{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1151-7AA20-7AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1151-7AA20-7AB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1151-7AA20-7AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1151-7AA20-7AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIPLUS ET 200S, DP master module SFB, 6AG1151-7AA20-7AB0, Profibus DP V1, supports FBD, LAD, STL, -25…70°C, 60×119.5×75 mm.","salesMarkdown":"The 6AG1151-7AA20-7AB0 is a SIPLUS DP master module (type SFB) for the ET 200S distributed I/O system. It handles Profibus DP V1 communication with an RS485 isolated interface, supporting routing and SYNCFREEZE. This means it acts as the bus master for up to 12 DP slaves, with 244 bytes each of input and output data — enough for a medium-sized drop. Programming language support is a key differentiator: FBD, LAD, and STL are standard; SCL and GRAPH are available as optional add-ons. That flexibility means it can be integrated into plants with mixed engineering toolchains — whether your team uses Ladder for simple logic or STL for complex sequences, this module accepts all three without firmware changes. ## Real-world fit and constraints Physical dimensions: 60 mm wide, 119.5 mm high, 75 mm deep — the standard ET 200S module footprint. It occupies one slot on the terminal module; rail clearance matches the ET 200S system. Backup time for retentive data is 6 weeks at 40 °C typical; after a power failure with battery flat, the module requires a restart to reinstate retentive variables. No MPI support; communication is via Profibus DP RS485 isolated interface. Routing is supported; client mode is not.","metaTitle":"Siemens 6AG1151-7AA20-7AB0 SIPLUS DP Master, FBD/LAD/STL","metaDescription":"SIPLUS DP master module for ET 200S, Profibus DP V1. Supports FBD, LAD, STL; optional SCL/GRAPH. -25 to 70°C ambient. 96 kB memory. Backup 6 weeks at 40°C. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"FBD":"Yes","LAD":"Yes","MPI":"No","SCL":"Yes; Optional","STL":"Yes","DPV1":"Yes","Max.":"70 °C; = Tmax","Min.":"-25 °C; = Tmin","Type":"SFB","Depth":"75 mm","GRAPH":"Yes; Optional","Width":"60 mm; DP master module: 35 mm","title":"6AG1151-7AA20-7AB0","Height":"119.5 mm","Inputs":"244 byte","Number":"1","Preset":"150 ms","STEP 7":"Yes","CE mark":"Yes","Forcing":"Yes","Outputs":"244 byte","Overall":"12","Physics":"RS 485","Present":"Yes","Routing":"Yes","GSD file":"http://www.siemens.com/profibus-gsd","Isolated":"Yes","As Client":"No","As Server":"Yes","Retentive":"Yes; Must be restarted at each restart","Supported":"No","Variables":"Inputs, outputs, memory bits, DB, times, counters","Adjustable":"Yes","Expandable":"No","Integrated":"96 kbyte; For program and data","Size, max.":"16 kbyte","Backup time":"6 wk; At 40 °C ambient temperature, typically","Command set":"see instruction list","Granularity":"1 h","Lower Limit":"1 ms","SYNC/FREEZE":"Yes","Single step":"Yes","Upper Limit":"6 000 ms","description":"***Spare part*** SIPLUS ET 200S IM 151-7 CPU -25...+70°C based on 6ES7151-7AA20-0AB0","Equidistance":"Yes","Inputs, max.":"244 byte","Number, max.":"256 byte","Status block":"Yes","in AS, slave":"No","Outputs, max.":"244 byte","Plug-in (MMC)":"Yes","in AS, master":"No","to MPI, slave":"Yes","Interface type":"External interface via master module 6ES7138-4HA00-0AB0","Nesting levels":"8","to MPI, master":"Yes","Range of values":"0 to 2^31 hours (when using SFC 101)","Weight, approx.":"200 g; DP master module: Approx. 100 g","lifecycle_stage":"current","Firmware version":"V2.6","Of Which Central":"124","Power loss, typ.":"3.3 W","Rated value (DC)":"24 V","S7 communication":"Yes","PROFIBUS DP slave":"Yes; active / passive","Address area, max.":"32","Forcing, variables":"Inputs, outputs","PROFIBUS DP master":"Yes","Per Priority Class":"8","Retentivity preset":"MB 0 to MB 15","Usable For Routing":"4; As slave only with active interface, with IM 151-7 CPU as DP master","Configuration rules":"max. 63 peripheral modules per station; station width < 1 m or < 2 m; max. 10 A per load group (power module); master interface module on right next to IM 151-7 CPU (X2 interface)","Interfaces/bus type":"1 x MPI/PROFIBUS DP","Number/Number range":"0","PG/OP communication":"Yes","Plug-in (MMC), max.":"8 Mbyte","Programming package":"STEP 7 V5.2 + SP1 or higher with HW update","HW