{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7450-1AP00-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7450-1AP00-0AE0","canonicalUrl":"https://aoctrl.com/siemens/6ES7450-1AP00-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7450-1AP00-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-400 Digital Output Module, 6ES7450-1AP00-0AE0, 2 counter inputs 200 kHz, 6 digital inputs, 4 digital outputs, RS 422 interface, 24 V DC, 25 x 290 x 210 mm.","salesMarkdown":"## What this counter module does in an S7-400 rack The 6ES7450-1AP00-0AE0 is a counter module for the S7-400 platform — it decodes incremental encoder signals (RS 422, differential) and tracks position or event counts at up to 200 kHz per channel. Two 32-bit (or ±31-bit) counter inputs handle gate-start, gate-stop, and counter-set functions independently, with a minimum pulse width of 2.5 µs at 200 kHz or 25 µs at 20 kHz — parameterisable per channel. Six digital inputs (24 V, sink/source) capture limit-switch or registration-mark signals, and four digital outputs (0.5 A each, clocked short-circuit protection) drive small loads or reset counters directly — no separate I/O module needed for this loop. ## Encoder interface and signal conditioning The RS 422 differential input accepts encoder signals with a minimum differential voltage of 0.5 V — signal '1' threshold is +11 to +28.8 V, signal '0' is -28.8 to +5 V (or -30 to +5 V at the input side), giving noise immunity on long cable runs. A 220 Ω terminating resistor is built in, so you don't need an external terminator at the module end for the encoder line. Direction control uses one pulse train plus one direction level (24 V directional element), and the 5 V encoder supply is regulated to 5.2 V ±2 % — enough for most incremental encoders drawing up to 300 mA total. The module occupies a single S7-400 slot (25 mm wide, 290 mm high, 210 mm deep) and requires a 48-pin front connector — order that separately; it does not ship with the module. Fourteen green LEDs show status for counter readings, direction, inputs, and outputs — handy for on-commissioning sanity checks without a programming device. Diagnostic and hardware interrupts are parameterisable and reported via the backplane bus, with red LEDs for internal (INTF) and external (EXTF) faults. The 6ES7450-1AP00-0AE0 is in a mature lifecycle stage — still available through distribution channels, but not in active factory ramp production. No direct official successor is listed for this order code. If you're planning a new S7-400 build or a BOM freeze, confirm availability at quote time — we source this against an RFQ and confirm current pricing and lead time per your quantity.","metaTitle":"Siemens 6ES7450-1AP00-0AE0 Digital Output Module, 200 kHz","metaDescription":"Siemens 6ES7450-1AP00-0AE0 S7-400 digital output module with 2 counter inputs at 200 kHz, 6 DI, 4 DO, RS 422 encoder interface.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Output Modules"],"specifications":{"5 V":"Yes; 5.2 V ±2 %","24 V":"Yes; 1L+ (-3 V)","Type":"RS 422","Depth":"210 mm","Width":"25 mm","title":"6ES7450-1AP00-0AE0","Height":"290 mm","Functions":"1 for gate start, 1 for gate stop, 1 for setting the counter","description":"********** Replacement part ********* SIMATIC S7-400, Function module FM 450-1 for counter function with 2 channels, incl. configuration package on CD","24 V initiator":"Yes","For Signal \"0\"":"-28.8 ... +5V","For Signal \"1\"":"+11 to +28.8V","Parameterizable":"Yes","Weight, approx.":"650 g","lifecycle_stage":"mature","\"0\" To \"1\", Max.":"300 µs","Diagnostic alarm":"Yes; Parameterizable","Power loss, typ.":"9 W","Rated value (DC)":"24 V","Status indicator":"Yes; 14 green LEDs for status of CR, DIR, inputs and outputs","Hardware interrupt":"Yes; Parameterizable","At \"0\" To \"1\", Max.":"2.5 µs; ≥ 2.5 µs (200 kHz); ≤ 25 µs (20 kHz)","Minimum pulse width":"≥ 2.5 µs (200 kHz); ≥ 25 µs (20 kHz) (parameterizable)","Diagnostics function":"Yes","For Signal \"0\", Max.":"3 V","For Signal \"1\", Min.":"2L+ (-1,5 V)","For Signal \"1\", Typ.":"9 mA","Output current, max.":"300 mA","Terminating resistor":"220 Ω","Isolation tested with":"500 V","24 V directional element":"Yes; 1 pulse train, 1 direction level","Counting frequency, max.":"200 kHz","Number of counter inputs":"2; 32 bit or ±31 bit","Number of digital inputs":"6","Required Front Connector":"1x 48-pin","Short-circuit protection":"Yes; Clocked electronically","Number of digital outputs":"4","external fault EXTF (red)":"Yes","internal fault INTF (red)":"Yes","Differential input voltage":"min. 0.5 V","For Signal \"1\" Rated Value":"0.5 A","Input voltage for signal \"0\"":"-30 to +5 V","Input voltage for signal \"1\"":"+11 to +30V","Diagnostic information readable":"Yes","from backplane bus 5 V DC, max.":"450 mA","Incremental encoder (symmetrical)":"Yes; With 2 pulse trains offset by 90°","Incremental encoder (asymmetrical)":"Yes","Input current for signal \"1\", typ.":"9 mA","permissible range, lower limit (DC)":"20.4 V; Dynamic 18.5 V","permissible range, upper limit (DC)":"28.8 V; dynamic 30.2 V","Between The Channels And Backplane Bus":"Yes; Optocoupler","Status indicator digital input (green)":"Yes","Status indicator digital output (green)":"Yes","from load voltage 1L+ (without load), max.":"40 mA","Limitation of inductive shutdown voltage to":"2L+ (-39 V)","Input frequency (with a time delay of 0.1 ms), max.":"200 kHz","for signal \"1\" permissible range for 0 to 60 °C, max.":"0.6 A","for signal \"1\" permissible range for 0 to 60 °C, min.":"5 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$217.17","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/711b094c9c97ca3b6266cd00546d81ed.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=40095&mlfb=6ES7450-1AP00-0AE0"},"ai":{"faq":[{"question":"Where can I buy 6ES7450-1AP00-0AE0 and get a price?","answer":"We source this module to order against an RFQ."},{"question":"What is the 5 V supply rating on the 6ES7450-1AP00-0AE0?","answer":"The module provides a regulated 5.2 V ±2 % output for powering the incremental encoder, rated up to 300 mA total."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7450-1AP00-0AE0","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/6ES7450-1AP00-0AE0 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}}