{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7212-1BB23-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7212-1BB23-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7212-1BB23-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7212-1BB23-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-200 CPU 222, 6ES7212-1BB23-0XB0, compact PLC with 8 digital inputs / 6 relay outputs, 24 VDC supply, LAD/FBD/STL, MPI/PPI, active.","salesMarkdown":"## CPU 222 — compact control for distributed I/O The Siemens 6ES7212-1BB23-0XB0 is the S7-200 CPU 222, a compact PLC with 8 digital inputs and 6 relay outputs, powered by 24 VDC (20.4 V to 28.8 V permissible range) or 100 V to 230 V AC. It programs in LAD, FBD, or STL and communicates via MPI (as a slave) or PPI at 19.2/187.5 kbit/s. The built-in RS-485 port handles program uploads, HMI panels like the TD 200, and CPU-to-CPU data exchange within the S7-200 network. ## What the I/O and counters mean on the line The 8 inputs are source/sink configurable per group and include four 30 kHz high-speed counters (32-bit, up/down, with interrupt on setpoint) that can handle two incremental encoders with 90° offset pulse trains at up to 20 kHz. That means this CPU can track a conveyor position or count fast parts without an external counter module. The 6 relay outputs switch up to 10 ms on/off and handle 30 W DC or 200 W AC lamp loads — enough for direct control of small contactors or pilot lights in a panel. ## Memory backup that survives a wet-well power blip Program and DB1 are stored on integral EEPROM — no battery needed for the program. Current DB1 values, retentive bits, timers, and counters are buffered by a high-performance capacitor that holds data for at least 8 hours at 40 °C (50 h max). An optional battery module extends that to 200 days typical. In a lift station where power can flicker for hours, the capacitor gives you enough hold time to ride through the outage without losing the pump alternation sequence.","metaTitle":"Siemens 6ES7212-1BB23-0XB0 S7-200 CPU 222, 8 DI/6 DO, 24 VDC","metaDescription":"Siemens 6ES7212-1BB23-0XB0 S7-200 CPU 222 PLC. 8 digital inputs, 6 relay outputs. 24 VDC supply. LAD/FBD/STL programming. MPI/PPI. Active production.","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: 20.4V to 28.8V","Depth":"62 mm","Width":"90 mm","Height":"80 mm","Number":"256","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","120 V AC":"Yes","230 V AC":"Yes","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","For Uprating":"No","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.":"310 g","lifecycle_stage":"current","\"0\" To \"1\", Max.":"10 ms; all outputs","\"1\" To \"0\", Max.":"10 ms; all outputs","Power loss, typ.":"7 W","Rated value (AC)":"100 V; 100 V AC to 230 V AC","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.":"30 W with DC, 200 W with AC","Program processing":"free cycle (OB 1), interrupt-controller, time-controlled (1 to 255 ms)","up to 40 °C, max.":"6 A","up to 55 °C, max.":"6 A","At \"0\" To \"1\", Max.":"12.8 ms","At \"0\" To \"1\", Min.":"0.2 ms","Between The Channels":"Yes; Relays","For Signal \"1\", Min.":"L+/L1","For Signal \"1\", Typ.":"2.5 mA","Inrush current, max.":"20 A; at 264 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","Number of relay outputs":"6","Transmission rate, max.":"187.5 kbit/s","Transmission rate, min.":"19.2 kbit/s","Counting frequency, max.":"30 kHz","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; Relays","With Resistive Load, Max.":"2 A","Between Different Circuits":"500 V DC between 24 V DC and 5 V DC; 1500 V AC between 24 V DC and 230 V AC","For Signal \"1\" Rated Value":"2 A","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 L1, max.":"140 mA; 20 to 70 mA (240 V); 40 to 140 mA (120 V); 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","Number of operating cycles, max.":"10 000 000; mechanically 10 million, at rated load voltage 100 000","AS-Interface inputs/outputs, max.":"62; AS-Interface A/B slaves (CP 243-2)","Between The Channels, In Groups Of":"3","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 (AC)":"5 V","permissible range, lower limit (DC)":"5 V","permissible range, upper limit (AC)":"250 V","permissible range, upper limit (DC)":"30 V","For Signal \"0\" Residual Current, Max.":"0 mA","Permissible Frequency Range, Lower Limit":"47 Hz","Permissible Frequency Range, Upper Limit":"63 Hz","User program protection/password protection":"Yes; 3-stage password protection","Permissible Quiescent Current (2-Wire Sensor), Max.":"1 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$368.30","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=26534&mlfb=6ES7212-1BB23-0XB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7212-1BB23-0XB0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7212-1BB23-0XB0","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/6ES7212-1BB23-0XB0 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}}