{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7412-2XG00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7412-2XG00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7412-2XG00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7412-2XG00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-400 CPU, 6ES7412-2XG00-0AB0, 244 byte I/O, 64 kB work memory, MPI/RS 485, STEP 7.","salesMarkdown":"## What this CPU brings to a rack The Siemens 6ES7412-2XG00-0AB0 is an S7-400 CPU with 244 byte inputs and 244 byte outputs, 64 kB work memory, and a 1 ms resolution timer. It supports MPI, RS 485, and STEP 7 programming in LAD, FBD, STL, SCL, GRAPH, HiGraph, and CFC. The CPU handles up to 16 overall connections (one reserved for PG/OP), with 10 via CP and 16 via CP LAN or PtP. Forcing, routing, and SYNC/FREEZE are built in. The FM function block capacity is 16, limited by slots and connections. ## Memory and retentivity Work memory maxes at 64 kbyte. The preset retentivity is none — no retentivity by default. Adjustable retentivity is available if the application needs it. The CPU is not expandable, so the 64 kB is the ceiling. ## Communication and connectivity Two integrated interfaces: MPI and RS 485. MPI supports routing. RS 485 is isolated. The CPU can act as both client and server. For PtP and LAN connections, use a CP — up to 16 each, limited by slots. Via IM 467 you get 4 additional connections. The overall connection limit is 16, one reserved for PG/OP.","metaTitle":"Siemens 6ES7412-2XG00-0AB0 S7-400 CPU, 244 byte I/O, 64 kB","metaDescription":"Siemens 6ES7412-2XG00-0AB0 S7-400 CPU with 244 byte inputs/outputs, 64 kB work memory, MPI, RS 485, STEP 7 support. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"FM":"16; Limited by number of slots and number of connections","CFC":"Yes","FBD":"Yes","LAD":"Yes","MPI":"Yes","SCL":"Yes","STL":"Yes","Type":"SFB","Depth":"219 mm","GRAPH":"Yes","Width":"25 mm","Height":"290 mm","Inputs":"244 byte","Number":"8","Preset":"No retentivity","RS 485":"Yes","STEP 7":"Yes","via CP":"10","CP, LAN":"16; limited by number of slots and number of connections; for S5-compatible communication max. 4","CP, PtP":"16; limited by number of slots","Forcing":"Yes","Outputs":"244 byte","Overall":"16; of which one is reserved for PG and OP","Present":"Yes","Routing":"Yes","Isolated":"Yes","As Client":"Yes","As Server":"Yes","HiGraph®":"Yes","Supported":"Yes; Via CP and loadable FB","Adjustable":"Yes","Expandable":"No","Integrated":"2","Resolution":"1 ms","Size, max.":"64 kbyte","via IM 467":"4","Lower Limit":"10 ms","SYNC/FREEZE":"Yes","Single step":"Yes","Slots, max.":"244","Upper Limit":"9 990 s","Equidistance":"Yes","Inputs, max.":"244 byte","Number, max.":"4 kbyte","Status block":"Yes","With Battery":"Yes; all data","in AS, slave":"Yes","to DP, slave":"Yes","Outputs, max.":"244 byte","in AS, master":"Yes","to DP, master":"Yes","to MPI, slave":"Yes","Alarm 8-blocks":"Yes","Interface type":"PROFIBUS DP","Multicomputing":"Yes; 4 CPUs max. (with UR1 or UR2)","Nesting levels":"8","Per Slot, Max.":"128 byte","Program alarms":"Yes","Required Slots":"1","Type of memory":"RAM","expandable RAM":"Yes; with Memory Card (RAM)","to MPI, master":"Yes","Inputs, default":"128 byte","Weight, approx.":"720 g","Without Battery":"No","connectable OPs":"16 without message processing, 8 with message processing","lifecycle_stage":"mature","Isochronous mode":"Yes","Of Which Central":"2 048","Outputs, default":"128 byte","Power loss, typ.":"7.5 W","Rated value (DC)":"Power supply via system power supply","S7 communication":"Yes","PROFIBUS DP slave":"Yes","expandable FEPROM":"Yes; with Memory Card (FLASH)","Address area, max.":"32","Inputs, adjustable":"4 kbyte; adjustable at the expense of the code area of the RAM","PROFIBUS DP master":"Yes","Per Priority Class":"24","Retentivity preset":"MB 0 to MB 15","Outputs, adjustable":"4 kbyte; adjustable at the expense of the code area of the RAM","PG/OP communication":"Yes","Backup current, max.":"320 µA","Backup current, typ.":"40 µA","Reserved For Routing":"0","Shortest