What Is a Programmable Logic Controller and How Does It Work
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The Siemens 6AV2124-1JC01-0AX0 is a SIMATIC KP900 Comfort HMI operator panel with a 9-inch TFT display and 26 illuminated function keys for key-based (non-touch) machine operation. It runs on 24V DC, communicates over PROFINET, PROFIBUS DP, MPI and EtherNet/IP, and is rated IP65 at the front for washdown-adjacent panel mounting. Configuration memory is 12 MB under Windows CE 6.0.
The KP900 Comfort's 26 discrete, LED-illuminated function keys make it the choice over touch-only Comfort Panels where operators wear gloves, work in vibration-heavy environments, or need tactile confirmation without looking at the screen. Each key maps to an S7 input/output bit for direct machine control, separate from the touchscreen buttons on the TP-series siblings. At 0.75 A / 18 W typical draw it sits well within a shared 24V DC panel supply alongside PLC I/O. Choose the smaller KP900 over the 12-inch KP1200 when panel space is limited and the operator interacts mainly through fixed keys rather than onscreen navigation.
Fits machine-side operator stations in food/beverage and packaging lines where wash-down splash (IP65 front) and glove operation are routine, connecting directly into an existing S7 PLC network over PROFINET or PROFIBUS without a protocol gateway.
| Product type designation | KP900 Comfort |
|---|
| Design of display | TFT |
|---|---|
| Screen diagonal | 9 in |
| Display width | 195 mm |
| Display height | 117 mm |
| 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) | 80 000 h |
| Backlighting: Backlight dimmable | Yes; 0-100 % |
| Function keys: Number of function keys | 26 |
|---|---|
| Function keys: Number of function keys with LEDs | 26 |
| Function keys: Keys with LED | Yes |
| Function keys: System keys | Yes |
| Function keys: Numeric keyboard | Yes |
| Function keys: alphanumeric keyboard | Yes; similar to mobile phone |
| Touch operation: Design as touch screen | No; without |
| DP direct LEDs (LEDs as S7 output I/O): F1...Fx | 26 |
| Direct keys (keys as S7 input I/O): F1...Fx | 26 |
| Direct keys (keys as S7 input I/O): Direct keys (touch buttons as S7 input I/O) | 0 |
| Part number | 6AV2124-1JC01-0AX0 |
|---|---|
| Type designation | KP900 Comfort |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Phase-out announced by the manufacturer |
| EAN | 4025515079040 |
| ETIM class | EC001412 |
| eCl@ss | 27330201 |
| Mounting position | vertical |
|---|---|
| Wall mounting/direct mounting | No |
| Mounting in portrait format possible | No |
| Mounting in landscape format possible | Yes |
| maximum permissible angle of inclination without external ventilation | 35° |
| 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) | 0.75 A |
|---|---|
| Starting current inrush I2t | 0.5 A2·s |
| Active power input, typ. | 18 W |
|---|
| Processor type | X86 |
|---|
| Flash | Yes |
|---|---|
| RAM | Yes |
| Memory available for user data | 12 Mbyte |
| Info LED | Yes |
|---|---|
| Power LED | No |
| Error LED | No |
| Acoustics: Buzzer | No |
| Acoustics: Speaker | Yes |
| Clock: Hardware clock (real-time) | Yes |
|---|---|
| Clock: Software clock | Yes |
| Clock: retentive | Yes; Back-up duration typically 6 weeks |
| Clock: synchronizable | Yes |
| Number of industrial Ethernet interfaces | 1; 2 ports (switch) |
|---|---|
| Number of RS 485 interfaces | 1; RS 422 / 485 combined |
| Number of RS 422 interfaces | 1 |
| Number of RS 232 interfaces | 0 |
| Number of USB interfaces | 2; USB 2.0 |
| USB Mini B | 1; 5-pole |
| Number of 20 mA interfaces (TTY) | 0 |
| Number of parallel interfaces | 0 |
| Number of SD card slots | 2 |
| With software interfaces | No |
| Industrial Ethernet: Industrial Ethernet status LED | 2 |
| Industrial Ethernet: Number of ports of the integrated switch | 2 |
| PROFINET | Yes |
|---|---|
| Supports protocol for PROFINET IO | Yes |
| IRT | Yes; As of WinCC V12 |
| PROFIBUS | Yes |
| EtherNet/IP | Yes |
| MPI | Yes |
| 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 | Yes |
| WEB characteristics: CSS | Yes |
| WEB characteristics: Active X | Yes |
| WEB characteristics: JavaScript | Yes |
| WEB characteristics: Java VM | No |
| Redundancy mode Media redundancy: MRP | Yes; As of WinCC V12 |
| Further protocols: CAN | No |
| Further protocols: MODBUS | Yes |
| Diagnoses: Diagnostic information readable | Yes; S7 controller |
|---|
| Emission of radio interference acc. to EN 55 011: Limit class A, for use in industrial areas | Yes |
|---|
| IP (at the front) | IP65 |
|---|---|
| IP (rear) | IP20 |
| NEMA (front): Enclosure Type 4 at the front | Yes |
| NEMA (front): Enclosure Type 4x at the front | Yes |
| CE mark | Yes |
|---|---|
| cULus | Yes |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| Use in hazardous areas: ATEX Zone 2 | Yes |
