{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7531-7LK00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7531-7LK00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7531-7LK00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7531-7LK00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-1500, SM 531 analog input modules, 6ES7531-7LK00-0AB0, AI 24xCVM HF, 24 channels, up to 24 bit resolution, 0.1% accuracy, 600 V DC insulation, active product.","salesMarkdown":"## What this module is built for The 6ES7531-7LK00-0AB0 is a SIMATIC S7-1500 analog input module purpose-built for cell voltage measurement — think battery stacks, fuel cells, or supercapacitor banks where you need to track each individual cell. It's called AI 24xCVM HF, meaning 24 channels with High-Feature accuracy: up to 24-bit resolution and 0.1% of full scale. The module comes with the infeed element, shielding bracket, and a push-in front connector included, so you're not hunting for accessories. One hard note from the Siemens docs: this module is <I>not</I> suitable for regular +/-5 V voltage measurement. It's for isolated cell-level channels, not general-purpose analog inputs. Insulation voltage between groups is rated at 600 V DC, with channels arranged in two groups of 12. ## Integration into the S7-1500 rack Mounts onto the S7-1500 backplane like any standard analog input module. The push-in front connector (included) makes wiring the 24 channels straightforward — just strip and push. Pay attention to the shielding bracket that comes in the box: for cell voltage measurement in an industrial environment with motor drives or other noise sources, you'll want that shield tied to your panel ground. Also, the module supports diagnostic interrupts and hardware interrupts, which you can map in TIA Portal. It also allows calibration in RUN mode, so you can re-zero without stopping the process. Physical dimensions are about 19.3 x 16.1 x 5 cm (L x W x H), so it takes up two slots worth of width in the standard S7-1500 mounting rail.","metaTitle":"Siemens 6ES7531-7LK00-0AB0 SM 531 analog input, 24 ch cell v","metaDescription":"SIMATIC S7-1500 analog input module AI 24xCVM HF for cell voltage measurement. 24-bit resolution, 0.1% accuracy, 600 V DC insulation. Active product, RoHS, REACH. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog Input Modules"],"specifications":{"title":"6ES7531-7LK00-0AB0","Group Code":"R135","description":"SIMATIC S7-1500, analog input module for cell voltage measurement, AI 24xCVM HF, up to 24 bit resolution, accuracy: 0.1%, 24 channels in groups of 12, insulation voltage: 600 V DC, diagnostics, hardware interrupts, calibrate in RUN mode; delivery including infeed element, shielding bracket and shield terminal: front connector (push-in) included note: Module is not suitable for regular voltage measurement of +/- 5 V!","Product Group":"4501","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"SM 531 analog input modules","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : 9N9999","Packaging dimensions (L x W x H)":"19.3 x 16.1 x 5.00 cm","Compliance with the substance restrictions according to RoHS directive":"Since: 03-06-24","REACH Art. 33 Duty to inform according to the current list of candidates":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4136181889640ea98a569860b9d970a8.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/6ES7531-7LK00-0AB0?tree=CatalogTree"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7531-7LK00-0AB0","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/6ES7531-7LK00-0AB0 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}}