{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7416-2FK04-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7416-2FK04-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7416-2FK04-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7416-2FK04-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-400 CPU 416-2, 6ES7416-2FK04-0AB0, 244 byte inputs/outputs, 25 mm width, 219 mm depth, 290 mm height, CFC/FBD/LAD/SCL/STL/GRAPH/HiGraph support.","salesMarkdown":"## CPU 416-2 for S7-400 racks The Siemens 6ES7416-2FK04-0AB0 is a CPU 416-2 module for the S7-400 platform, handling 244 byte inputs and 244 byte outputs across the backplane. It supports CFC, FBD, LAD, SCL, STL, GRAPH, and HiGraph programming languages, so it fits into existing STEP 7 projects without recompiling the logic blocks. The FM capacity is limited by the number of slots and the number of connections — meaning the CPU can address functional modules only up to what the rack physically holds and the communication load allows. For a 9-slot UR2 rack, that's typically 8 FM slots plus the CPU itself, but the connection limit bites first if you stack multiple CPs. Mounts on a standard S7-400 rack, 25 mm wide, 290 mm tall, 219 mm deep — single-width slot. ## Fieldbus and communication profile MPI is built in for programming and HMI links. For PROFIBUS DP, you need a CP 443-5 Extended in a free slot — the CPU supports up to 10 connections via that CP. RS 485 is on the MPI port, so a simple PROFIBUS cable connects to a DP slave network if you configure it as a DP master. Routing is supported, so you can reach the CPU through a CP or IE/PB link without direct MPI access. The GSD file for PROFIBUS integration is available at the Siemens PROFIBUS GSD repository. Point-to-point connections via CP 440 are limited by slot count; CP 441 connections are limited by the number of connections. LAN communication via CP is limited by the number of connections — plan your CP count before the BOM freeze. ## System functions and diagnostics Eight SFBs are available for system functions. The CPU supports 8 RDREC, 8 WRREC, 8, 8, 8 RDSYSST (1 to 8), 8, 8, 1, 1, and 2 calls — enough for a medium-sized distributed I/O configuration with redundant parameter assignment. Forcing is supported, which lets you override process image values during commissioning without modifying the logic. The CPU can act as both a DP client and server, so it can exchange data with other DP masters on the same bus. Isolated design means the CPU backplane bus is electrically isolated from the I/O and communication circuits — reduces ground-loop noise on long PROFIBUS runs.","metaTitle":"Siemens 6ES7416-2FK04-0AB0 CPU 416-2, 244 byte I/O, 25 mm","metaDescription":"Siemens 6ES7416-2FK04-0AB0 CPU 416-2 for S7-400. 244 byte I/O, 25 mm wide, supports CFC, FBD, LAD, SCL, STL, GRAPH, HiGraph. MPI, PROFIBUS via CP. Sourced to order.","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","Type":"SFB","Depth":"219 mm","GRAPH":"Yes","RDREC":"8","WRREC":"8","Width":"25 mm","Height":"290 mm","Inputs":"244 byte","Number":"8","Preset":"120","RD_REC":"8","RS 485":"Yes","STEP 7":"Yes","WR_REC":"8","via CP":"10; CP 443-5 Extended","CP, LAN":"limited by number of connections","CP, PtP":"CP 440: Limited by number of slots; CP 441: limited by number of connections","Forcing":"Yes","Outputs":"244 byte","Overall":"64","Present":"Yes","RDSYSST":"8; 1 to 8","Routing":"Yes","WR_PARM":"8","DPNRM_DG":"8","DP_TOPOL":"1","GSD file":"http://www.siemens.com/profibus-gsd","Isolated":"Yes","PARM_MOD":"1","WR_DPARM":"2","As Client":"Yes","As Server":"Yes","HiGraph®":"Yes","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":"2","Max. Cycle":"32 ms","Resolution":"1 ms","S7 routing":"Yes","Size, max.":"16 kbyte","via IM 467":"4","Command set":"see instruction list","Granularity":"1 h","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.":"see instruction list","Preset, Max.":"600","Status block":"Yes","With Battery":"Yes; all data","in AS, slave":"Yes","to DP, slave":"Yes","Outputs, max.":"244 byte","Overall, Max.":"1 024","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","expandable RAM":"Yes; with Memory Card (RAM)","to MPI, master":"Yes","Inputs, default":"512 byte","Range of values":"0 to 32767 hours","Weight, approx.":"720 g","Without Battery":"No","connectable OPs":"63 without message processing, 12 with message processing","lifecycle_stage":"mature","Adjustable, Max.":"32 kbyte","Firmware version":"V4.0","Isochronous mode":"Yes","Of Which Central":"8 192","Outputs, default":"512 byte","Power loss, typ.":"4.5 W","Rated value (DC)":"Power supply via system power supply","S7 communication":"Yes","Backup time, max.":"144 d","PROFIBUS DP slave":"Yes","expandable FEPROM":"Yes; with Memory Card (FLASH)","Address area, max.":"32","Forcing, variables":"Inputs/outputs, bit memories, distributed