{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7412-2XJ05-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7412-2XJ05-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7412-2XJ05-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7412-2XJ05-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-400 CPU 412-2, order code 6ES7412-2XJ05-0AB0, 244 byte inputs/outputs, isolated, cULus, CE, ATEX II 3G.","salesMarkdown":"The Siemens 6ES7412-2XJ05-0AB0 is a CPU 412-2 module for the S7-400 rack. It provides 244 bytes each of process input and output image, isolated from the backplane, and supports a wide range of programming languages: CFC, FBD, LAD, SCL, STL, and GRAPH. Communication is via MPI, RS 485, and PROFIBUS DPV1. The module is 25 mm wide, 290 mm high, 219 mm deep, and operates from 0 °C to 60 °C. The 244-byte input and output image determines how many discrete or analog channels the CPU can map without external expansion — enough for a medium-sized machine cell. Isolation means the logic side is galvanically separated from the I/O bus, protecting against ground loops and transient faults on field wiring. The ATEX II 3G Ex nA IIC T4 Gc certification permits installation in Zone 2 gas environments (non-sparking, T4 temperature class). cULus and CE mark cover North American and European regulatory acceptance. No lifecycle status is on record for this order code. For compliance documentation, the CE mark and cULus listing are confirmed; RoHS/REACH declarations are not in the evidence and should be requested at time of order. ## Integration constraints The FM (function module) limit is stated as 'Limited by number of slots and number of connections' — this is not a hard count but a physical and connection-based ceiling. CP 440 and CP 441 PtP modules are similarly slot-limited. For PROFIBUS DP, the RDREC and WRREC SFBs are limited to 8 per interface, with a total of 32 across all external interfaces. The SFC 103 is limited to 1 per interface. No mixed operation of CP443-1 EX40 with EX41/EX20/GX20 is allowed; max 4 CPs in the central controller.","metaTitle":"Siemens 6ES7412-2XJ05-0AB0 CPU 412-2, 244 byte I/O, isolated","metaDescription":"Siemens 6ES7412-2XJ05-0AB0 CPU 412-2 for S7-400. 244 byte inputs/outputs, isolated, cULus, CE, ATEX II 3G. Supports CFC, FBD, LAD, SCL, STL, GRAPH, MPI, RS 485, DPV1. Sourced to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"FM":"Limited by number of slots and number of connections","CFC":"Yes","FBD":"Yes","LAD":"Yes","MPI":"Yes","SCL":"Yes","STL":"Yes","ATEX":"ATEX II 3G Ex nA IIC T4 Gc","DPV1":"Yes","Max.":"60 °C","Min.":"0 °C","Type":"SFB","Depth":"219 mm","GRAPH":"Yes","RDREC":"8; SFB 52; per interface, but not more than 32 across all external interfaces","WRREC":"8; SFB 53; per interface, but not more than 32 across all external interfaces","Width":"25 mm","cULus":"Yes","Height":"290 mm","Inputs":"244 byte","Number":"16","Preset":"120","RD_REC":"8; SFC 59; per interface","RS 485":"Yes","STEP 7":"Yes","WR_REC":"8; SFC 58; per interface","via CP":"4; No mixed operation of CP443-1 EX40 and CP443-1 EX 41/EX20/GX20, max. 4 in central controller","CE mark":"Yes","CP, PtP":"CP 440: Limited by number of slots; CP 441: Limited by number of slots and number of connections","Forcing":"Yes","Outputs":"244 byte","Overall":"32","Present":"Yes","RDSYSST":"8","Routing":"Yes","WR_PARM":"8; SFC 55; per interface","DPNRM_DG":"8; SFC 13; per interface","DP_TOPOL":"1; SFC 103; per interface","GSD file":"http://support.automation.siemens.com/WW/view/en/113652","Isolated":"Yes","PARM_MOD":"1; SFC 57; per interface","WR_DPARM":"2; SFC 56; per interface","As Client":"Yes","As Server":"Yes","HiGraph®":"Yes","MPI, max.":"200 ms","Retentive":"Yes","Supported":"Yes; Via CP and loadable FB","Variables":"Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters","Adjustable":"Yes","Expandable":"No","Integrated":"0","Max. Cycle":"32 ms","Resolution":"1 ms","S7 routing":"Yes","Size, max.":"4 kbyte; Size of bit memory