable | Yes |
|---|
| Emission of radio interference acc. to EN 55 011: Limit class A, for use in industrial areas | Yes |
|---|
| IP65 (all-round) | Yes |
|---|
| CE mark | Yes |
|---|---|
| cULus | Yes |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| Suitable for safety functions | No |
| Marine approval | Yes |
| Highest safety class achievable in safety mode: Performance level according to ISO 13849-1 | none |
| Highest safety class achievable in safety mode: SIL acc. to IEC 61508 | No |
| Use in hazardous areas: ATEX Zone 2 | No |
| Use in hazardous areas: ATEX Zone 22 | No |
| Use in hazardous areas: IECEx Zone 2 | No |
| Use in hazardous areas: IECEx Zone 22 | No |
| Use in hazardous areas: cULus Class I Zone 1 | No |
| Use in hazardous areas: cULus Class I Zone 2, Division 2 | No |
| Use in hazardous areas: FM Class I Division 2 | No |
| Marine approval: Germanischer Lloyd (GL) | Yes |
| Marine approval: American Bureau of Shipping (ABS) | Yes |
| Marine approval: Bureau Veritas (BV) | No |
| Marine approval: Det Norske Veritas (DNV) | Yes |
| Marine approval: Korean Register of Shipping (KRS) | No |
| Marine approval: Lloyds Register of Shipping (LRS) | Yes |
| Marine approval: Nippon Kaiji Kyokai (Class NK) | Yes |
| Marine approval: Polski Rejestr Statkow (PRS) | No |
| Marine approval: Chinese Classification Society (CCS) | Yes |
| Free fall: Fall height, max. | 1.2 m |
|---|---|
| Ambient temperature during operation: min. | 0 °C |
| Ambient temperature during operation: max. | 45 °C |
| Ambient temperature during storage/transportation: min. | -20 °C |
| Ambient temperature during storage/transportation: max. | 60 °C |
| Relative humidity: Operation, max. | 90 % |
| pre-installed operating system: Windows CE | Yes |
|---|
| 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) | No |
| Configuration software: STEP 7 Professional (TIA Portal) | No |
| Configuration software: WinCC flexible Compact | No |
| Configuration software: WinCC flexible Standard | No |
| Configuration software: WinCC flexible Advanced | No |
| Configuration software: WinCC Basic (TIA Portal) | No |
| Configuration software: WinCC Comfort (TIA Portal) | Yes |
| Configuration software: WinCC Advanced (TIA Portal) | Yes |
| Configuration software: WinCC Professional (TIA Portal) | Yes |
| Online languages: Number of online/runtime languages | 32 |
|---|---|
| Project languages: Languages per project | 32 |
| Libraries | Yes |
|---|---|
| Applications/options: Web browser | Yes |
| Applications/options: Pocket Word | No |
| Applications/options: Pocket Excel | No |
| Applications/options: PDF Viewer | Yes |
| Applications/options: Media Player | No |
| Applications/options: SIMATIC WinCC Sm@rtServer | Yes |
| Applications/options: SIMATIC WinCC Audit | Yes |
| Number of Visual Basic Scripts | Yes |
| Task planner: time-controlled | Yes |
| Task planner: task-controlled | Yes |
| Help system: Number of characters per info text | 500 |
| Multiproject: Number of projects (internal) | 0 |
| Multiproject: Number of projects (external) | 0 |
| Message system: Number of alarm classes | 32 |
| Bit messages: Number of bit messages | 4 000 |
| Analog messages: Number of analog messages | 200 |
| Analog messages: S7 alarm number procedure | Yes |
| Analog messages: System messages HMI | Yes |
| Analog messages: System event, more (SIMATIC S7, SINUMERIK, SIMOTION, ... ) | Yes |
| Analog messages: Number of characters per message | 80 |
| Analog messages: Number of process values per message | 8 |
| Analog messages: Acknowledgment groups | Yes |
| Analog messages: Message indicator | Yes |
| Message buffer: Number of entries | 1 024 |
| Message buffer: Circulating buffer | Yes |
| Message buffer: retentive | Yes |
| Message buffer: maintenance-free | Yes |
| Recipe management: Number of recipes | 300 |
| Recipe management: Data records per recipe | 500 |
| Recipe management: Entries per data record | 1 000 |
| Recipe management: Size of internal recipe memory | 2 Mbyte |
| Recipe management: Recipe memory expandable | Yes |
| Variables: Number of variables per device | 2 048 |
| Variables: Number of variables per screen | 400 |
| Variables: Limit values | Yes |
| Variables: Multiplexing | Yes |
| Variables: Structures | Yes |
| Variables: Arrays | Yes |
| Images: Number of configurable images | 500 |
| Images: Permanent window/default | Yes |
| Images: Global image | Yes |
| Images: Image selection by PLC | Yes |
| Images: Image number in the PLC | Yes |
| Image objects: Number of objects per image | 400 |
| Image objects: Text fields | Yes |
