{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7288-1SR40-0AA1","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7288-1SR40-0AA1","canonicalUrl":"https://aoctrl.com/siemens/6ES7288-1SR40-0AA1","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7288-1SR40-0AA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-1200, CPU 1214C, 6ES7288-1SR40-0AA1, 24 kbyte program memory, 144 byte inputs/outputs, PID control, -40 to 70 °C, CE.","salesMarkdown":"## CPU spec at a glance The Siemens 6ES7288-1SR40-0AA1 is a SIMATIC S7-1200 CPU with 24 kbyte program memory, 144 bytes each for inputs and outputs (256 bits of digital plus 56 words of analog on each side). It supports LAD, FBD, and STL programming languages, plus a hardware clock with no battery backup — the RTC holds for 7 days without power. With 24 kbyte of program memory and support for up to 8 PID loops, it handles a moderate machine cell — conveyors, packaging stations, or a small batch process — without needing a larger controller. The built-in RS-485 port (max 187.5 kbps) and PROFINET interface with autonegotiation let it talk to drives, HMIs, and remote I/O without an extra comm module. High-speed counters are parameterizable: four single-phase at 200 kHz and two at 30 kHz, or four A/B phase at 100 kHz and two at 20 kHz — enough for encoder feedback on a servo axis or flowmeter pulse input.","metaTitle":"Siemens 6ES7288-1SR40-0AA1 SIMATIC S7-1200 CPU, 24 kbyte, -4","metaDescription":"Siemens 6ES7288-1SR40-0AA1 SIMATIC S7-1200 CPU with 24 kbyte program memory, 144 byte I/O, PID control, RS-485, PROFINET, CE marked. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["DIN Rail Power Supplies"],"specifications":{"FBD":"Yes","LAD":"Yes","RAM":"Yes","STL":"Yes","Max.":"70 °C","Min.":"-40 °C","Type":"Hardware clock, no battery backup","Depth":"81 mm","Flash":"Yes","Width":"125 mm","title":"6ES7288-1SR40-0AA1","Height":"100 mm","Inputs":"144 byte; 256 bit of digital inputs & 56 words of analog inputs","RS 485":"Yes","TCP/IP":"Yes","CE mark":"Yes","Forcing":"Yes","Outputs":"144 byte; 256 bit of digital outputs & 56 words of analog outputs","Present":"Yes; Maintenance free, RTC requires 7 days.","120 V AC":"Yes","230 V AC":"Yes","Isolated":"Yes; Transformer isolated, 1,500V AC","PROFIBUS":"Yes; Via CM DP module","As Client":"Yes","As Server":"Yes","Supported":"Yes","Backup time":"7 d","Memory size":"24 kbyte; Program memory","description":"SIMATIC S7-200 SMART, CPU SR40, CPU, AC/DC/relay, onboard I/O: 24 DI 24 V DC; 16 DQ relay 2 A; power supply: AC 85 - 264 V AC at 47-63 Hz program/data memory 40 KB web server support","Autocrossing":"Yes","Inputs, max.":"128 byte; Per device","Outputs, max.":"128 byte; Per device","Rail mounting":"Yes; Standard - DIN rail","Updating time":"4 ms; The minimum value of the update time also depends on the communication component set for PROFINET IO, on the number of IO devices and the quantity of configured user data.","For Signal \"0\"":"5 V DC at 1 mA","For Signal \"1\"":"15 V DC at 2.5 mA","Interface type":"RS 485 (max. 187.5 kbps)","PID controller":"Yes; PID closed-loop control function: Continuous controller outputs, binary controller outputs, automatic/manual mode, max. 8 loops","Shielded, Max.":"500 m","Type of memory":"DDR","Autonegotiation":"Yes","Parameterizable":"Yes; 6 Single phase: 4 HSCs at 200 kHz; 2 HSCs at 30 kHz 4 A/B phase: 2 HSCs at 100 kHz; 2 HSCs at 20 kHz","Weight, approx.":"441.3 g","lifecycle_stage":"current","\"0\" To \"1\", Max.":"10 ms; max.","\"1\" To \"0\", Max.":"10 ms; max.","Power loss, max.":"23 W","RJ 45 (Ethernet)":"Yes","Rated value (DC)":"24 V","S7 communication":"Yes","Unshielded, Max.":"150 m","Fall height, max.":"0.3 m; five times, in product package","Micro Memory Card":"Yes; microSDHC Card (optional)","Source/sink input":"Yes","Number of counters":"6","On Lamp