{"title":"Measurement electronics SIL3 | PL e","description":"\u003ch2\u003eMeasurement Electronics SIL3 | PL e — Dual-Channel Redundancy\u003c\/h2\u003e\n\u003cp\u003eThe highest safety level available here: The measuring amplifier applies a bridge signal to \u003cstrong\u003etwo galvanically isolated current outputs\u003c\/strong\u003e; a safety controller compares them and switches the system to a safe state in the event of a deviation. Redundancy is achieved through the two channels, not through higher measurement accuracy — these devices are safety components, not measuring instruments.\u003c\/p\u003e\n\u003cp\u003eThis always involves two parts: the amplifier and the controller that checks its channels. Without a safety controller, the redundancy remains unused. If you want to manage without a controller, you can find the alternative under \u003ca href=\"\/en\/collections\/messelektronik-sil1-plc\"\u003eSIL1 | PL c\u003c\/a\u003e — where the protective function is integrated into the device.\u003c\/p\u003e\n\u003ch3\u003eThe Devices\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSMM-DR\u003c\/strong\u003e — Amplifier in a DIN rail housing for the control cabinet. The measuring chain can be tested during operation via the test input: a 24 VDC pulse increases the current of channel B by 1 mA. If the channels deviate from each other by more than 10%, the controller switches the system to a safe state.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSMM-HD\u003c\/strong\u003e — The same amplifier in an IP65 field housing for mounting outside the control cabinet. One or two amplifiers are located in the same housing; two measuring points are monitored independently with two bridges.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSCU-DR\u003c\/strong\u003e — The corresponding programmable safety controller. Freely programmable with up to 800 AWL (STL) instructions, function plan-oriented, with cross-circuit detection and external contact monitoring. For connection to the plant control system, PROFISAFE and FSoE up to SIL3 or PL e are available in addition to interface modules.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eWhat belongs to it\u003c\/h3\u003e\n\u003cp\u003eThe matching transducers can be found under \u003ca href=\"\/en\/collections\/waegezellen-kraftaufnehmer\"\u003eload cells \u0026amp; force transducers\u003c\/a\u003e, the rest of the range under \u003ca href=\"\/en\/collections\/messelektronik\"\u003eMeasurement Electronics\u003c\/a\u003e. Architecture, key figures for system certification, and typical applications are explained on the page \u003ca href=\"\/en\/pages\/funktionale-sicherheit-sil-pl\"\u003eFunctional Safety SIL | PL\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"esma-dms-bruecken-messverstaerker-sil3","title":"ESMA strain gauge bridge amplifier, SIL3","description":"\u003cp\u003e\u003cstrong\u003eStrain gauge bridge amplifier SMM-DR\u003c\/strong\u003e for safety-related force and load measurement rated \u003cstrong\u003eSIL3\u003c\/strong\u003e and \u003cstrong\u003ePL e category 3\u003c\/strong\u003e. The amplifier puts \u003cstrong\u003eone\u003c\/strong\u003e bridge signal on \u003cstrong\u003etwo galvanically isolated current outputs\u003c\/strong\u003e, so that a safety controller can check the two channels against each other.\u003c\/p\u003e\n\u003cp\u003eThis is a safety component, not a measuring instrument: the redundancy comes from the two outputs, not from higher measuring accuracy. If the channels deviate by more than 10 %, the controller takes the plant to its safe state.