{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7253-1AA22-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7253-1AA22-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7253-1AA22-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7253-1AA22-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-200, EM253 positioning expansion module, 6ES7253-1AA22-0XA0, 200 kHz, for controlling stepper motors or servo drives, open-loop control via Micro/WIN.","salesMarkdown":"## What the EM253 does – and what trips people up The 6ES7253-1AA22-0XA0 is the SIMATIC S7-200 EM253 positioning module – a 200 kHz pulse train generator for controlling stepper or servo drives in open-loop positioning tasks. It accepts five P-reading digital inputs (STP, RPS, LMT+, LMT-, ZP) and provides four drive interfaces configurable as RS 422/485 or 5 V DC differential outputs. Cable lengths matter per input type – shielded runs up to 100 m on STP, RPS, LMT+, LMT-; ZP is limited to 10 m shielded. Unshielded, the four limit/ref inputs reach 30 m, but ZP is not recommended unshielded. This is a common source of intermittent faults during commissioning. Power draw: 190 mA from the 5 V backplane bus, plus up to 300 mA from the 24 V L+ (130 mA if using 12 V DC). Plan the S7-200 power budget accordingly – the CPU supplies the backplane bus, and the external 24 V feeds the inputs and encoder supply. ## CPU compatibility – which S7-200 it fits The EM253 module count per CPU is limited by the backplane bus power and addressing. Maximum modules: 5 with a CPU 226 or 226XM, 3 with a CPU 224, and only 1 with a CPU 222. These are absolute limits – exceeding them may cause erratic bus behavior or power failure. This is the only dedicated stepper/servo pulse output module for the S7-200 family. It is specific to S7-200 rack builds.","metaTitle":"6ES7253-1AA22-0XA0 SIMATIC S7-200 EM253, 200 kHz","metaDescription":"SIMATIC S7-200 EM253 positioning module, 200 kHz pulse rate, 5 P-reading inputs, 4 drive interfaces. Active production, sourced to order. Specs and compatibility.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Depth":"62 mm","Width":"71.2 mm","title":"6ES7253-1AA22-0XA0","Height":"80 mm","Functions":"Stop (STP), reference point switch (RPS), upper limit switch (LMT+), lower limit switch (LMT-), zero point (ZP)","description":"*** spare part *** SIMATIC S7-200, EM253 positioning expansion module, 200 kHz, for controlling stepper motors or servo drives, open-loop control, programming via Micro/WIN","2-Wire Sensor":"Yes","For Signal \"0\"":"STP, RPS, LMT+, LMT- DC 5 V; ZP DC 1 V","For Signal \"1\"":"STP, RPS, LMT+, LMT- DC 15 V; ZP DC 3 V","Shielded, Max.":"100 m; STP, RPS, LMT+, LMT- 100 m, ZP 10 m","Parameterizable":"Yes; STP, RPS, LMT+, LMT- 0.2 to 12.8 ms; ZP min 2 µs","Pulse frequency":"200 kHz","Weight, approx.":"190 g","lifecycle_stage":"current","Power loss, typ.":"2.5 W","Rated value (DC)":"24 V","Unshielded, Max.":"30 m; STP, RPS, LMT+, LMT- 30 m, ZP not recommended","Between The Channels":"Yes","Output current, max.":"50 mA","Number of digital inputs":"5; P-reading","Number of modules per CPU":"max. 5 with CPU 226/226XM, max. 3 with CPU 224, max. 1 with CPU 222","Between Different Circuits":"500 V AC","Number of drive interfaces":"4; optionally RS 422 / 485 or 5 V DC","Cable length, shielded, max.":"10 m","from supply voltage L+, max.":"300 mA; from 12 V DC, 130 mA from 24 V DC","from backplane bus 5 V DC, max.":"190 mA","Differential output voltage, min.":"2.8 V; RL = 200 ohms","Between The Channels, In Groups Of":"1 (STP, RPS, ZP), 2 (LMT-, LMT+)","permissible range, lower limit (DC)":"11 V","permissible range, upper limit (DC)":"30 V","Permissible Quiescent Current (2-Wire Sensor), Max.":"1 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$508.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/79f03836b32445049bcd1f9dd46736f6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=510255&mlfb=6ES7253-1AA22-0XA0"},"ai":{"faq":[{"question":"What is the maximum pulse frequency?","answer":"The EM253 outputs pulse trains up to 200 kHz, suitable for stepper motors and many servo drives in open-loop positioning."},{"question":"How many EM253 modules can I use with a CPU 224?","answer":"The CPU 224 supports a maximum of 3 EM253 modules. If you need more axes, consider a CPU 226 (up to 5 modules) or a CPU 222 (limited to 1 module)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7253-1AA22-0XA0","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/6ES7253-1AA22-0XA0 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}}