Load, Max.":"30 W; 30 W with DC, 200 W with AC","PROFINET IO Device":"Yes; I-Device since V2.5","up to 40 °C, max.":"24","At \"0\" To \"1\", Max.":"12.8 ms","At \"0\" To \"1\", Min.":"0.2 ms","Programming package":"STEP 7 Micro/WIN SMART","Between The Channels":"No","Current output, max.":"300 mA; 24 V DC Sensor Power","For Signal \"1\", Typ.":"4 mA","Inrush current, max.":"16.3 A; at 264 V","PROFINET IO Controller":"Yes; Since V2.4","Deviation per day, max.":"120 s; within 120s/month at 25 °C","Number of pulse outputs":"3","Number of relay outputs":"16","Status/control variable":"Yes","Storage/transport, max.":"1 080 hPa","Storage/transport, min.":"660 hPa","Transmission rate, max.":"100 Mbit/s","For Bit Operations, Typ.":"150 ns; / instruction","Number of digital inputs":"24; Integrated","Current consumption, max.":"300 mA; At 120 V AC","For Word Operations, Typ.":"1.2 µs; / instruction","Number of digital outputs":"16; Relays","With Resistive Load, Max.":"2 A","Hardware clock (real-time)":"Yes","Installation altitude, max.":"2 000 m","Installation altitude, min.":"-1 000 m","Number of RS 485 interfaces":"1","Vertical Installation, Max.":"50 °C","Vertical Installation, Min.":"-20 °C","Horizontal Installation, Max.":"60 °C","Horizontal Installation, Min.":"-20 °C","Test voltage at air discharge":"8 kV","Memory available for user data":"16 kbyte","Permissible Range, Lower Limit":"47 Hz","Permissible Range, Upper Limit":"63 Hz","for backplane bus (5 V DC), max.":"1.4 A; max. 5 V DC for EM bus","Current consumption (rated value)":"190 mA; at 240 V AC","Supports protocol for PROFINET IO":"Yes; RT Controller (since FW V2.4) & I-Device (since FW V2.5)","Test voltage at contact discharge":"4 kV","Between The Channels, In Groups Of":"2","For Floating Point Arithmetic, Typ.":"3.6 µs; / instruction","permissible range, lower limit (AC)":"85 V","permissible range, upper limit (AC)":"264 V","Number of connectable IO Devices, max.":"8","Automatic Detection Of Transmission Rate":"Yes; 10/100 Mbit/s","Number of industrial Ethernet interfaces":"1","Limit class A, for use in industrial areas":"Yes; EN 61000-6-4, interference emission: Intended for use in industrial areas.","Operation at 25 °C without condensation, max.":"95 %","Of The Pulse Outputs, With Resistive Load, Max.":"1 Hz","Interference emission via line/AC current cables":"EN 61000-6-4, interference emission: Intended for use in industrial areas.","Of Which Inputs Usable For Technological Functions":"4; HSC (High Speed Counting)","For Signal \"0\", Max. (Permissible Quiescent Current)":"1 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$264.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/04011de0c16332e7a32550b3ee4bc388.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1522366&mlfb=6ES7288-1SR40-0AA1"},"ai":{"faq":[{"question":"What programming languages does the 6ES7288-1SR40-0AA1 support?","answer":"It supports LAD (ladder), FBD (function block diagram), and STL (statement list)."},{"question":"What is the operating temperature range?","answer":"The CPU is rated for -40 °C to 70 °C."},{"question":"Does it have a real-time clock?","answer":"Yes, a hardware clock with no battery backup; the RTC holds for 7 days without power."},{"question":"What communication interfaces are built in?","answer":"PROFINET with autonegotiation and an RS-485 port (max 187.5 kbps). PROFIBUS is supported via an optional CM DP module."},{"question":"What is the memory size?","answer":"24 kbyte program memory."},{"question":"How do I source this part?","answer":"It is sourced to order against an RFQ — no shelf stock, but available through the procurement channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7288-1SR40-0AA1","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/6ES7288-1SR40-0AA1 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}}