{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7357-4AH01-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7357-4AH01-0AE0","canonicalUrl":"https://aoctrl.com/siemens/6ES7357-4AH01-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7357-4AH01-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300 FM 357-4 LE positioning module, 6ES7357-4AH01-0AE0, 750 kHz pulse frequency, 18 digital inputs, 8 digital outputs, 750 kbyte NC memory, 24 V DC supply, 118 x 200 x 125 mm.","salesMarkdown":"## Positioning module for multi-axis stepper and servo control The Siemens 6ES7357-4AH01-0AE0 is an FM 357-4 LE positioning module for the S7-300 rack. It drives up to 8 axes for any purpose, supporting stepper motors via pulse-direction outputs and servo drives via analog setpoints or SSI absolute encoder feedback. Pulse frequency tops out at 750 kHz, which translates to a maximum motor speed of 3000 RPM with a 1000-line encoder — adequate for most pick-and-place, indexing, and linear-motion axes in packaging and assembly machinery. The 750 kbyte NC program memory stores multi-segment motion profiles without external storage. ## Encoder interface and I/O complement The module accepts 5 V differential RS 422 encoder signals with a maximum cable length of 50 m shielded, dropping to 35 m in hybrid mode with servo axes. This covers most machine-mounted encoder runs without a repeater. Input frequency ceiling is 1 MHz; the SSI telegram length is parameterizable to 13, 21, or 25 bit. Digital I/O: 18 inputs and 8 outputs. Inputs accept 24 V signals with thresholds of -3 to +5 V for signal '0' and +11 to +30 V for signal '1'. Outputs switch up to 300 mA each at 24 V, suitable for driving small contactors, indicators, or solenoid valves directly. A 40-pin front connector is required. Power draw: 100 mA from the 5 V backplane bus plus 15 W typical total loss. The 24 V field supply powers the I/O and encoder interface; the 5 V rail only serves the backplane logic. The 40-pin front connector carries all field wiring — encoder signals, digital I/O, and 24 V supply. Cable entries are through the front face; allow 50 mm clearance above and below the module for connector insertion and cable bend radius.","metaTitle":"Siemens 6ES7357-4AH01-0AE0 FM 357-4 LE, 750 kHz","metaDescription":"Siemens 6ES7357-4AH01-0AE0 FM 357-4 LE positioning module, 750 kHz pulse frequency, 18 digital inputs, 8 digital outputs, 750 kbyte NC memory.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"5 V":"Yes","24 V":"Yes","Depth":"118 mm","Width":"200 mm","title":"6ES7357-4AH01-0AE0","Height":"125 mm","Functions":"8 for any purpose","Data signal":"DATA, notDATA","Memory size":"750 kbyte","description":"AS SPARE PART ONLY! SIMATIC S7-300, FUNCTION MODULE FM 357-2 (M80486 CPU) FOR POSITIONING AND PATH CONTROL OF STEPPER AND SERVO MOTORS (4 MEASURING CIRCUITS)","Clock signal":"CL, notCL","Input signal":"5 V difference signal (phys. RS 422)","Input voltage":"5 V difference signal (phys. RS 422)","For Signal \"0\"":"-3 to +5V","For Signal \"1\"":"+11 to +30V","Output current":"-3 to +3 mA","Type of memory":"NC program memory","Pulse frequency":"750 kHz","Weight, approx.":"1 200 g","lifecycle_stage":"eol_hot","Power loss, typ.":"15 W","Rated value (DC)":"24 V","Zero mark signal":"N, notN","Cable length, max.":"35 m","Trace mark signals":"A, notA, B, notB","Rated voltage range":"-10 to +10V","For Signal \"1\", Min.":"UP -3 V","For Signal \"1\", Typ.":"6 mA; 6 to 30 mA","Output current, max.":"300 mA","Clock frequency, max.":"1.5 Mbit/s","Input frequency, max.":"1 MHz","Absolute encoder (SSI)":"Yes","Switching current, max.":"1 A","Switching voltage, max.":"50 V","Number of digital inputs":"18","Required Front Connector":"1x 40-pin","Switching capacity, max.":"30 VA","Number of digital outputs":"8","Cable length, shielded, max.":"50 m; 35 m in hybrid mode with servo axes","from backplane bus 5 V DC, max.":"100 mA","Telegram length, parameterizable":"13, 21 or 25 bit","Differential output voltage, min.":"2 V; RL = 100 Ohm","Incremental encoder (symmetrical)":"Yes","Programmable traverse speed, max.":"1 000 m/min","Potential separation digital inputs":"Yes","Potential separation digital outputs":"Yes","For Signal \"0\" Residual Current, Max.":"2 mA","Differential output voltage for signal \"0\", max.":"1 V; Io = 20 mA","Differential output voltage for signal \"1\", min.":"3.7 V; Io = -20 mA","For Signal \"0\", Max. (Permissible Quiescent Current)":"2 mA","for signal \"1\" permissible range for 0 to 55 °C, max.":"0.5 A; with UPmax"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2,428.68","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b588f3d87a54c47c6f991d3f72bddefe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=52932&mlfb=6ES7357-4AH01-0AE0"},"ai":{"faq":[{"question":"What encoder types does 6ES7357-4AH01-0AE0 support?","answer":"The module accepts 5 V differential RS 422 incremental encoder signals (A, notA, B, notB) with a zero mark (N, notN). It also supports absolute encoders with SSI interface at a clock frequency up to 1.5 Mbit/s with parameterizable telegram lengths of 13, 21, or 25 bit. Maximum cable length is 50 m shielded, or 35 m in hybrid mode with servo axes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7357-4AH01-0AE0","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/6ES7357-4AH01-0AE0 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}}