{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1211-0AA23-2XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1211-0AA23-2XB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1211-0AA23-2XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1211-0AA23-2XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-200 CPU 221, 6AG1211-0AA23-2XB0, 24 V DC supply, 8 digital inputs / 6 digital outputs, 256 I/O expandable, IP20, 90 x 80 x 62 mm.","salesMarkdown":"## CPU core and programming environment The 6AG1211-0AA23-2XB0: This is the S7-200 CPU 221, the compact fixed-I/O member of the family. It supports LAD (ladder), FBD (function block diagram), and STL (statement list) programming, so any engineer familiar with the Siemens STEP 7-Micro/WIN environment can work with it without retooling. The program executes in a free cycle (OB 1), with interrupt control and time-controlled processing from 1 to 255 ms. The command set covers bit logic, timers, counters, integer and floating-point math, shift/rotate, table, and communications instructions. ## I/O and signal conditioning Eight digital inputs, configurable per group as source or sink, with a signal '1' threshold of min. 15 V and signal '0' from 0 to 5 V. Six of the inputs (E 0.0 to E 0.5) are parameterizable as high-speed counters at 30 kHz each. The six digital outputs include two pulse-train outputs (Q0.0, Q0.1) with a rise time of 2 µs and fall time of 10 µs — fast enough for simple stepper or PWM control. The four standard outputs (Q0.2 to Q0.3) switch in 15 µs on, 100 µs off. Total output current is 3 A up to 55 °C, with a 5 W lamp-load limit per channel. ## Communication and networking An integrated RS 485 interface supports both PPI and MPI protocols. PPI runs at 9.6/19.2/187.5 kbit/s for programming and HMI (TD 200, OP) communication, plus CPU-to-CPU data exchange within the S7-200 family. MPI operates at the same rates, allowing the CPU to act as an MPI slave to S7-300/S7-400 CPUs, OPs, and TDs. Maximum cable length is 150 m unshielded, 500 m shielded — enough for a small machine cell or conveyor section without a repeater. ## Memory and backup strategy The program and DB 1 data reside maintenance-free on integral EEPROM — no battery needed for program retention. Current DB 1 values, retentive memory bits, timers, and counters are buffered by a high-performance capacitor (min. 8 h at 40 °C, typ. 50 h). An optional battery module extends backup to 200 days. Four high-speed counters (32-bit, 30 kHz each) can be used as up/down counters or for connecting two incremental encoders with 90° offset A/B signals at up to 20 kHz. Each counter has parameterizable enable/reset and interrupt-on-setpoint capability.","metaTitle":"Siemens 6AG1211-0AA23-2XB0 S7-200 CPU, 24 V DC, 3 A output","metaDescription":"Siemens 6AG1211-0AA23-2XB0 S7-200 CPU, 24 V DC, 3 A output at 40 °C, 8 inputs/6 outputs, 256 I/O expandable. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"FBD":"Yes","LAD":"Yes","MPI":"Yes; As MPI slave for data exchange with MPI masters (S7-300/S7-400 CPUs, OPs, TDs, Push Button Panels); S7-200-internal CPU/CPU communication is possible in the MPI network with restrictions; transmission rates: 19.2/187.5 kbit/s","PPI":"Yes; with PPI protocol for program functions, HMI functions (TD 200, OP), S7-200-internal CPU/CPU communication ; transmission rates 9.6/19.2/187.5 kbit/s","STL":"Yes","24 V":"Yes; permissible range: 15.4 to 28.8 V","IP20":"Yes","Depth":"62 mm","Width":"90 mm","title":"6AG1211-0AA23-2XB0","Height":"80 mm","Number":"256","24 V DC":"Yes","Physics":"RS 485","Present":"Yes; Program: Entire program maintenance-free on integral EEPROM, programmable via CPU; data: Entire DB 1 loaded from PG/PC maintenance-free on integral EEPROM, current values of DB 1 in RAM, retentive memory bits, timers, counters, etc. maintenance-free via high-performance capacitor; optional battery for long-term buffering","Adjustable":"Yes; via high-performance capacitor or battery","Command set":"Bit logic instructions, compare instructions, timer instructions, counter instructions, clock instructions, transmissions instructions, table instructions, logic instructions, shift and rotate instructions, conversion instructions, program control instructions, interrupt and communications instructions, logic stack instructions, integer maths, floating-point math instructions, numerical functions","Lower Limit":"1 ms","Upper Limit":"54 min; 4 timers: 1 ms to 30 s; 16 timers: 10 ms to 5 min; 236 timers: 100 ms to 54 min","description":"***SPARE PART*** ***Spare part*** SIPLUS S7-200 CPU 221 -25...