| Use in hazardous areas: ATEX Zone 22 | Yes |
| Use in hazardous areas: IECEx Zone 2 | Yes |
| Use in hazardous areas: IECEx Zone 22 | Yes |
| Use in hazardous areas: cULus Class I Zone 1 | No |
| Use in hazardous areas: cULus Class I Zone 2, Division 2 | Yes |
| Use in hazardous areas: FM Class I Division 2 | Yes |
| Marine approval: Germanischer Lloyd (GL) | Yes |
| Marine approval: American Bureau of Shipping (ABS) | Yes |
| Marine approval: Bureau Veritas (BV) | Yes |
| Marine approval: Det Norske Veritas (DNV) | Yes |
| Marine approval: Lloyds Register of Shipping (LRS) | Yes |
| Marine approval: Nippon Kaiji Kyokai (Class NK) | Yes |
| Marine approval: Polski Rejestr Statkow (PRS) | No |
| Ambient temperature during operation Operation (vertical installation): For vertical installation, min. | 0 °C |
|---|---|
| Ambient temperature during storage/transportation: min. | -20 °C |
| Ambient temperature during storage/transportation: max. | 60 °C |
| Relative humidity: Operation, max. | 90 %; no condensation |
| proprietary | No |
|---|---|
| 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; from V11 |
| Configuration software: WinCC Advanced (TIA Portal) | Yes; from V11 |
| Configuration software: WinCC Professional (TIA Portal) | Yes; from V11 |
| 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 | Yes |
| Applications/options: Pocket Excel | Yes |
| Applications/options: PDF Viewer | Yes |
| Applications/options: Media Player | Yes |
| 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 | 70 |
| Message system: Number of alarm classes | 32 |
| Message system: Bit messages | Yes |
| Message system: Number of bit messages | 4 000 |
| Message system: Analog messages | Yes |
| Message system: Number of analog messages | 200 |
| Message system: S7 alarm number procedure | Yes |
| Message system: System messages HMI | Yes |
| Message system: System event, more (SIMATIC S7, SINUMERIK, SIMOTION, ... ) | Yes |
| Message system: Number of characters per message | 80 |
| Message system: Number of process values per message | 8 |
| Message system: Acknowledgment groups | Yes |
| Message system: 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: Pop-up images | Yes |
| Images: Slide-in images | 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: Buttons | 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 | Yes |
| Complex image objects: HTML browser | Yes |
| Complex image objects: PDF display | Yes |
| Complex image objects: IP camera display | Yes |
| 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 | Yes |
| 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 | Yes |
| Logging through printer: Electronic print to file | Yes; PDF, HTML |
| Keyboard fonts: US English | Yes |
| Transfer (upload/download): MPI/PROFIBUS DP | Yes |
| Transfer (upload/download): USB | Yes |
| Transfer (upload/download): Ethernet | Yes |
| Transfer (upload/download): using external storage medium | Yes |
| 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 |
| Process coupling: SINUMERIK | Yes; with SINUMERIK option package |
| Process coupling: SIMOTION | Yes |
| Process coupling: Allen Bradley (EtherNet/IP) | Yes |
| Process coupling: Allen Bradley (DF1) | Yes |
| Process coupling: Mitsubishi (MC TCP/IP) | Yes |
| Process coupling: Mitsubishi (FX) | Yes |
| Process coupling: OMRON (FINS TCP) | No |
| Process coupling: OMRON (Host Link) | Yes |
| Process coupling: Modicon (Modbus TCP/IP) | Yes |
| Process coupling: Modicon (Modbus RTU) | Yes |
| 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; Up to 128 MB |
| SIMATIC HMI SD memory card: Secure Digital memory card | Yes; Up to 2 GB |
| SIMATIC HMI CF memory card Compact Flash Card | No |
| USB memory | Yes |
| SIMATIC IPC USB Flashdrive (USB stick) | Yes; Up to 16 GB |
| SIMATIC HMI USB stick | Yes; Up to 8 GB |
| Network camera | Yes |
| Enclosure material (front): Plastic | No |
|---|---|
| Enclosure material (front): Aluminum | Yes |
| Enclosure material (front): Stainless steel | No |
| Width of the housing front | 361.2 mm |
|---|---|
| Height of housing front | 230 mm |
| Mounting cutout, width | 338 mm |
| Mounting cutout, height | 206 mm |
| mounting depth | 63 mm |
| Weight (without packaging) | 2.7 kg |
|---|---|
| Weight (with packaging) | 3.4 kg |
| Miscellaneous Manufacturer Declara- | tion |
|---|
| Net weight | 3.31 kg |
|---|---|
| Country of origin | DE |
| Shipping weight | 3.81 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 KP900 Comfort is 0.75 A.
The rated operational voltage of KP900 Comfort is 24 V AC.
The tariff (HS) code on file for KP900 Comfort is 85371091.
The EAN (GTIN) of KP900 Comfort is 4025515079040.
KP900 Comfort ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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