{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1688-3EH47-2AX0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1688-3EH47-2AX0","canonicalUrl":"https://aoctrl.com/siemens/6AG1688-3EH47-2AX0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1688-3EH47-2AX0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6AG1688-3EH47-2AX0 SIMATIC HMI operator panel, PROFINET IRT with PROFIsafe, IP20 rear, -20 to 60 °C, mounting-clip install, 69 mm depth.","salesMarkdown":"## PROFINET IRT and PROFIsafe define the system fit The 6AG1688-3EH47-2AX0 is a SIMATIC HMI operator interface wired onto PROFINET with IRT support — meaning it sits on a determinism-grade network segment where cycle times are scheduled rather than best-effort, which is the prerequisite for any synchronized drive or safety traffic on the same line. PROFIsafe is enabled for either 2x SIL 3 (two-channel) or 4x SIL 2 (single-channel) emergency-stop sensors, so the panel doubles as a safety participant in the same PROFINET ring instead of needing a separate safety bus. ## CPU and engineering-tool pairing Compatibility with the S7-1500 is direct, and the S7-1200 line is supported via the ET 200pro CPU and ET 200S CPU — so the same panel drops onto both the high-end and the distributed-controller architectures. S7-300/400 integration requires an F-CPU with STEP 7 V11 SP1 or higher plus Safety V11 (or higher); without an F-CPU the same panel still works but on STEP 7 or SIMATIC STEP 7 Basic V11 (or higher). That split is the line the panel-builder has to track on legacy retrofits. ## Bus exclusion list narrows the sourcing target The bus matrix is sharply negative — CAN, MPI, MODBUS, PROFIBUS, SERCOS, EtherNet/IP, AS-Interface, INTERBUS, DeviceNet, SafetyBUS p, EIB/KNX, SUCOnet, PROFINET CBA, Data-Highway are all listed No. A buyer looking for a second-source panel must hold the requirement to PROFINET IRT and PROFIsafe; no other industrial Ethernet or legacy fieldbus on this part will substitute, which rules out a meaningful form-fit-function cross from another vendor. ## Panel-side environmental envelope Operating range spans -20 °C to 60 °C, so the panel survives unheated cabinets and warmer enclosure pockets without derating. Rear sealing is IP20, which dictates an enclosure-rated install — the panel is meant to be mounted inside a cabinet, not on a washdown-facing surface. Mechanical fit is a mounting-clip install with 69 mm overall depth including the angled SIMATIC Ethernet connector — the connector profile is the dimension that drives rear clearance, not the bezel. ## Display color set and runtime positioning The color rendering set is full — Red, Blue, Green, Yellow, and White are all listed Yes, so the panel can drive status and alarm palettes without monochrome fallbacks. WinAC support is Yes, which keeps the panel usable as a soft-PLC HMI; LOGO!, SIMOTION, and SINUMERIK are listed No. The housing is aluminum rather than plastic, matching the SIMATIC panel family build. ## Sourcing posture The PROFINET IRT and PROFIsafe capability, paired with the -20 to 60 °C range and aluminum housing, fixes this as a Siemens SIMATIC HMI panel position; cross-vendor substitution is not on the table given the bus exclusion list.","metaTitle":"Siemens 6AG1688-3EH47-2AX0 HMI, PROFINET, PROFIsafe","metaDescription":"Siemens 6AG1688-3EH47-2AX0 HMI operator interface, PROFINET IRT with PROFIsafe, -20 to 60 °C, quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["HMI Operator Interfaces"],"specifications":{"CAN":"No","IRT":"Yes","MPI":"No","MRP":"Yes","Red":"Yes","Blue":"Yes","Max.":"60 °C","Min.":"-20 °C","Green":"Yes","LOGO!":"No","White":"Yes","WinAC":"Yes","title":"6AG1688-3EH47-2AX0","MODBUS":"No","S7-200":"No","SERCOS":"No","TCP/IP":"No","Yellow":"Yes","CE mark":"Yes","EIB/KNX":"No","Plastic":"No","S7-1200":"Yes; with ET 200pro CPU and ET 200S CPU","S7-1500":"Yes","SUCOnet":"No","Aluminum":"Yes","INTERBUS":"No","PROFIBUS":"No","PROFINET":"Yes; incl. shared device, 3rd party PLC","SIMOTION":"No","DeviceNet":"No","IP (rear)":"IP20","PROFIsafe":"Yes; 2x SIL 3 (two-channel) or 4x SIL 2 (single-channel) emergency stop sensors","SINUMERIK":"No","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)","EtherNet/IP":"No","SafetyBUS p":"No","description":"SIPLUS HMI KP32F PN based on 6AV3688-3EH47-0AX0 with conformal coating, -20…+55 °C, Key Panel, 32 short-stroke keys with multi-colored LEDs, PROFINET interfaces with PROFIsafe, 16 DI+16 DI/DQ, 4 safety DI pins, 24 V DC can be looped through, parameterizable as of STEP 7 V5.5","AS-Interface":"No","Data-Highway":"No","PROFINET