{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7144-1GB31-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7144-1GB31-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7144-1GB31-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7144-1GB31-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC EM 144 analog module, 2 inputs + 2 outputs, 4-20 mA / ±20 mA, 55 x 87 x 110 mm, 0.9 W.","salesMarkdown":"## 2 AI / 2 AO with 4-20 mA and ±20 mA ranges The Siemens 6ES7144-1GB31-0XB0 is an EM 144 analog I/O module for the SIMATIC ET 200X distributed I/O family, providing 2 analog inputs and 2 analog outputs in a single unit. Inputs accept both 4 mA to 20 mA and -20 mA to +20 mA current signals, with an input resistance of 25 Ω for either range — the 4-20 mA range is the standard for process transmitters, while the ±20 mA range covers bipolar signals from actuators or flow meters. The module draws 0.9 W typical power loss, with a maximum current draw of 40 mA from the supply voltage L+. ## Channel-by-channel diagnostics and alarms Each input channel independently monitors for wire-break, short-circuit, overflow/underflow, and limit value alarms — the diagnostics are parameterizable and report via a group error SF (red) LED. Hardware interrupts are supported, and the module can generate a diagnostic alarm on fault conditions, making it suitable for safety-monitored loops where the PLC needs immediate notification of a broken sensor wire or a shorted loop. The integrating measurement principle with a parameterizable integration time of 16.7 ms or 20 ms matches the 50 Hz or 60 Hz line frequency for noise rejection — common mode interference is suppressed by at least 60 dB, and crosstalk between inputs by at least 45 dB.","metaTitle":"Siemens 6ES7144-1GB31-0XB0 EM 144, 2 AI / 2 AO, 4-20 mA","metaDescription":"Siemens 6ES7144-1GB31-0XB0 EM 144 analog module, 2 inputs + 2 outputs, 4-20 mA / ±20 mA, 0.9 W. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Depth":"55 mm","Width":"87 mm; Width module 60 mm","Height":"110 mm","Current":"Yes","Wire-break":"Yes; channel by channel","4 mA to 20 mA":"Yes","Short-circuit":"Yes; channel by channel","Shielded, Max.":"30 m","Weight, approx.":"250 g","lifecycle_stage":"current","-20 mA to +20 mA":"Yes","Diagnostic alarm":"Yes","Power loss, typ.":"0.9 W","Limit value alarm":"Yes; upper limit, channel by channel/ lower limit channel by channel","Number of outputs":"2","Hardware interrupt":"Yes","Overflow/underflow":"Yes; channel by channel","up to 40 °C, max.":"0.9 A","up to 55 °C, max.":"0.7 A","Analog value display":"S7 Format / S5 Format","Diagnostics function":"Yes; Parameterizable","Group error SF (red)":"Yes","Integration time (ms)":"16,7 / 20 ms","Measurement principle":"integrating","Number of analog inputs":"2","Short-circuit protection":"Yes; Electronic","from supply voltage L+, max.":"40 mA","Common mode interference, min.":"60 dB","Cycle time (all channels) max.":"134 / 160","Input resistance (4 mA to 20 mA)":"25 Ω","Between the inputs and MANA (UCM)":"2 V DC / 2 Vpp AC","Integration time, parameterizable":"Yes","Crosstalk between the inputs, min.":"45 dB","Potential separation analog inputs":"No","Input resistance (-20 mA to +20 mA)":"25 Ω","between MANA and M internally (UISO)":"0V AC; DC","Current, relative to input range, (+/-)":"1 %","Voltage, relative to input range, (+/-)":"1 %","For Current Measurement As 2-Wire Transducer":"No","For Current Measurement As 4-Wire Transducer":"Yes","Linearity error (relative to input range), (+/-)":"0.05 %","Temperature error (relative to input range), (+/-)":"0.01 %/K","Resolution with overrange (bit including sign), max.":"12 bit; + sign; overrange 17.5%","Design of electrical connection for the inputs and outputs":"4/5-pin M12 circular connectors","Interference voltage suppression for interference frequency f1 in Hz":"50 / 60 Hz","Permissible Input Current For Current Input (Destruction Limit), Max.":"40 mA","Repeat accuracy in steady state at 25 °C (relative to input range), (+/-)":"0.05 %","Series mode interference (peak value of interference < rated value of input range), min.":"40 dB"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$327.94","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eaa2d09cb181f4f534f179bc0da588d0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=127937&mlfb=6ES7144-1GB31-0XB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7144-1GB31-0XB0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7144-1GB31-0XB0","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/6ES7144-1GB31-0XB0 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}}