{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7288-1CR40-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7288-1CR40-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7288-1CR40-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7288-1CR40-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-200 SMART CPU, 6ES7288-1CR40-0AA0, AC-powered (120/230 V AC), 12 KB program memory, 32-byte digital I/O, RS485, PID control.","salesMarkdown":"The Siemens 6ES7288-1CR40-0AA0 is an S7-200 SMART CPU with a 120/230 V AC supply, 12 kbyte program memory, and 32-byte digital I/O map. It supports LAD, FBD, and STL programming, includes a real-time clock with 7-day backup, and runs up to 8 PID loops. The RS485 port (max 187.5 kbps) handles Modbus RTU or USS drives, and the Ethernet port supports TCP/IP with auto-negotiation and autocrossing. ## Supply and I/O fit Rated 24 V DC for the logic supply, but the main power input accepts 120 V AC or 230 V AC — transformer-isolated at 1,500 V AC. That makes it a direct fit for panels with an existing control transformer, no separate 24 V DC supply needed for the CPU itself. The 32-byte input and 32-byte output maps are fixed; forcing is supported for commissioning. Digital input thresholds: signal '0' below 5 V DC, signal '1' from +15 to +30 V DC. That's standard 24 V DC sinking logic — compatible with most three-wire sensors and pushbuttons without level shifting.","metaTitle":"Siemens 6ES7288-1CR40-0AA0 S7-200 SMART CPU, 120/230 V AC, 1","metaDescription":"Siemens 6ES7288-1CR40-0AA0 S7-200 SMART CPU with 12 KB program memory, 32 digital I/O bytes, RS485, PID, and AC supply. Active production, CE marked. Source via 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":"6ES7288-1CR40-0AA0","Height":"100 mm","Inputs":"32 byte; Digital inputs","TCP/IP":"Yes","CE mark":"Yes","Forcing":"Yes","Outputs":"32 byte; Digital outputs","120 V AC":"Yes","230 V AC":"Yes","Isolated":"Yes; Transformer isolated, 1,500V AC","PROFIBUS":"No","As Client":"Yes","As Server":"Yes","Supported":"Yes","Backup time":"7 d","Memory size":"12 kbyte; Program memory","description":"SIMATIC S7-200 SMART, CPU CR40, compact CPU, AC/DC/relay, onboard I/O: 24 DI 24 V DC; 16 DO relay 2A; Power supply: AC 85-264 V AC at 47-63 Hz, Program/data memory 20 KB","Autocrossing":"Yes","Rail mounting":"Yes; Standard - DIN rail","For Signal \"0\"":"< 5 V DC","For Signal \"1\"":"+15 to +30 V","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","Weight, approx.":"440 g","lifecycle_stage":"current","Power loss, max.":"18 W","RJ 45 (Ethernet)":"Yes","Rated value (DC)":"24 V","Unshielded, Max.":"150 m","Fall height, max.":"0.3 m; five times, in product package","Micro Memory Card":"Yes; microSDHC Card (optional)","Number of counters":"4; 4 at 100 kHz single phase or 2 at 50 kHz A/B phase","On Lamp Load, Max.":"30 W; 30 W with DC, 200 W with AC","Programming package":"STEP 7 Micro/WIN SMART","Current output, max.":"300 mA; 24 V DC Sensor Power","For Signal \"1\", Typ.":"4 mA","Inrush current, max.":"7.3 A; at 264 V","Type of input voltage":"DC","Deviation per day, max.":"4 s; within 120s/month at 25 °C","IP degree of protection":"IP20","Number of relay outputs":"16","Storage/transport, max.":"1 080 hPa","Storage/transport, min.":"660 hPa","For Bit Operations, Typ.":"150 ns; / instruction","Number of digital inputs":"24","Current consumption, max.":"250 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.":"45 °C","Vertical Installation, Min.":"0 °C","Horizontal Installation, Max.":"55 °C","Horizontal Installation, Min.":"0 °C","Test voltage at air discharge":"8 kV","Memory available for user data":"8 kbyte","Permissible Range, Lower Limit":"47 Hz","Permissible Range, Upper Limit":"63 Hz","Current consumption (rated value)":"150 mA; at 240 V AC","Supports protocol for PROFINET IO":"Yes","Test voltage at contact discharge":"4 kV","For Floating Point Arithmetic, Typ.":"3.6 µs; / instruction","permissible range, lower limit (AC)":"85 V","permissible range, upper limit (AC)":"264 V","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 %","Interference emission via line/AC current cables":"EN 61000-6-4, interference emission: Intended for use in industrial areas."}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$299.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0d901b5fb425305d923b3b3ff1b67319.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=192158&mlfb=6ES7288-1CR40-0AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7288-1CR40-0AA0","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/6ES7288-1CR40-0AA0 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}}