CBA":"No","Mounting type":"Mounting clip","Overall depth":"69 mm; Incl. angled SIMATIC Ethernet connector","Rack mounting":"No","Rail mounting":"No","Front mounting":"Yes","INTERBUS-Safety":"No","Illuminant test":"Yes; During switch on","Mitsubishi (FX)":"No","Stainless steel":"No","lifecycle_stage":"current","DeviceNet Safety":"No","LEDs (ON period)":"100 %","Modicon (Modbus)":"No","OMRON (FINS TCP)":"No","Rated value (DC)":"24 V; Non-isolated","IP (at the front)":"IP65","Mounting position":"vertical","Other Bus Systems":"No","Allen Bradley (DF1)":"No","Bureau Veritas (BV)":"No","Foundation Fieldbus":"No","Mitsubishi (MC TCP/IP)":"No","Mounting cutout, width":"277 mm; Max. thickness of mounting plate 2 - 6 mm","OMRON (LINK/Multilink)":"No","Type of supply voltage":"DC","Current per group, max.":"800 mA","Germanischer Lloyd (GL)":"No","Height of housing front":"155 mm","Local Operating Network":"No","Modicon (Modbus TCP/IP)":"No","Mounting cutout, height":"137 mm","Number of function keys":"32","Det Norske Veritas (DNV)":"No","Key and signal lamp test":"Yes; automatically when switching on","Number of digital inputs":"32; Total inputs and outputs max. 32 and 2x SIL 2 or 4x SIL 3","Short-circuit protection":"Yes","Current per channel, max.":"100 mA","Number of digital outputs":"16; Max. 32 inputs and outputs (total)","STEP 7 Basic (TIA Portal)":"Yes","With Resistive Load, Max.":"100 mA","With parameterizable keys":"Yes","Weight (without packaging)":"1 220 g","Width of the housing front":"295 mm","AS-Interface Safety at Work":"No","Allen Bradley (EtherNet/IP)":"No","At maximum tilt angle, max.":"45 °C","At maximum tilt angle, min.":"-20 °C","Number of short-stroke keys":"32","Polski Rejestr Statkow (PRS)":"No","Enclosure Type 4 at the front":"No","Number of PROFINET interfaces":"2; Incl. switch","Number of color modes for LED":"5; red, green, blue, yellow, white","Suitable for safety functions":"Yes","Wall mounting/direct mounting":"No","Enclosure Type 4x at the front":"Yes; Incl. NEMA12","Industrial Ethernet status LED":"2; Per port","Nippon Kaiji Kyokai (Class NK)":"No","For vertical installation, max.":"55 °C","For vertical installation, min.":"-20 °C","STEP 7 Professional (TIA Portal)":"Yes","American Bureau of Shipping (ABS)":"No","Current consumption (rated value)":"1 A","Lloyds Register of Shipping (LRS)":"No","Supports protocol for PROFINET IO":"Yes","Direct keys (keys as S7 input I/O)":"32","User-Definable Label Membrane Keys":"Yes","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","Mounting in portrait format possible":"Yes","Mounting in landscape format possible":"Yes","DP direct LEDs (LEDs as S7 output I/O)":"8; Adjustable brightness","Short-stroke keys (in switching cycles)":"1 500 000","Number of industrial Ethernet interfaces":"2; For the construction of lines and rings without external switch","Number of ports of the integrated switch":"2; Per port","Limit class A, for use in industrial areas":"Yes; Group 1, measured at a distance of 10 m","Installation altitude above sea level, max.":"2 000 m","Limit class B, for use in residential areas":"No","Protection against fouling acc. to EN 60664-3":"Yes; Type 1 protection","Ambient air temperature-barometric pressure-altitude":"Tmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m)","Number of slots for command devices and signaling units":"0","Resistant to commercially available coolants and lubricants":"Yes; Incl. diesel and oil droplets in the air","Maximum Permissible Angle Of Inclination Without External Ventilation":"30°; To the front/rear","Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830A":"Yes; Conformal coating, Class A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2,266.95 – $4,969.93","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ea0cff7dc59bfd1a834206c3e5ed2029.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1356940&mlfb=6AG1688-3EH47-2AX0"},"ai":{"faq":[{"question":"Is 6AG1688-3EH47-2AX0 available via RFQ confirmation and what is the lead time for an order?","answer":"Stock and lead time are confirmed at quote time. The part is run through independent distribution against the RFQ; current pricing and delivery window are returned with the quote rather than carried as a posted number."},{"question":"What compliance documentation does Siemens provide for 6AG1688-3EH47-2AX0 (RoHS, REACH, UL, IEC)?","answer":"The CE mark is listed Yes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1688-3EH47-2AX0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6AG1688-3EH47-2AX0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}