{"product_id":"allen-bradley-1746sc-ino4vi-isolated-analog-output-module","title":"Allen-Bradley 1746SC-INO4VI Isolated Analog Output Module","description":"\u003ch1\u003eAllen-Bradley 1746SC-INO4VI Isolated Analog Output Module\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1746SC-INO4VI\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746SC-INO4VI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eisolated analog output module, serves as the primary\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSLC 500 analog signal generation interface\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilized to execute multi-channel voltage and current waveform output across SLC 500 backplane systems. It provides four galvanically isolated output channels supporting 16-bit digital-to-analog conversion for field device actuation.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eNo documented suffix segmentation exists for 1746SC-INO4VI. The identifier maps directly to a fixed 4-channel isolated analog output configuration within the Spectrum Controls SLC 500 module family.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1746SC-INO4VI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley (Spectrum Controls)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eThermal dissipation 5 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4 isolated analog outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16 bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Types\u003c\/td\u003e\n\u003ctd\u003e0-20 mA, 4-20 mA, 0-21 mA, 0-5 V, 1-5 V, 0-10 V, +\/-10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.08% FS (current @ 25 deg C), ±0.10–0.35% FS (voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-linearity\u003c\/td\u003e\n\u003ctd\u003e0.02% FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response\u003c\/td\u003e\n\u003ctd\u003e1 ms to 95% FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e120 mA @ 5 V, 250 mA @ 24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e500 VAC field-to-backplane, 500 VAC channel-to-channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSLC 500 Backplane Output Architecture\u003c\/h3\u003e\n\u003cp\u003eThe module interfaces through the SLC 500 backplane as a deterministic output device with per-channel DAC update cycles. Each channel operates with independent isolation barriers separating field wiring from logic backplane domains. Output scaling is handled via 16-bit resolution conversion with linear mapping across voltage and current modes. Step response is constrained to 1 ms settling to 95% full-scale, defining loop update latency in closed-loop control applications.\u003c\/p\u003e\n\u003cp\u003eIsolation structure is implemented as dual-domain separation: channel-to-channel isolation and field-to-backplane isolation, both rated at 500 VAC continuous. This prevents cross-channel interference under mixed voltage\/current configuration.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can all four channels operate in mixed voltage and current modes simultaneously?\u003cbr\u003eA: Each channel supports independent configuration for voltage or current output modes. Mixed operation is determined per-channel via module configuration, with no global mode locking.\u003c\/p\u003e\n\u003cp\u003eQ: What happens to outputs during backplane power interruption?\u003cbr\u003eA: On loss of backplane power, output stages transition to defined safe state behavior as implemented in module firmware, with DAC outputs decaying according to internal discharge characteristics.\u003c\/p\u003e\n\u003cp\u003eQ: Does channel-to-channel isolation affect update synchronization?\u003cbr\u003eA: Channel isolation is electrical only. DAC update cycles remain synchronized through backplane timing, while isolation prevents analog cross-coupling between output stages.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eInstall module into a single SLC 500 chassis slot with power removed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify backplane connector seating alignment before applying mechanical locking force.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain separation between analog output wiring and high-frequency switching conductors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse shielded cabling for low-level voltage outputs where noise susceptibility is present.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTerminate cable shields at a single-point ground reference to avoid circulating current loops. \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43537749049434,"sku":"1746SC-INO4VI","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1746SC-INO4VI2.jpg?v=1782203671","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1746sc-ino4vi-isolated-analog-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}