I/Os","Inputs, adjustable":"16 kbyte","PROFIBUS DP master":"Yes","Per Priority Class":"24","Retentivity preset":"MB 0 to MB 15","Number/Number range":"0 to 7","Outputs, adjustable":"16 kbyte","PG/OP communication":"Yes","Programming package":"STEP 7 V5.2 SP1 HF3 or higher with HW update","Backup current, max.":"1 539 µA","Backup current, typ.":"550 µA","In 100 Ms Grid, Max.":"128","In 500 Ms Grid, Max.":"512","Shortest Clock Pulse":"1 ms; 0.5 ms without use of SFC 126, 127","expandable RAM, max.":"64 Mbyte","integrated RAM, max.":"256 kbyte","Consistent Data, Max.":"244 byte","In 1000 Ms Grid, Max.":"1 024","Integrated (For Data)":"1 400 kbyte","Number of breakpoints":"4","Number of connections":"44","Retentivity available":"Yes; MB 0 to MB 16383","S7 basic communication":"Yes","System functions (SFC)":"see instruction list","With 100 Ms Grid, Max.":"1","Number of entries, max.":"3 200","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.":"0.04 µs","Integrated (For Program)":"1 400 kbyte","Number of GD loops, max.":"16","Number of clock memories":"8; 1 memory byte","Number of time alarm OBs":"8","Process control messages":"Yes","Size of GD packets, max.":"64 byte","For Word Operations, Typ.":"0.04 µs","Global data communication":"Yes","Number of DP slaves, max.":"125","Number of delay alarm OBs":"4","Number of variables, max.":"512","Of Which Consistent, Max.":"32 byte","PROFIBUS and Ethernet CPs":"14; incl. CP 443-5 Ext. and IM 467","Hardware clock (real-time)":"Yes","Number of connections, max.":"32; If a diagnostics repeater is used on the line, the number of connection resources on the line is reduced by 1","Number of process alarm OBs":"8","Mixed mode IM + CP permitted":"No; IM 467 cannot be used jointly with CP 443-5 Ext.","Number of multicomputing OBs":"1","Retentive And Synchronizable":"Yes","System function blocks (SFB)":"see instruction list","With 500, 1000 Ms Grid, Max.":"10","additional within an error OB":"2","reserved for OP communication":"1","reserved for PG communication":"1","Number of connection resources":"32","Number of cyclic interrupt OBs":"9","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.":"0.04 µs","User data per address area, max.":"32 byte","from backplane bus 24 V DC, max.":"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.":"15","Deviation per day (buffered), max.":"1.7 s; Power on","For Floating Point Arithmetic, Typ.":"0.12 µs","Number of connectable IM 460s, max.":"6","Number of connectable IM 463s, max.":"4; IM 463-2","Activation/deactivation of DP slaves":"Yes","CiR synchronization time, basic load":"100 ms","Deviation per day (unbuffered), max.":"8.6 s; Power off","Number of GD packets, receiver, max.":"32","Output current of the interface, max.":"150 mA","User data per isochronous slave, max.":"244 byte","Number of GD packets, transmitter, max.":"16","Number of connectable IMs (total), max.":"6","Feeding of external backup voltage to CPU":"5 V DC to 15 V DC","simultaneously active Alarm-S blocks, max.":"200; ALARM_S/SQ blocks or ALARM_D/DQ blocks","CiR synchronization time, time per I/O byte":"40 µs","User program protection/password protection":"Yes","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":"12","Direct data exchange (slave-to-slave communication)":"Yes","Number of connectable OPs without message processing":"63","Number of login stations for message functions, max.":"12","Retentive data area (incl. timers, counters, flags), max.":"Total working and load memory (with backup battery)","Number of instances for alarm 8 and S7 communication blocks, max.":"1 800","Number of archives that can log on simultaneously (SFB 37 AR_SEND)":"32","number of simultaneously active system functions (SFC) / with DPSYC_FR":"2","number of simultaneously active system functions (SFC) / with D_ACT_DP":"4","Number of pluggable S5 modules (via adapter capsule in central device), max.":"6"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,943.10","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=178232&mlfb=6ES7416-2FK04-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7416-2FK04-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Does this CPU support CFC?","answer":"Yes, CFC (Continuous Function Chart) is supported, along with FBD, LAD, SCL, STL, GRAPH, and HiGraph."},{"question":"What are the physical dimensions of this module?","answer":"The module is 25 mm wide, 290 mm tall, and 219 mm deep. It occupies a single slot on an S7-400 rack."},{"question":"Can this CPU be used as a PROFIBUS DP master?","answer":"Yes, with a CP 443-5 Extended in a free slot. The CPU supports up to 10 PROFIBUS connections via that CP. MPI is built in for direct programming access."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7416-2FK04-0AB0","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/6ES7416-2FK04-0AB0 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}}