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003etest pulse input\u003c\/strong\u003e allows the measuring chain to be checked during operation: a 24 VDC pulse raises the current of channel B by 1 mA. The matching safety controller is the SCU-DR from the same range.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures of the SMM-DR\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e✅Sensor input: \u003cstrong\u003e1 × strain gauge full bridge 350 Ω\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅Bridge sensitivity: up to \u003cstrong\u003e4 mV\/V\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅Bridge supply: 5 VDC\u003c\/p\u003e\n\u003cp\u003e✅Analog output: \u003cstrong\u003e2 × 4 … 20 mA\u003c\/strong\u003e, channel A and B, galvanically isolated\u003c\/p\u003e\n\u003cp\u003e✅Nominal range: 8 … 16 mA within 4 … 20 mA\u003c\/p\u003e\n\u003cp\u003e✅Load resistance: 500 Ω max.\u003c\/p\u003e\n\u003cp\u003e✅Test pulse input: 24 VDC ±20 %, ≤ 250 Hz\u003c\/p\u003e\n\u003cp\u003e✅Safety rating: \u003cstrong\u003eSIL3\u003c\/strong\u003e (EN 61508, EN 62061) · \u003cstrong\u003ePL e category 3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅Supply: 24 VDC ±10 %, 100 mA max.\u003c\/p\u003e\n\u003cp\u003e✅Housing: DR22.5 for TS 35 rail · 117.2 × 22.5 × 113.6 mm\u003c\/p\u003e\n\u003cp\u003e✅Protection: IP20\u003c\/p\u003e\n\u003cp\u003e✅Temperature coefficient: \u0026lt; 50 ppm\/K\u003c\/p\u003e\n\u003cp\u003e✅Order number: 0600-00492\u003c\/p\u003e","brand":"octogon Shop","offers":[{"title":"Default Title","offer_id":57265729929542,"sku":null,"price":860.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/ESMA_SMM-DR__product.png?v=1788560250"},{"product_id":"esmb-dms-bruecken-messverstaerker-sil3-ip65","title":"ESMB strain gauge bridge amplifier, SIL3, IP65","description":"\u003cp\u003e\u003cstrong\u003eStrain gauge bridge amplifier SMM-HD\u003c\/strong\u003e for safety-related force and load measurement rated \u003cstrong\u003eSIL3\u003c\/strong\u003e and \u003cstrong\u003ePL e category 3\u003c\/strong\u003e — in an \u003cstrong\u003eIP65 field housing\u003c\/strong\u003e for mounting outside the control cabinet.\u003c\/p\u003e\n\u003cp\u003eEach bridge signal goes to \u003cstrong\u003etwo galvanically isolated current outputs\u003c\/strong\u003e, so that a safety controller can check the channels against each other. The device is a safety component, not a measuring instrument: the redundancy comes from the two outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOne or two amplifiers\u003c\/strong\u003e sit in the same housing — with two bridges, two measuring points are monitored safely and independently of each other. The matching safety controller is the SCU-DR from the same range.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures of the SMM-HD\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e✅Sensor input: \u003cstrong\u003e1 or 2 × strain gauge full bridge 350 Ω\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅Bridge sensitivity: up to \u003cstrong\u003e4 mV\/V\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅Bridge supply: 5 VDC\u003c\/p\u003e\n\u003cp\u003e✅Analog output: \u003cstrong\u003e2 × 4 … 20 mA per bridge\u003c\/strong\u003e, galvanically isolated\u003c\/p\u003e\n\u003cp\u003e✅Nominal range: 8 … 16 mA within 4 … 20 mA\u003c\/p\u003e\n\u003cp\u003e✅Load resistance: 500 Ω max.\u003c\/p\u003e\n\u003cp\u003e✅Test pulse input included\u003c\/p\u003e\n\u003cp\u003e✅Safety rating: \u003cstrong\u003eSIL3\u003c\/strong\u003e (EN 61508, EN 62061) · \u003cstrong\u003ePL e category 3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅Supply: 24 VDC ±10 %, 100 mA max.