{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7235-0KD22-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7235-0KD22-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7235-0KD22-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7235-0KD22-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens EM 235 analog combination module, 6ES7235-0KD22-0XA0, 4 differential analog inputs and 1 analog output, 71.2 x 80 x 62 mm.","salesMarkdown":"## 4 analog inputs, 1 analog output — the EM 235 combo module for S7-200 The Siemens 6ES7235-0KD22-0XA0 is the EM 235 analog combination module for the S7-200 PLC family, packing 4 differential analog inputs and 1 analog output into a single expansion unit. The four inputs accept differential signals across a wide range: ±10 V, ±5 V, ±2.5 V, 0–10 V, 0–5 V, 0–1 V, ±1 V, ±500 mV, ±250 mV, ±100 mV, ±50 mV, ±25 mV, 0–500 mV, 0–100 mV, 0–50 mV, and 0–20 mA, with a bipolar resolution of ±32,000 counts and unipolar 0–32,000 counts. The single analog output provides voltage (0–10 V, ±10 V) or current (0–20 mA) signals, with a 100 µs conversion time for voltage outputs and 2 ms for current outputs — fast enough for most process loops on an S7-200 rack. ## Conversion speed and signal range — what the specs mean for the scan cycle Basic conversion time is under 0.25 ms per channel, so reading all four inputs adds roughly 1 ms to the PLC scan cycle. The module draws 2 W typical power from the backplane bus; that thermal budget is manageable in a standard S7-200 rack but matters if you are loading the 5 V rail near its limit with multiple expansion modules. Maximum common-mode voltage is 12 V between the differential pairs — keep the signal sources within that window to avoid clipping the input front-end. ## Panel fit — footprint and mounting No plug-in I/O terminals; wiring connects to the fixed screw terminals on the module face.","metaTitle":"Siemens 6ES7235-0KD22-0XA0 EM 235, 4 AI / 1 AO","metaDescription":"Siemens 6ES7235-0KD22-0XA0 EM 235 analog combo module: 4 differential inputs, 1 output, 100 µs voltage conversion. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Depth":"62 mm","Width":"71.2 mm","title":"6ES7235-0KD22-0XA0","Height":"80 mm","Current":"Yes","Voltage":"Yes","0 to +1 V":"Yes","0 to +5 V":"Yes","0 to +10 V":"Yes","0 to 20 mA":"Yes","Resistance":"No","0 to +50 mV":"Yes","description":"***Spare part*** SIMATIC S7-200, analog I/O EM 235, only for S7-22X CPU, 4 AI, +/-10 V DC; 1 AO, +/-10 V DC 12 bit converter","-1 V to +1 V":"Yes","-5 V to +5 V":"Yes","0 to +100 mV":"Yes","0 to +500 mV":"Yes","Thermocouple":"No","-10 V to +10 V":"Yes","Bipolar Signals":"-32 000 to +32 000","Parameterizable":"No","Weight, approx.":"186 g","lifecycle_stage":"current","-2.5 V to +2.5 V":"Yes","-25 mV to +25 mV":"Yes","-50 mV to +50 mV":"Yes","Power loss, typ.":"2 W","Unipolar Signals":"0 to 32 000","-100 mV to +100 mV":"Yes","-250 mV to +250 mV":"Yes","-500 mV to +500 mV":"Yes","For Current Output":"2 ms","For Voltage Output":"100 µs","Plug-in I/O terminals":"No","Resistance thermometer":"No","Number of analog inputs":"4; Difference","Number of analog outputs":"1","Common mode voltage, max.":"12 V","external fault EXTF (red)":"Yes","Basic conversion time (ms)":"< 0.25 ms","With Current Outputs, Max.":"0.5 kΩ","With Voltage Outputs, Min.":"5 kΩ","from backplane bus 5 V DC, max.":"30 mA","Potential separation analog inputs":"No","Potential separation analog outputs":"No","from external supply (24 V DC), max.":"60 mA","Current, relative to output range, (+/-)":"0.5 %","Voltage, relative to output range, (+/-)":"0.5 %","Resolution with overrange (bit including sign), max.":"11 bit","Interference voltage suppression for interference frequency f1 in Hz":"40 dB, DC to 60 Hz","Permissible Input Current For Current Input (Destruction Limit), Max.":"32 mA","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"30 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$315.00 – $412.75","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4e1b047c88d7a611c8aaabc85bee0854.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=425134&mlfb=6ES7235-0KD22-0XA0"},"ai":{"faq":[{"question":"Where can I buy the 6ES7235-0KD22-0XA0?","answer":"Availability and pricing are confirmed at the time of quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7235-0KD22-0XA0","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/6ES7235-0KD22-0XA0 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}}