+70°C based on 6ES7211-0AA23-0XB0 DC/6DI/4DO","For Uprating":"Yes","Number, max.":"32 byte","2-Wire Sensor":"Yes","For Signal \"0\"":"0 to 5 V","For Signal \"1\"":"min. 15 V","Interface type":"Integrated RS 485 interface","Shielded, Max.":"500 m","Parameterizable":"Yes; (E 0.0 to E 0.5) 30 kHz","Weight, approx.":"270 g","lifecycle_stage":"current","\"0\" To \"1\", Max.":"15 µs; of the standard outputs, max. (Q0.2 to Q0.3) 15 µs; of the pulse outputs, max. (Q0.0 to Q0.1) 2 µs","\"1\" To \"0\", Max.":"130 µs; of the standard outputs, max. (Q0.2 to Q0.3) 100 µs; of the pulse outputs, max. (Q0.0 to Q0.1) 10 µs","Power loss, typ.":"3 W","Rated value (DC)":"24 V","Unshielded, Max.":"150 m","Backup time, max.":"50 h; (min. 8 h at 40 °C); 200 days (typ.) with optional battery module","Source/sink input":"Yes; optionally, per group","Number of counters":"4; High-speed counters (30 kHz each), 32 bit (incl. sign), can be used as up/down counters or for connecting 2 incremental encoders with 2 pulse trains offset by 90° (max. 20 kHz (A/B counters)); parameterizable enable and reset input; interrupt facilities (incl. call of subroutine with any content) when the setpoint is reached; reversal in counting direction, etc.","On Lamp Load, Max.":"5 W","Program processing":"free cycle (OB 1), interrupt-controller, time-controlled (1 to 255 ms)","up to 40 °C, max.":"3 A","up to 55 °C, max.":"3 A","At \"0\" To \"1\", Max.":"12.8 ms","At \"0\" To \"1\", Min.":"0.2 ms","Between The Channels":"Yes; Optocoupler","For Signal \"1\", Min.":"20 V DC","For Signal \"1\", Typ.":"2.5 mA","Inrush current, max.":"10 A; at 28.8 V","Output current, max.":"180 mA","Program organization":"1 OB, 1 DB, 1 SDB subroutines with/without parameter transfer","Serial Data Exchange":"Yes; As freely programmable interface with interrupt facility for serial data exchange with third-party devices with ASCII protocol transfer rates: 1.2 / 2.4 / 4.8 / 9.6 / 19.2 / 38.4 / 57.6 / 115.2 kbps; the PC/PPI cable can also be used as RS 232/RS 485 converter","Integrated (For Data)":"2 kbyte","Plug-in I/O terminals":"No","Number of alarm inputs":"4; 4 rising edges and/or 4 falling edges","Limit frequency (pulse)":"20 kHz","Number of pulse outputs":"2; High-speed outputs, 20 kHz, with interrupt option; pulse-width and frequency modulation option","Number of relay outputs":"0","Transmission rate, max.":"187.5 kbit/s","Transmission rate, min.":"19.2 kbit/s","For Bit Operations, Max.":"0.22 µs","Integrated (For Program)":"4 kbyte","Number of digital inputs":"6; Integrated","Short-circuit protection":"No; to be provided externally","Number of digital outputs":"4; Transistor","With Resistive Load, Max.":"0.75 A","Between Different Circuits":"500 V DC between 24 V DC and 5 V DC","For Signal \"1\" Rated Value":"750 mA","Number of subroutines, max.":"64","Vertical Installation, Max.":"45 °C; = Tmax","Vertical Installation, Min.":"-25 °C; = Tmin","from supply voltage L+, max.":"450 mA; 80 to 450 mA","Horizontal Installation, Max.":"70 °C; = Tmax","Horizontal Installation, Min.":"-25 °C; = Tmin","Number of analog potentiometers":"1; Analog potentiometer; resolution 8 bit","Of Which Retentive With Battery":"0 to 255, via high-performance capacitor or battery, adjustable","Counting frequency (counter) max.":"30 kHz","Between The Channels, In Groups Of":"4","Of Which Retentive Without Battery":"0 to 112 in EEPROM, adjustable","Number of memory modules (optional)":"1; pluggable memory module, content identical with integral EEPROM; can additionally store recipes, data logs and other files","Number of relay outputs, integrated":"0","connectable programming devices/PCs":"SIMATIC PG/PC, standard PC","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","For Signal \"0\" Residual Current, Max.":"0.1 mA","Limitation of inductive shutdown voltage to":"1 W","User program protection/password protection":"Yes; 3-stage password protection","Of The Pulse Outputs, With Resistive Load, Max.":"20 kHz; Q0.0 to Q0.1","Permissible Quiescent Current (2-Wire Sensor), Max.":"1 mA","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)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$261.62","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/122ac295d479e4a3e3dc3fe94638a391.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=125596&mlfb=6AG1211-0AA23-2XB0"},"ai":{"faq":[{"question":"What programming languages does the 6AG1211-0AA23-2XB0 support?","answer":"It supports LAD (ladder), FBD (function block diagram), and STL (statement list). All three are standard in the STEP 7-Micro/WIN environment."},{"question":"Can the 6AG1211-0AA23-2XB0 communicate with S7-300 or S7-400 CPUs?","answer":"Yes, via MPI as an MPI slave. It also supports PPI for HMI and S7-200 internal CPU/CPU communication at 9.6/19.2/187.5 kbit/s."},{"question":"What is the maximum output current and how does it derate with temperature?","answer":"The total output current is 3 A up to 55 °C. The 24 V DC supply range is 15.4 to 28.8 V, with typical power loss of 3 W."},{"question":"Does the 6AG1211-0AA23-2XB0 retain its program without a battery?","answer":"Yes, the program and DB 1 data are stored maintenance-free on integral EEPROM. Current values are buffered by a high-performance capacitor (min. 8 h at 40 °C, typ. 50 h), with an optional battery module extending backup to 200 days."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1211-0AA23-2XB0","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/6AG1211-0AA23-2XB0 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}}