address area","via IM 467":"4","Command set":"see instruction list","FM approval":"Yes","Granularity":"1 h","KC approval":"Yes","Lower Limit":"10 ms","SYNC/FREEZE":"Yes","Single step":"Yes","Slots, max.":"244","UL approval":"Yes","Upper Limit":"9 990 s","CSA approval":"Yes","Equidistance":"Yes","Inputs, max.":"244 byte","Number, max.":"see instruction list","Preset, Max.":"150","Status block":"Yes; Up to 2 simultaneously","With Battery":"Yes; all data","in AS, slave":"Yes","to DP, slave":"Yes","Outputs, max.":"244 byte","Overall, Max.":"256","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":"7","Per Slot, Max.":"128 byte","Program alarms":"Yes","Required Slots":"1","SCAN procedure":"Yes","Type of memory":"RAM","expandable RAM":"Yes; with Memory Card (RAM)","to MPI, master":"Yes","Can Be Read Out":"Yes","Inputs, default":"128 byte","Range of values":"SFCs 2, 3 and 4: 0 to 32767 hours SFC 101: 0 to 2^31 - 1 hours","Weight, approx.":"700 g","Without Battery":"No","connectable OPs":"31","lifecycle_stage":"mature","Adjustable, Max.":"8 kbyte","Firmware version":"V5.3","Isochronous mode":"Yes","Of Which Central":"2 048","Outputs, default":"128 byte","Power loss, max.":"5 W","Power loss, typ.":"4.5 W","Rated value (DC)":"Power supply via system power supply","S7 communication":"Yes","Backup time, max.":"See reference manual, module data, Chapter 3.3","Data length, max.":"1 452 bytes via CP 443-1 Adv.","Optical interface":"No","PROFIBUS DP slave":"Yes","expandable FEPROM":"Yes; with Memory Card (FLASH)","Address area, max.":"32","Forcing, variables":"Inputs, outputs, bit memories, peripheral inputs, peripheral outputs","Inputs, adjustable":"4 kbyte","PROFIBUS DP master":"Yes","Per Priority Class":"24","Retentivity preset":"MB 0 to MB 15","Usable For Routing":"15","Data record routing":"Yes","Interfaces/bus type":"1 x MPI/PROFIBUS DP, 1 x PROFIBUS DP","Number/Number range":"0 to 15","Outputs, adjustable":"4 kbyte","PG/OP communication":"Yes","Programming package":"STEP 7 V5.3 SP2 or higher with HW update","on Ethernet via NTP":"No; Via CP","Backup current, max.":"550 µA","Backup current, typ.":"125 µA; up to 40 °C","HW functional status":"03","ISO-on-TCP (RFC1006)":"Via CP 443-1 and loadable FB","In 100 Ms Grid, Max.":"0","In 500 Ms Grid, Max.":"256","Reserved For Routing":"0","Shortest Clock Pulse":"1.5 ms; 0.5 ms without use of SFC 126, 127","Via Interface Module":"0","expandable RAM, max.":"64 Mbyte","integrated RAM, max.":"512 kbyte","Consistent Data, Max.":"244 byte","EAC (formerly Gost-R)":"Yes","In 1000 Ms Grid, Max.":"256","Integrated (For Data)":"256 kbyte","Number of breakpoints":"4","Number of connections":"16","Number of startup OBs":"3; OB 100-102","RCM (formerly C-TICK)":"Yes","Retentivity available":"Yes","S7 basic communication":"Yes","System functions (SFC)":"see instruction list","With 100 Ms Grid, Max.":"0","Integrated power supply":"No","Number of entries, max.":"400","Status/control variable":"Yes; Up to 16 variable tables","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.":"75 ns","Integrated (For Program)":"256 kbyte","Number of DPV1 alarm OBs":"3; OB 55-57","Number of GD loops, max.":"8","Number of background OBs":"1; OB 90","Number of clock memories":"8; in 1 memory byte","Number of free cycle OBs":"1; OB 1","Number of time alarm OBs":"2; OB 10, 11","Process control messages":"Yes","Size of GD packets, max.":"54 byte","For Word Operations, Typ.":"75 ns","Global data communication":"No","Number of DP slaves, max.":"64","Number of delay alarm OBs":"2; OB 20, 21","Number of variables, max.":"64","Of Which Consistent, Max.":"32 byte","PROFIBUS and Ethernet CPs":"14; Of which 10 CPs max. or IMs as DP master, 4 PROFINET controller maximum","Automatic Baud Rate Search":"No","Hardware clock (real-time)":"Yes","Number of RS 485 interfaces":"2; Combined MPI / PROFIBUS DP and PROFIBUS DP","Number of connections, max.":"16","Number of process alarm OBs":"2; OB 40, 41","Process diagnostic messages":"Yes","S7 communication, as