Clock Pulse":"5 ms; 2.5 ms without using the SFCs 126 / 127","Via Interface Module":"0","expandable RAM, max.":"64 Mbyte","integrated RAM, max.":"256 kbyte","Consistent Data, Max.":"244 byte","Integrated (For Data)":"72 kbyte","Number of breakpoints":"4","Number of connections":"16","Retentivity available":"Yes; From MB 0 to MB 4 095","S7 basic communication":"No","Number of entries, max.":"400","Status/control variable":"Yes","Symbol-related messages":"Yes","Transmission rate, max.":"12 Mbit/s","User data per job, max.":"8 kbyte","expandable FEPROM, max.":"64 Mbyte","For Bit Operations, Typ.":"0.2 µs","Integrated (For Program)":"72 kbyte","Number of clock memories":"8; 1 memory byte","Number of time alarm OBs":"2","Process control messages":"Yes","Size of GD packets, max.":"64 byte","For Word Operations, Typ.":"0.2 µs","Global data communication":"No","Number of DP slaves, max.":"64","Number of delay alarm OBs":"2","Of Which Consistent, Max.":"32 byte","PROFIBUS and Ethernet CPs":"14; incl. CP 443-5 Ext. and IM 467","Point-to-point connection":"No","Hardware clock (real-time)":"Yes","Number of connections, max.":"16","Number of process alarm OBs":"2","Adjustable For Routing, Max.":"0","Mixed mode IM + CP permitted":"No; IM 467 cannot be used jointly with CP 443-5 Ext.","Retentive And Synchronizable":"Yes","Retentive Data Area In Total":"Total working and load memory (with backup battery)","additional within an error OB":"2","reserved for OP communication":"1","reserved for PG communication":"1","reserved for S7 communication":"0","Number of connection resources":"16","Number of cyclic interrupt OBs":"2","Number of expansion units, max.":"21; of which 6 ER with K-bus","from backplane bus 5 V DC, max.":"1.6 A","from backplane bus 5 V DC, typ.":"1.5 A","For Fixed Point Arithmetic, Typ.":"0.2 µs","User data per address area, max.":"32 byte","from backplane bus 24 V DC, max.":"300 mA; Total current consumption of the components connected to the MPI/DP interfaces, but no more than 150 mA per interface","Number of subprocess images, max.":"8","For Floating Point Arithmetic, Typ.":"0.6 µs","Number of connectable IM 460s, max.":"6","Number of connectable IM 463s, max.":"3; IM 463-2","reserved for S7 basic communication":"0","Activation/deactivation of DP slaves":"Yes","CiR synchronization time, basic load":"100 ms","Number of GD packets, receiver, max.":"16","User data per isochronous slave, max.":"128 byte","adjustable for OP communication, max.":"0","adjustable for PG communication, max.":"0","adjustable for S7 communication, max.":"0","Number of GD packets, transmitter, max.":"8","Number of connectable IMs (total), max.":"6","Feeding of external backup voltage to CPU":"5 V DC to 15 V DC","CiR synchronization time, time per I/O byte":"120 µs","User program protection/password protection":"Yes","adjustable for S7 basic communication, max.":"0","Direct data exchange (slave-to-slave communication)":"Yes","Number of login stations for message functions, max.":"8","Number of pluggable S5 modules (via adapter capsule in central device), max.":"6"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$777.77 – $1,829.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=443209&mlfb=6ES7412-2XG00-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7412-2XG00-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What is the FM capacity of 6ES7412-2XG00-0AB0?","answer":"The FM capacity is 16, limited by the number of slots and number of connections."},{"question":"Does 6ES7412-2XG00-0AB0 support CFC?","answer":"Yes, CFC is supported."},{"question":"What are the key I/O and memory specs?","answer":"244 byte inputs, 244 byte outputs, 64 kB work memory, 1 ms resolution timer."},{"question":"What communication interfaces does this CPU have?","answer":"MPI and RS 485, both isolated. MPI supports routing. The CPU can be client or server."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7412-2XG00-0AB0","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/6ES7412-2XG00-0AB0 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}}