functional status":"01","Isolation tested with":"500 V DC","Number of breakpoints":"2","Number of connections":"12; Notice: 12 connections per CPU, not per interface","Number of startup OBs":"1; OB 100","S7 basic communication":"Yes; I blocks only","System functions (SFC)":"see instruction list","Deviation per day, max.":"10 s","IP degree of protection":"IP20","Number of entries, max.":"100","Status/control variable":"Yes","Transmission rate, max.":"12 Mbit/s","User data per job, max.":"180 byte","For Bit Operations, Typ.":"0.1 µs","Number of DPV1 alarm OBs":"3; OB 55, 56, 57","Number of blocks (total)":"1 024; (DBs, FCs, FBs); the maximum number of loadable blocks can be reduced by the MMC used.","Number of clock memories":"8; 1 memory byte","Number of free cycle OBs":"1; OB 1","Number of time alarm OBs":"1; OB 10","Short-circuit protection":"Yes","Size of GD packets, max.":"22 byte","For Word Operations, Typ.":"0.2 µs","Global data communication":"No","Number of DP slaves, max.":"32; Per station","Number of delay alarm OBs":"1; OB 20","Number of variables, max.":"10","Point-to-point connection":"No","Automatic Baud Rate Search":"Yes; only with passive interface","Between Different Circuits":"75 V DC/60 V AC","Hardware clock (real-time)":"Yes","Number of GD packets, max.":"4","Number of connections, max.":"12; Notice: 12 connections per CPU, not per interface","Number of process alarm OBs":"1; OB 40","Process diagnostic messages":"Yes; ALARM_S, ALARM_SC, ALARM_SQ, ALARM_D, ALARM_DQ","Reverse polarity protection":"Yes","S7 communication, as client":"No","S7 communication, as server":"Yes","usable for OP communication":"11","usable for PG communication":"11","Retentive And Synchronizable":"Yes","System function blocks (SFB)":"see instruction list","Number of PROFINET interfaces":"0","Number of wireless interfaces":"0","additional within an error OB":"4","from supply voltage 1L+, max.":"250 mA; 280 mA with DP master module","reserved for OP communication":"1","reserved for PG communication":"1","Number of cyclic interrupt OBs":"1; OB 35","Of Which Status Variables, Max.":"30","For Fixed Point Arithmetic, Typ.":"2 µs","Number of asynchronous error OBs":"6; OB 80, 82, 83, 85, 86, 87","Of Which Control Variables, Max.":"14","User data per address area, max.":"32 byte; Up to max. size of the transfer memory","for backplane bus (5 V DC), max.":"700 mA","usable for S7 basic communication":"10","Number of modules per system, max.":"63; Centralized","For Floating Point Arithmetic, Typ.":"3 µs","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","reserved for S7 basic communication":"0","Activation/deactivation of DP slaves":"Yes","Number of GD packets, receiver, max.":"4","adjustable for OP communication, max.":"11","adjustable for PG communication, max.":"11","Number of GD packets, transmitter, max.":"4","Number of industrial Ethernet interfaces":"0","simultaneously active Alarm-S blocks, max.":"40","User program protection/password protection":"Yes","adjustable for S7 basic communication, max.":"10","Size of GD packet (of which consistent), max.":"22 byte","User data per job (of which consistent), max.":"64 byte","Power supply to interface (15 to 30 V DC), max.":"No","Direct data exchange (slave-to-slave communication)":"Yes","Ambient air temperature-barometric pressure-altitude":"Tmin ... Tmax at 1 080 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax - 20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m)","Number of login stations for message functions, max.":"12; Depending on the configured connections for PG/OP and S7 basic communication","between PROFIBUS DP and all other circuit components":"Yes","Data management on MMC (after last programming), min.":"10 y","Between Load Voltage And All Other Switching Components":"Yes","Retentive data area (incl. timers, counters, flags), max.":"64 kbyte","Isochronous operation (application synchronized up to terminal)":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$576.58","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a8a36b8f10a30a3bcb80310048e52ad2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=195979&mlfb=6AG1151-7AA20-7AB0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1151-7AA20-7AB0","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/6AG1151-7AA20-7AB0 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}}