| Image objects: I/O fields | Yes |
| Image objects: Graphic I/O fields (graphics list) | Yes |
| Image objects: Symbolic I/O fields (text list) | Yes |
| Image objects: Date/time fields | Yes |
| Image objects: Switches | Yes |
| Image objects: Graphic display | Yes |
| Image objects: Icons | Yes |
| Image objects: Geometric objects | Yes |
| Complex image objects: Number of complex objects per screen | 20 |
| Complex image objects: Alarm view | Yes |
| Complex image objects: Trend view | Yes |
| Complex image objects: User view | Yes |
| Complex image objects: Status/control | Yes |
| Complex image objects: Sm@rtClient view | Yes |
| Complex image objects: Recipe view | Yes |
| Complex image objects: f(x) trend view | Yes |
| Complex image objects: System diagnostics view | Yes |
| Complex image objects: Media Player | No |
| Complex image objects: Bar graphs | Yes |
| Complex image objects: Sliders | Yes |
| Complex image objects: Pointer instruments | Yes |
| Complex image objects: Analog/digital clock | Yes |
| Lists: Number of text lists per project | 500 |
| Lists: Number of entries per text list | 500 |
| Lists: Number of graphics lists per project | 500 |
| Lists: Number of entries per graphics list | 500 |
| Archiving: Number of archives per device | 50 |
| Archiving: Number of entries per archive | 20 000 |
| Archiving: Message archive | Yes |
| Archiving: Process value archive | Yes |
| Archiving methods: Sequential archive | Yes |
| Archiving methods: Short-term archive | Yes |
| Memory location: Memory card | Yes |
| Memory location: USB memory | Yes |
| Memory location: Ethernet | Yes |
| Data storage format: CSV | Yes |
| Data storage format: TXT | No |
| Data storage format: RDB | Yes |
| Security: Number of user groups | 50 |
| Security: Number of user rights | 32 |
| Security: Number of users | 50 |
| Security: Password export/import | Yes |
| Security: SIMATIC Logon | Yes |
| Logging through printer: Alarms | Yes |
| Logging through printer: Report (shift log) | Yes |
| Logging through printer: Hardcopy | No |
| Logging through printer: Electronic print to file | No |
| Keyboard fonts: US English | Yes |
| Transfer (upload/download): MPI/PROFIBUS DP | No |
| Transfer (upload/download): USB | No |
| Transfer (upload/download): Ethernet | Yes |
| Transfer (upload/download): Wireless LAN | No |
| Transfer (upload/download): using external storage medium | Yes; Backup/restore |
| Process coupling: S7-1200 | Yes |
| Process coupling: S7-1500 | Yes |
| Process coupling: S7-200 | Yes |
| Process coupling: S7-300/400 | Yes |
| Process coupling: LOGO! | Yes |
| Process coupling: WinAC | Yes; WinAC RTX |
| Process coupling: SINUMERIK | Yes |
| Process coupling: SIMOTION | Yes |
| Process coupling: Allen Bradley (EtherNet/IP) | Yes |
| Process coupling: Allen Bradley (DF1) | No |
| Process coupling: Mitsubishi (MC TCP/IP) | Yes |
| Process coupling: Mitsubishi (FX) | Yes |
| Process coupling: OMRON (FINS TCP) | No |
| Process coupling: OMRON (Host Link) | No |
| Process coupling: Modicon (Modbus TCP/IP) | Yes |
| Process coupling: Modicon (Modbus RTU) | No |
| Process coupling: OPC UA Client | Yes |
| Process coupling: OPC UA Server | Yes |
| Service tools/configuration aids: Backup/Restore manually | Yes |
| Service tools/configuration aids: Backup/Restore automatically | Yes |
| Service tools/configuration aids: Simulation | Yes |
| Service tools/configuration aids: Device switchover | Yes |
| Printer | Yes |
|---|---|
| SIMATIC HMI MM memory card: Multi Media Card | Yes |
| SIMATIC HMI SD memory card: Secure Digital memory card | Yes |
| USB memory | Yes |
| Network camera | Yes |
| Additional software components loadable | Yes; SIMATIC options |
| Enclosure material (front): Plastic | Yes |
|---|---|
| Enclosure material (front): Aluminum | No |
| Enclosure material (front): Stainless steel | No |
| Weight (without packaging) | 1.5 kg |
|---|---|
| Weight (with packaging) | 1.6 kg |
| Miscellaneous Manufacturer Declara- | tion |
|---|
| Net weight | 1.635 kg |
|---|---|
| Country of origin | DE |
| Shipping weight | 2.135 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of KTP900 Mobile is 0.45 A.
The rated operational voltage of KTP900 Mobile is 24 V AC.
The tariff (HS) code on file for KTP900 Mobile is 85371091.
The EAN (GTIN) of KTP900 Mobile is 4047623404781.
KTP900 Mobile ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Learn how a PLC works, including scan cycle, I/O sizing, IEC 61131-3 programming, and hardware selection for ABB, Schneider, and Siemens. Shop at Stoklink.
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