\u003c\/p\u003e\n\u003cp\u003e✅Housing: U-CASE 2 field housing\u003c\/p\u003e\n\u003cp\u003e✅Protection: \u003cstrong\u003eIP65\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅Order numbers: 0600-00493 (one bridge) · 0600-00494 (two bridges)\u003c\/p\u003e","brand":"octogon Shop","offers":[{"title":"A full bridge (0600-00493)","offer_id":57265731404102,"sku":null,"price":904.0,"currency_code":"EUR","in_stock":true},{"title":"Two full bridges (0600-00494)","offer_id":57265731535174,"sku":null,"price":1729.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/ESMB_SMM-HD__product.png?v=1788560313"},{"product_id":"esmd-programmierbare-sicherheitssteuerung-sil3","title":"ESMD programmable safety controller, SIL3","description":"\u003cp\u003e\u003cstrong\u003eProgrammable safety controller SCU-DR\u003c\/strong\u003e for \u003cstrong\u003eSIL3\u003c\/strong\u003e (IEC 61508) and \u003cstrong\u003ePL e\u003c\/strong\u003e (EN ISO 13849-1). This is the controller that the SIL3 amplifiers of this range require: it compares the two redundant channels of an SMM-DR or SMM-HD and takes the plant to its safe state on deviation.\u003c\/p\u003e\n\u003cp\u003eA logic device, not a measuring device. Freely programmable with up to \u003cstrong\u003e800 STL instructions\u003c\/strong\u003e, function-plan oriented, with \u003cstrong\u003ecross-fault detection\u003c\/strong\u003e and external contact monitoring (EMU).\u003c\/p\u003e\n\u003cp\u003eThe controller connects to the plant control system over fieldbus — besides interface modules, \u003cstrong\u003ePROFISAFE\u003c\/strong\u003e and \u003cstrong\u003eFSoE\u003c\/strong\u003e are available up to PL e and SIL3 respectively.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures of the SCU-DR\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e✅Safe digital inputs: \u003cstrong\u003e14\u003c\/strong\u003e, of which 10 OSSD\u003c\/p\u003e\n\u003cp\u003e✅Safe analog inputs: \u003cstrong\u003e2\u003c\/strong\u003e (plus 4 standard inputs)\u003c\/p\u003e\n\u003cp\u003e✅Relay outputs: \u003cstrong\u003e6\u003c\/strong\u003e, of which 3 safe\u003c\/p\u003e\n\u003cp\u003e✅Standard outputs: 2\u003c\/p\u003e\n\u003cp\u003e✅Pulse outputs: 2 with cross-fault detection\u003c\/p\u003e\n\u003cp\u003e✅Expansion: 2 modules plus fieldbus\u003c\/p\u003e\n\u003cp\u003e✅Programming: up to \u003cstrong\u003e800 STL instructions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅PFH: \u003cstrong\u003e3.0 · 10⁻⁹\u003c\/strong\u003e at category 4\u003c\/p\u003e\n\u003cp\u003e✅Safety rating: \u003cstrong\u003eSIL3\u003c\/strong\u003e (IEC 61508) · \u003cstrong\u003ePL e\u003c\/strong\u003e (EN ISO 13849-1)\u003c\/p\u003e\n\u003cp\u003e✅Supply: 24 VDC, −10 \/ +15 % · power 2.4 W\u003c\/p\u003e\n\u003cp\u003e✅Housing: DIN rail · protection IP20\u003c\/p\u003e\n\u003cp\u003e✅Versions: standard · \/F with FSoE (EtherCAT) · \/P with PROFISAFE (PROFINET)\u003c\/p\u003e\n\u003cp\u003e✅Order key: C R X X X X X X - X X X\u003c\/p\u003e","brand":"octogon Shop","offers":[{"title":"SCU-DR Standard","offer_id":57265734353222,"sku":null,"price":1234.0,"currency_code":"EUR","in_stock":true},{"title":"SCU-DR\/F with FSoE (EtherCAT)","offer_id":57265734418758,"sku":null,"price":2383.0,"currency_code":"EUR","in_stock":true},{"title":"SCU-DR\/P with PROFISAFE (PROFINET)","offer_id":57265734451526,"sku":null,"price":2383.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/ESMD_SCU-DR__product.png?v=1788560414"}],"url":"https:\/\/octogon.org\/en\/collections\/measurement-electronics-sil3-ple.oembed","provider":"octogon GmbH","version":"1.0","type":"link"}