{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1151-7FA20-2AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1151-7FA20-2AB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1151-7FA20-2AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1151-7FA20-2AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6AG1151-7FA20-2AB0 PROFIBUS DP slave module, ET 200M series, 128 KB integrated memory, 244 byte inputs/outputs, RS 485 isolated interface, CE marked.","salesMarkdown":"## PROFIBUS DP slave for ET 200M — 128 KB memory, 244 byte I/O image The 6AG1151-7FA20-2AB0 is an IM 151-7 PROFIBUS DP slave module for the Siemens ET 200M distributed I/O system. It carries 128 kbyte of integrated memory for program and data storage, with 244 bytes each of process input and output image over the PROFIBUS DP network. The RS 485 interface is isolated, which prevents ground-loop coupling when the DP segment runs across different cabinet zones — a common need in furnace-side installations where the module sits near high-temperature zones and the controller is in a separate electrical room. ## Programming languages and thermal envelope The module supports FBD, LAD, SCL (optional), STL, and GRAPH (optional) — the full SIMATIC programming suite. This means the same block logic used in the central controller can be deployed to the slave without language conversion. Rated for -25 °C to 60 °C ambient, it fits inside a furnace-adjacent cabinet where summer temperatures push past 50 °C. The 6-week backup time at 40 °C retains retentive data — recipe parameters, burner profiles, soak timers — during a power loss without a separate UPS. ## Panel fit and compliance Dimensions are 60 mm wide, 119.5 mm high, 75 mm deep — standard ET 200M form factor that snaps onto a DIN rail. The DP master module occupies 35 mm width; this slave module takes the full 60 mm slot. CE marked for the European machinery directive. The GSD file is available directly from Siemens for network configuration.","metaTitle":"Siemens 6AG1151-7FA20-2AB0 PROFIBUS DP Module, 128 KB","metaDescription":"Siemens 6AG1151-7FA20-2AB0 PROFIBUS DP slave module, 128 KB integrated memory, 244 byte I/O, RS 485 isolated, CE marked. Sourced 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.":"60 °C; = Tmax","Min.":"-25 °C; = Tmin","Type":"SFB","Depth":"75 mm","GRAPH":"Yes; Optional","Width":"60 mm; DP master module: 35 mm","title":"6AG1151-7FA20-2AB0","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":"128 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 F-CPU -25...+60°C with conformal coating based on 6ES7151-7FA20-0AB0. 128 KB work memory with integrated PROFIBUS DP interface (9-pole D-sub socket) as DP slave, without battery","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)","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","RCM (formerly C-TICK)":"Yes","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 (for centralized I/O only, not for distributed I/O), 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)","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":"$996.95","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=108653&mlfb=6AG1151-7FA20-2AB0"},"ai":{"faq":[{"question":"How can I order the 6AG1151-7FA20-2AB0 or check availability?","answer":"This module is sourced through independent distribution and quoted to order against your BOM quantity."},{"question":"What programming languages does the 6AG1151-7FA20-2AB0 support?","answer":"It supports FBD, LAD, SCL (optional), STL, and GRAPH (optional). This covers the standard SIMATIC engineering toolchain, so the same block logic used in the central controller can run on this slave without conversion."},{"question":"Is the 6AG1151-7FA20-2AB0 suitable for furnace-side cabinet placement?","answer":"Yes — the -25 °C to 60 °C ambient range covers the thermal conditions in a furnace-adjacent cabinet. The isolated RS 485 interface also prevents ground loops when the DP cable runs across cabinet boundaries between the furnace zone and the electrical room."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1151-7FA20-2AB0","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/6AG1151-7FA20-2AB0 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}}