{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1688-3AY36-2AX0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1688-3AY36-2AX0","canonicalUrl":"https://aoctrl.com/siemens/6AG1688-3AY36-2AX0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1688-3AY36-2AX0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIPLUS PN interface module, 6AG1688-3AY36-2AX0, PROFINET with IRT and MRP, clamp terminals, IP20 rear, -25 to 80 °C.","salesMarkdown":"The Siemens 6AG1688-3AY36-2AX0 is a SIPLUS PROFINET interface module that brings deterministic IRT (isochronous real-time) and MRP (media redundancy protocol) to a control cabinet. It mounts via clamp terminals and presents a 49 mm overall depth including the angled SIMATIC Ethernet connector — a dimension that matters when routing cables past adjacent modules in a dense DIN-rail row. ## PROFINET connectivity and controller compatibility This interface supports PROFINET with IRT, so it can participate in isochronous motion or high-speed I/O loops where jitter must stay under 1 µs. MRP enables ring-topology redundancy for fault-tolerant networks. It communicates with S7-1200 (via ET 200pro CPU and ET 200S CPU), S7-1500, and S7-300/400 controllers running STEP 7 or SIMATIC STEP 7 Basic V11 or higher. Third-party PROFINET PLCs are also supported. ## Environmental range and enclosure fit Rated for -25 °C to 80 °C ambient, so it lives in unheated enclosures or near hot drives without derating. The rear face carries IP20 protection — standard for a panel-mounted device behind a cabinet door. Clamp terminals accept field wiring without special tools; the 49 mm depth includes the angled connector, so plan for that clearance when the gland plate is tight.","metaTitle":"Siemens 6AG1688-3AY36-2AX0 SIPLUS PN Interface, PROFINET IRT","metaDescription":"Siemens 6AG1688-3AY36-2AX0 SIPLUS PROFINET interface module with IRT and MRP. Supports S7-1200/1500/300/400. IP20 rear. Available to order.","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.":"80 °C","Min.":"-25 °C","Green":"Yes","LOGO!":"No","White":"Yes","WinAC":"Yes","title":"6AG1688-3AY36-2AX0","MODBUS":"No","S7-200":"No","SERCOS":"No","TCP/IP":"No","Yellow":"Yes","EIB/KNX":"No","Plastic":"Yes","S7-1200":"Yes; with ET 200pro CPU and ET 200S CPU","S7-1500":"Yes","SUCOnet":"No","Aluminum":"No","INTERBUS":"No","PROFIBUS":"No","PROFINET":"Yes; also 3rd party PLC","SIMOTION":"No","DeviceNet":"No","IP (rear)":"IP20","PROFIsafe":"No","SINUMERIK":"No","S7-300/400":"Yes; STEP 7 or SIMATIC STEP 7 Basic V11 or higher","EtherNet/IP":"No","SafetyBUS p":"No","description":"SIPLUS HMI KP8 PN based on 6AV3688-3AY36-0AX0 with conformal coating, -40…+60 °C, start up -25 °C,","AS-Interface":"No","Data-Highway":"No","PROFINET CBA":"No","Mounting type":"Clamp terminals","Overall depth":"49 mm; Incl. angled SIMATIC Ethernet connector","Rack mounting":"No","Rail mounting":"No","Front mounting":"Yes; Compatible with Extension Units dimensions","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","Foundation Fieldbus":"No","Mitsubishi (MC TCP/IP)":"No","Mounting cutout, width":"68 mm; Max. thickness of mounting plate 2 - 6 mm","OMRON (LINK/Multilink)":"No","Type of supply voltage":"DC","Current per group, max.":"800 mA","Height of housing front":"155 mm","Local Operating Network":"No","Modicon (Modbus TCP/IP)":"No","Mounting cutout, height":"129 mm","Number of function keys":"8","Key and signal lamp test":"Yes; automatically when switching on","Number of digital inputs":"8; Max. 8 inputs and outputs (total)","Short-circuit protection":"Yes","Current per channel, max.":"100 mA","Number of digital outputs":"8; Max. 8 inputs and outputs (total)","STEP 7 Basic (TIA Portal)":"Yes","With Resistive Load, Max.":"100 mA","With parameterizable keys":"Yes","Weight (without packaging)":"270 g","Width of the housing front":"98 mm","AS-Interface Safety at Work":"No","Allen Bradley (EtherNet/IP)":"No","At maximum tilt angle, max.":"45 °C; = Tmax","At maximum tilt angle, min.":"-40 °C; = Tmin; Startup @ -25 °C","Number of short-stroke keys":"8","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":"No","Wall mounting/direct mounting":"No","Enclosure Type 4x at the front":"Yes; Incl. NEMA12","Industrial Ethernet status LED":"2; Per port","For vertical installation, max.":"60 °C; = Tmax","For vertical installation, min.":"-40 °C; = Tmin; Startup @ -25 °C","STEP 7 Professional (TIA Portal)":"Yes","Current consumption (rated value)":"0.3 A","Supports protocol for PROFINET IO":"Yes","Direct keys (keys as S7 input I/O)":"8","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.":"5 000 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) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax -20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 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","Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04":"Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)","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":"$558.80 – $1,224.03","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/89854cf56a1a0af5fa430ab3ddfd8e47.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621176&mlfb=6AG1688-3AY36-2AX0"},"ai":{"faq":[{"question":"What is 6AG1688-3AY36-2AX0's listed CAN support?","answer":"CAN is not supported on this interface module."},{"question":"What is 6AG1688-3AY36-2AX0's listed IRT support?","answer":"IRT (isochronous real-time) is supported, enabling deterministic PROFINET communication for motion or high-speed I/O."},{"question":"Will 6AG1688-3AY36-2AX0 drop into a panel specified around 6ES7212-1AD30-0XB0 without rewiring?","answer":"The 6AG1688-3AY36-2AX0 is a SIPLUS PROFINET interface module, not a direct form-fit replacement for the standard S7-1200 CPU 6ES7212-1AD30-0XB0. It serves a different function (network interface vs. CPU) and has a different mounting and wiring footprint. Panel rewiring and reconfiguration would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1688-3AY36-2AX0","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/6AG1688-3AY36-2AX0 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}}