client":"Yes","S7 communication, as server":"Yes","from interface 5 V DC, max.":"90 mA; At each DP interface","usable for OP communication":"31","usable for PG communication":"31","usable for S7 communication":"30","Adjustable For Routing, Max.":"0","Mixed mode IM + CP permitted":"No; IM 467 not suitable for use with CP 443-5 Ext. and CP 443-1 EX4x, EX20, GX20 (in PROFINET IO mode)","Number of multicomputing OBs":"1; OB 60","Retentive And Synchronizable":"Yes","System function blocks (SFB)":"see instruction list","User data per DP slave, max.":"244 byte","With 500, 1000 Ms Grid, Max.":"1","additional within an error OB":"1","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; OB 32, 35 (shortest cycle that can be set = 500 µs)","Number of isochronous mode OBs":"2; OB 61-62","Number of expansion units, max.":"21","Number of synchronous error OBs":"2; OB 121, 122","from backplane bus 5 V DC, max.":"1.1 A","from backplane bus 5 V DC, typ.":"0.9 A","For Fixed Point Arithmetic, Typ.":"75 ns","Number of asynchronous error OBs":"9; OB 80-88","User data per address area, max.":"32 byte","from backplane bus 24 V DC, max.":"300 mA; 150 mA per DP interface","Number of subprocess images, max.":"15","usable for S7 basic communication":"30","Deviation per day (buffered), max.":"1.7 s; Power off","For Floating Point Arithmetic, Typ.":"225 ns","Number of connectable IM 460s, max.":"6","Number of connectable IM 463s, max.":"4; IM 463-2","reserved for S7 basic communication":"0","Activation/deactivation of DP slaves":"Yes","CiR synchronization time, basic load":"100 ms","Deviation per day (unbuffered), max.":"8.6 s; For power On","Number of GD packets, receiver, max.":"16","Output current of the interface, max.":"150 mA","User data per isochronous slave, max.":"244 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","Number of DP masters with isochronous mode":"2","simultaneously active Alarm-S blocks, max.":"250; Simultaneously active alarm_S/SQ blocks or alarm_D/DQ blocks","CiR synchronization time, time per I/O byte":"30 µs","User program protection/password protection":"Yes","adjustable for S7 basic communication, max.":"0","Size of GD packet (of which consistent), max.":"1 variable","User data per job (of which consistent), max.":"240 byte","Number of connectable OPs with message processing":"31; When using Alarm_S/SQ and Alarm_D/DQ","Direct data exchange (slave-to-slave communication)":"Yes","Number of connectable OPs without message processing":"31","Number of login stations for message functions, max.":"31; Max. 31 with Alarm_S/SQ and Alarm_D/DQ (OPs); max. 8 with Alarm_8 and Alarm_P (e.g. WinCC)","Retentive data area (incl. timers, counters, flags), max.":"Total working and load memory (with backup battery)","Number of simultaneous AG-SEND/AG-RECV orders per CPU, max.":"24/24","Number of instances for alarm 8 and S7 communication blocks, max.":"300","Number of archives that can log on simultaneously (SFB 37 AR_SEND)":"4","number of simultaneously active system functions (SFC) / with DPSYC_FR":"2; SFC 11; per interface","number of simultaneously active system functions (SFC) / with D_ACT_DP":"8; SFC 12; per interface","Number of pluggable S5 modules (via adapter capsule in central device), max.":"6"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,492.25 – $2,539.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dd88f31d42119e33f52676f4845b7340.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=108711&mlfb=6ES7412-2XJ05-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7412-2XJ05-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What are the limits for PROFIBUS DP communication?","answer":"RDREC and WRREC SFBs are limited to 8 per interface, with a total of 32 across all external interfaces. DP_TOPOL SFC 103 is limited to 1 per interface."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7412-2XJ05-0AB0","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/6ES7412-2XJ05-0AB0 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}}