What Is a Programmable Logic Controller and How Does It Work
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The Siemens 6AV3688-3EH47-0AX0 SIMATIC HMI KP32F PN is a fail-safe key panel with 32 short-stroke keys and multicolor LEDs, combining 16 digital inputs, 16 configurable DI/DO points, and 4 safety-rated inputs over dual PROFINET interfaces with PROFIsafe. It runs on 24 V DC looped through the connector and carries an IP65 front rating for direct machine-panel mounting.
The 4 safety inputs and PROFIsafe interface separate this panel from the standard KP8/KP32 PN line: the 2x SIL 3 or 4x SIL 2 emergency-stop wiring lets an emergency-stop button on this panel feed a fail-safe CPU directly, without a separate safety relay in the cabinet. With 32 keys against the KP8 PN's 8, pick this panel when the station needs a full operator keypad plus safety inputs on one PROFINET drop rather than a small jog/select panel.
The aluminum front, IP65 rating, and mounting-clip installation suit this panel for machine control desks that combine standard push-button functions with an integrated emergency-stop circuit, cutting the wiring compared to a discrete pushbutton enclosure feeding a separate safety module.
| Product type designation | KP32F PN |
|---|
| With parameterizable keys | Yes |
|---|---|
| Membrane keyboard: user-definable label membrane keys | Yes |
| Function keys: Number of function keys | 32 |
| Short-stroke keys: Number of short-stroke keys | 32 |
| Expansions for operator control of the process: DP direct LEDs (LEDs as S7 output I/O) | 8; Adjustable brightness |
| Expansions for operator control of the process: Number of color modes for LED | 5; red, green, blue, yellow, white |
| Expansions for operator control of the process: Direct keys (keys as S7 input I/O) | 32 |
| Mounting type | Mounting clip |
|---|---|
| Mounting position | vertical |
| Rack mounting | No |
| Front mounting | Yes |
| Rail mounting | No |
| 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 | 30°; To the front/rear |
| Number of slots for command devices and signaling units | 0 |
| Part number | 6AV3688-3EH47-0AX0 |
|---|---|
| Type designation | KP32F PN |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515080350 |
| ETIM class | EC001415 |
| eCl@ss | 27330204 |
| Type of supply voltage | DC |
|---|---|
| Rated value (DC) | 24 V; 24 V looped through at connector, no interruption on pulling |
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 28.8 V |
| Current consumption (rated value) | 1 A |
|---|
| Number of digital inputs | 32; Total inputs and outputs max. 32 and 2x SIL 2 or 4x SIL 3 |
|---|---|
| Input voltage: Rated value (DC) | 24 V |
| Number of digital outputs | 16; Max. 32 inputs and outputs (total) |
|---|---|
| Short-circuit protection | Yes |
| Switching capacity of the outputs: with resistive load, max. | 100 mA |
| Output voltage: Rated value (DC) | 24 V; Non-isolated |
| Total current of the outputs: Current per channel, max. | 100 mA |
| Total current of the outputs: Current per group, max. | 800 mA |
| Number of industrial Ethernet interfaces | 2; For the construction of lines and rings without external switch |
|---|---|
| Number of PROFINET interfaces | 2; Incl. switch |
| Industrial Ethernet: Industrial Ethernet status LED | 2; Per port |
| Industrial Ethernet: Number of ports of the integrated switch | 2; Per port |
| PROFINET | Yes; incl. shared device, 3rd party PLC |
|---|---|
| Supports protocol for PROFINET IO | Yes |
| PROFINET CBA | Yes |
| IRT | No |
| PROFIsafe | Yes; 2x SIL 3 (two-channel) or 4x SIL 2 (single-channel) emergency stop sensors |
| PROFIBUS | No |
| EtherNet/IP | No |
| MPI | No |
| AS-Interface | No |
| EIB/KNX | No |
| Protocols (Ethernet): TCP/IP | No |
| Redundancy mode Media redundancy: MRP | Yes |
| Further protocols: AS-Interface Safety at Work | No |
| Further protocols: CAN | No |
| Further protocols: Data-Highway | No |
| Further protocols: DeviceNet | No |
| Further protocols: DeviceNet Safety | No |
| Further protocols: Foundation Fieldbus | No |
| Further protocols: INTERBUS | No |
| Further protocols: INTERBUS-Safety | No |
| Further protocols: Local Operating Network | No |
| Further protocols: MODBUS | No |
| Further protocols: SafetyBUS p | No |
