{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7323-1BH01-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7323-1BH01-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7323-1BH01-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7323-1BH01-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SM323, 6ES7323-1BH01-0AA0, digital I/O module for S7-300, 8 inputs / 8 outputs, 24 VDC, 0.5 A per output, 120 x 40 x 125 mm.","salesMarkdown":"## 8 DI / 8 DO mix, 24 VDC, 0.5 A per output The Siemens 6ES7323-1BH01-0AA0 SM323 packs eight 24 VDC digital inputs and eight digital outputs in a single 40 mm-wide module for the S7-300 rack. Each output is rated 0.5 A continuous, and the group can deliver 4 A up to 60 °C without derating — so a full bank of eight outputs at 0.5 A each stays within the thermal budget. ## Switching speeds and load limits Resistive-load switching runs at 100 Hz max; inductive loads drop to 0.5 Hz. The output turns on in 100 µs and off in 500 µs (hardware response), but the input filter adds 1.2–4.8 ms of debounce on both edges — account for that in your cycle-time budget. Short-circuit protection is built in, with a typical response threshold of 1 A. The module draws 3.5 W typical power loss, and isolation is tested at 500 V DC between the channels and the backplane.","metaTitle":"Siemens 6ES7323-1BH01-0AA0 SM323, 8 DI / 8 DO, 24 VDC, 0.5 A","metaDescription":"Siemens SM323 6ES7323-1BH01-0AA0 digital I/O module for S7-300. 8 inputs, 8 outputs, 24 VDC, 0.5 A per output. EOL hot — sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Output Modules"],"specifications":{"Depth":"120 mm","Width":"40 mm","Alarms":"No","Height":"125 mm","Lower Limit":"48 Ω","Upper Limit":"4 kΩ","For Uprating":"No","2-Wire Sensor":"Yes","For Signal \"0\"":"-30 to +5 V","For Signal \"1\"":"13 to 30V","Shielded, Max.":"1 000 m","Weight, approx.":"220 g","lifecycle_stage":"eol_hot","\"0\" To \"1\", Max.":"100 µs","\"1\" To \"0\", Max.":"500 µs","Power loss, typ.":"3.5 W","Rated value (DC)":"24 V","Unshielded, Max.":"600 m","On Lamp Load, Max.":"10 Hz","up to 40 °C, max.":"4 A","up to 60 °C, max.":"4 A","At \"0\" To \"1\", Max.":"4.8 ms","At \"0\" To \"1\", Min.":"1.2 ms","At \"1\" To \"0\", Max.":"4.8 ms","At \"1\" To \"0\", Min.":"1.2 ms","Between The Channels":"Yes","Diagnostics function":"No","For Signal \"1\", Min.":"L+ (-0.8 V)","For Signal \"1\", Typ.":"7 mA","Isolation tested with":"500 V DC","Type of input voltage":"DC","Number of digital inputs":"8","Required Front Connector":"20-pin","Response threshold, typ.":"1 A","Short-circuit protection":"Yes","Number of digital outputs":"8","With Inductive Load, Max.":"0.5 Hz","With Resistive Load, Max.":"100 Hz","For Signal \"1\" Rated Value":"0.5 A","Controlling a digital input":"Yes","For Redundant Control Of A Load":"Yes; only outputs of the same group","from backplane bus 5 V DC, max.":"40 mA","Between The Channels, In Groups Of":"8","For Signal \"1\" Minimum Load Current":"5 mA","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","For Signal \"0\" Residual Current, Max.":"0.5 mA","Between The Channels And Backplane Bus":"Yes; Optocoupler","For Signal \"1\" Permissible Range, Max.":"0.6 A","For Signal \"1\" Permissible Range, Min.":"5 mA","Status indicator digital input (green)":"Yes","Status indicator digital output (green)":"Yes","from load voltage L+ (without load), max.":"40 mA","Limitation of inductive shutdown voltage to":"L+ (-53 V)","Permissible Quiescent Current (2-Wire Sensor), Max.":"2 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$177.80 – $275.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4f77c4979fd1c7b34be9c73731d8e2b2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=158692&mlfb=6ES7323-1BH01-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7323-1BH01-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for 6ES7323-1BH01-0AA0?","answer":"Siemens has not published a direct drop-in successor for this order code. For new designs, consider the current SM323 variant or a separate DI/DO combination module that matches your I/O count and voltage. Confirm the backplane compatibility and wiring before substituting."},{"question":"Is 6ES7323-1BH01-0AA0 compatible with S7-300?","answer":"Yes, this module is designed for the S7-300 rack. It plugs into any standard S7-300 backplane slot and uses the 20-pin front connector for field wiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7323-1BH01-0AA0","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/6ES7323-1BH01-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}