{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7212-1AB23-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7212-1AB23-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7212-1AB23-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7212-1AB23-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-200 CPU 222 DC/DC/DC, 6ES7212-1AB23-0XB0, 24 V DC, 8 DI/6 DO, MPI/PPI, FBD/LAD/STL, high-speed counting.","salesMarkdown":"## What it is, what it does The Siemens 6ES7212-1AB23-0XB0 is a CPU module in the S7-200 family, powered by 24 V DC (permissible range 15.4 to 28.8 V) and carrying 8 digital inputs and 6 digital outputs. Six of the inputs can be configured as high-speed counters up to 30 kHz, and two outputs support fast pulse trains (2 µs rise). Typical power draw is 5 W, and the backup for retentive data lasts at least 8 hours at 40 °C via the integral capacitor, or up to 200 days with the optional battery. ## Integration and mounting notes The integrated RS-485 interface runs over shielded cable up to 500 m. Digital outputs are source logic, configurable per group as source or sink (E 0.0–0.5). For high-speed counting inputs, ensure the signal meets 0–5 V for logic '0' and at least 15 V for logic '1'.","metaTitle":"Siemens 6ES7212-1AB23-0XB0 CPU 222, 24 V DC","metaDescription":"Active Siemens S7-200 CPU 222 DC/DC/DC, 24 V (15.4–28.8 V) supply, 8 DI/6 DO, MPI/PPI, high-speed counters 30 kHz. Critical spare for legacy installations; 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":"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","Depth":"62 mm","Width":"90 mm","title":"6ES7212-1AB23-0XB0","Height":"80 mm","Number":"256","24 V DC":"Yes","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","Size, max.":"32 byte","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*** SIMATIC S7-200, CPU 222 Compact unit, DC power supply 8 DI DC/6 DO DC 4 KB progr./2 KB data, PROFIBUS DP expandable","For Uprating":"Yes","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","Operation, max.":"95 %; RH class 2 in accordance with IEC 1131-2","Operation, min.":"5 %","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 Q0.5) 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 Q0.5) 100 µs; of the pulse outputs, max. (Q0.0 to Q0.1) 10 µs","Power loss, typ.":"5 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","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.":"4.5 A","up to 55 °C, max.":"4.5 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","Retentivity available":"Yes; M 0.0 to M 31.7","Number of alarm inputs":"4; 4 rising edges and/or 4 falling edges","IP degree of protection":"IP20","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":"8","Short-circuit protection":"No; to be provided externally","Number of digital outputs":"6; 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","Analog inputs/outputs, max.":"10; max. 8 inputs and 2 outputs (EM) or max. 0 inputs and 4 outputs (EM)","Number of subroutines, max.":"64","Vertical Installation, Max.":"45 °C","Vertical Installation, Min.":"0 °C","Digital inputs/outputs, max.":"78; max. 40 inputs and 38 outputs (CPU + EM)","from supply voltage L+, max.":"500 mA; 85 mA to 500 mA, output current for expansion modules (5 V DC) 340 mA","Horizontal Installation, Max.":"55 °C","Horizontal Installation, Min.":"0 °C","Permissible Range, Lower Limit":"860 hPa","Permissible Range, Upper Limit":"1 080 hPa","Number of analog potentiometers":"1; Analog potentiometer; resolution 8 bit","Number of expansion units, max.":"2; Only expansion modules of the S7-22x series can be used. Due to the limited output current, the use of expansion modules may be limited.","Of Which Retentive With Battery":"0 to 255, via high-performance capacitor or battery, adjustable","AS-Interface inputs/outputs, max.":"62; AS-Interface A/B slaves (CP 243-2)","Between The Channels, In Groups Of":"6","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","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.":"10 µA","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$286.00 – $295.59","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f197dc5500844272ef47c2d7b0a90673.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=451936&mlfb=6ES7212-1AB23-0XB0"},"ai":{"faq":[{"question":"What communication protocols does this CPU support?","answer":"It supports MPI as an MPI slave for data exchange with S7-300/400 CPUs, OPs, and TDs, and PPI for programming and HMI functions. Transmission rates are 9.6, 19.2, and 187.5 kbit/s."},{"question":"Can I use both FBD and LAD programming on this CPU?","answer":"Yes, it supports FBD (Function Block Diagram), LAD (Ladder Logic), and STL (Statement List)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7212-1AB23-0XB0","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/6ES7212-1AB23-0XB0 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}}