| Further protocols: SERCOS | No |
| Further protocols: SUCOnet | No |
| Further protocols: other bus systems | No |
| Illuminant test | Yes; During switch on |
|---|---|
| Key and signal lamp test | Yes; automatically when switching on |
| Emission of radio interference acc. to EN 55 011: Limit class A, for use in industrial areas | Yes; Group 1, measured at a distance of 10 m |
|---|
| IP (at the front) | IP65 |
|---|---|
| IP (rear) | IP20 |
| NEMA (front): Enclosure Type 4 at the front | No |
| NEMA (front): Enclosure Type 4x at the front | Yes; Incl. NEMA12 |
| CE mark | Yes |
|---|---|
| cULus | Yes |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| EAC (formerly Gost-R) | Yes |
| CCC | No; not necessary |
| Suitable for safety functions | Yes |
| Ecological footprint: environmental product declaration Global warming potential | Yes |
| Ecological footprint: global warming potential, (total) [CO2 eq] | 113 kg |
| Ecological footprint: global warming potential, (during production) [CO2 eq] | 38.5 kg |
| Ecological footprint: global warming potential, (during operation) [CO2 eq] | 82.3 kg |
| Ecological footprint: global warming potential, (after end of life cycle) [CO2 eq] | -8.27 kg |
| Use in hazardous areas: ATEX Zone 2 | No |
| Use in hazardous areas: ATEX 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) | No |
| Marine approval: American Bureau of Shipping (ABS) | No |
| Marine approval: Bureau Veritas (BV) | No |
| Marine approval: Det Norske Veritas (DNV) | No |
| Marine approval: Lloyds Register of Shipping (LRS) | No |
| Marine approval: Nippon Kaiji Kyokai (Class NK) | No |
| Marine approval: Polski Rejestr Statkow (PRS) | No |
| Ambient temperature during operation: min. | 0 °C |
|---|---|
| Ambient temperature during operation: max. Operation (vertical installation) | 55 °C |
| Ambient temperature during operation: For vertical installation, min. | 0 °C |
| Ambient temperature during operation: At maximum tilt angle, min. | 0 °C |
| Ambient temperature during storage/transportation: min. | -20 °C |
| Ambient temperature during storage/transportation: max. | 60 °C |
| Relative humidity: Operation, max. | 95 %; no condensation |
| Configuration software: STEP 7 Basic (TIA Portal) | Yes |
|---|---|
| Configuration software: STEP 7 Professional (TIA Portal) | Yes |
| Process coupling: S7-1200 | Yes; with ET 200pro CPU and ET 200S CPU |
|---|---|
| Process coupling: S7-1500 | Yes |
| Process coupling: S7-200 | No |
| Process coupling: S7-300/400 | Yes; with F-CPU: STEP 7 V11 SP1 or higher and Safety V11 (or higher), without F-CPU STEP 7 or SIMATIC STEP 7 Basic V11 (or higher) |
| Process coupling: LOGO! | No |
| Process coupling: WinAC | Yes |
| Process coupling: SINUMERIK | No |
| Process coupling: SIMOTION | No |
| Process coupling: Allen Bradley (EtherNet/IP) | No |
| Process coupling: Allen Bradley (DF1) | No |
| Process coupling: Mitsubishi (MC TCP/IP) | No |
| Process coupling: Mitsubishi (FX) | No |
| Process coupling: OMRON (FINS TCP) | No |
| Process coupling: OMRON (Host Link) | No |
| Process coupling: Modicon (Modbus TCP/IP) | No |
| Process coupling: Modicon (Modbus RTU) | No |
| Enclosure material (front): Plastic | No |
|---|---|
| Enclosure material (front): Aluminum | Yes |
| Enclosure material (front): Stainless steel | No |
| Service life: Short-stroke keys (in switching cycles) | 1 500 000 |
| Service life: LEDs (ON period) | 100 % |
| Width of the housing front | 295 mm |
|---|---|
| Height of housing front | 155 mm |
| Mounting cutout, width | 277 mm; Max. thickness of mounting plate 2 - 6 mm |
| Mounting cutout, height | 137 mm |
| mounting depth | 37 mm; Incl. angled SIMATIC Ethernet connector |
| Weight (without packaging) | 1 220 g |
|---|
| Net weight | 1.871 kg |
|---|---|
| Country of origin | DE |
| Shipping weight | 2.371 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 KP32F PN is 1 A.
The rated operational voltage of KP32F PN is 24; 24 looped through at connector, no interruption on pulling V AC.
The tariff (HS) code on file for KP32F PN is 85371091.
The EAN (GTIN) of KP32F PN is 4025515080350.
KP32F PN 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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