{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7123-1GB00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7123-1GB00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7123-1GB00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7123-1GB00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6ES7123-1GB00-0AB0. Full specifications and sourcing options are below.","salesMarkdown":"## Overview The 6ES7123-1GB00-0AB0 is a Siemens SIMATIC SC electronic submodule, designated as a spare part, providing two analog inputs for 4-20 mA and ±20 mA current signals with 13-bit resolution on the ±20 mA range and 12-bit on the 4-20 mA range. It draws 0.6 W from the backplane, offers 1500 V isolation test voltage, and mounts on the TB 16SC terminal block for integration into a SIMATIC SC I/O station. This submodule converts two analog current signals — either 4-20 mA or ±20 mA — into digital values for the controller. The integrating measurement principle with a basic conversion time of 55 / 65 ms (50 / 60 Hz) rejects line-frequency noise, and the integration time is parameterizable in four stages via digital filtering for additional noise suppression. Resolution is 13 bits on the ±20 mA range and 12 bits on the 4-20 mA range, with linearity error of 0.05 % and temperature error of 0.01 %/K. Reverse-polarity protection is built in, and common-mode rejection is 90 dB. ## Applications As a spare part for the SIMATIC SC system, this submodule fits into existing I/O racks where a 2-channel analog current input is needed — typically in process instrumentation loops for pressure, level, or flow transmitters transmitting 4-20 mA signals back to a PLC or DCS.","metaTitle":"Siemens 6ES7123-1GB00-0AB0 SIMATIC SC Electronic Submodule 2 AI","metaDescription":"Siemens 6ES7123-1GB00-0AB0 SIMATIC SC spare part electronic submodule, 2 analog inputs, 4-20 mA / ±20 mA, 0.6 W, 1500 V isolation.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Depth":"51 mm","Width":"10 mm","Alarms":"No","Height":"64 mm","Current":"Yes","Step: low":"Yes; 8x cycle time","Step: High":"Yes; 128x cycle time","Step: None":"Yes; 1x cycle time","Step: Medium":"Yes; 64x cycle time","4 mA to 20 mA":"Yes","Required Slots":"1; from 8","Shielded, Max.":"200 m","Parameterizable":"Yes; parameterizable in 4 stages by means of digital filtering","Weight, approx.":"20 g","lifecycle_stage":"current","-20 mA to +20 mA":"Yes","Power loss, typ.":"0.6 W","Rated value (DC)":"24 V","Between The Channels":"No","Diagnostics function":"No","Integration time (ms)":"50 / 60 ms","Isolation tested with":"1 500 V AC","Measurement principle":"integrating","Usable terminal block":"TB 16SC","Number of analog inputs":"2","Basic conversion time (ms)":"55 / 65 ms","Reverse polarity protection":"Yes","Resolution (incl. overrange)":"±20 mA: 13 bit, 4 to 20 mA: 12 bit","from supply voltage L+, max.":"30 mA","Input resistance (4 mA to 20 mA)":"50 Ω","Between the inputs and MANA (UCM)":"2 V DC / 2 Vpp AC","Integration time, parameterizable":"Yes","Crosstalk between the inputs, min.":"50 dB; At 50/60 Hz","Input resistance (-20 mA to +20 mA)":"50 Ω","Between The Channels And Backplane Bus":"No; Optocoupler","Current, relative to input range, (+/-)":"0.8 %","Common mode interference (USS < 2.5 V), min.":"90 dB","For Current Measurement As 2-Wire Transducer":"Yes; with external transmitter supply","For Current Measurement As 4-Wire Transducer":"Yes","For Voltage Measurement As 2-Wire Transducer":"Yes; 4-wire transformer with external transmitter feed","Linearity error (relative to input range), (+/-)":"0.05 %","Temperature error (relative to input range), (+/-)":"0.01 %/K","Resolution with overrange (bit including sign), max.":"13 bit","Between The Channels And The Power Supply Of The Electronics":"No","Interference voltage suppression for interference frequency f1 in Hz":"50 / 60 Hz","Permissible Input Current For Current Input (Destruction Limit), Max.":"40 mA; Permanent","Repeat accuracy in steady state at 25 °C (relative to input range), (+/-)":"0.1 %","Series mode interference (peak value of interference < rated value of input range), min.":"70 dB"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$248.54","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=441182&mlfb=6ES7123-1GB00-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7123-1GB00-0AB0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7123-1GB00-0AB0","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/6ES7123-1GB00-0AB0 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}}