{"product_id":"ge-is420ydias1b-mark-vies-discrete-contact-input-module","title":"GE IS420YDIAS1B Mark VIeS Discrete Contact Input Module","description":"\u003ch2\u003eGE IS420YDIAS1B Mark VIeS Discrete Contact Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eIS420YDIAS1B\u003c\/strong\u003e is a discrete contact input I\/O pack manufactured by General Electric for the Mark VIeS Functional Safety System. Designated by the YDIA functional code, this module acquires and monitors up to 24 discrete contact signals from field devices, interfacing them directly with system safety logic via dual RJ-45 Ethernet ports.\u003c\/p\u003e\n\u003ch3\u003eSignal Conditioning and Safety Isolation\u003c\/h3\u003e\n\u003cp\u003eTo preserve signal integrity within industrial environments, the module uses optocouplers and isolated power circuitry to provide 1500 V optical isolation between field inputs and system logic. Input channels feature a 4 ms hardware filter time constant to attenuate electrical noise and transient interference. It supports dry contact signals across 24 V DC, 48 V DC, or 125 V DC voltage levels depending on the connected terminal board.\u003c\/p\u003e\n\u003ch3\u003eReal-Time Diagnostics and Architecture\u003c\/h3\u003e\n\u003cp\u003eEquipped with a common processor board and dedicated discrete-input acquisition circuitry, the module continuously performs power-up self-tests, input excitation voltage tracking, and input response verification. Sequence of Events (SOE) recording operates at a 1 ms sampling resolution for precise fault analysis. The unit connects via a DC-37 terminal board interface, supporting simplex, dual, and Triple Modular Redundancy (TMR) architectures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eIS420YDIAS1B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eMark VIeS Functional Safety System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Designation\u003c\/td\u003e\n\u003ctd\u003eYDIA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDiscrete Contact Input I\/O Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Input Channels\u003c\/td\u003e\n\u003ctd\u003e24 discrete contact inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\u003c\/td\u003e\n\u003ctd\u003eDry contact \/ discrete signals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Input Voltage Levels\u003c\/td\u003e\n\u003ctd\u003e24 V DC, 48 V DC, or 125 V DC (terminal-board dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Isolation\u003c\/td\u003e\n\u003ctd\u003e1500 V optical isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Input Filter\u003c\/td\u003e\n\u003ctd\u003e4 ms time constant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSequence of Events (SOE)\u003c\/td\u003e\n\u003ctd\u003eSupported (1 ms sampling resolution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interfaces\u003c\/td\u003e\n\u003ctd\u003eDual RJ-45 Ethernet ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Board Interface\u003c\/td\u003e\n\u003ctd\u003eDC-37 connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24\/28 V DC I\/O Pack power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Consumption\u003c\/td\u003e\n\u003ctd\u003e6.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Support\u003c\/td\u003e\n\u003ctd\u003eSimplex, dual, TMR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eMounts directly on compatible Mark VIeS terminal board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +70 deg C (-40 deg F to +158 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C (-40 deg F to +185 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What input voltages does the IS420YDIAS1B module accept?\u003c\/p\u003e\n\u003cp\u003e A: The module accepts dry contact input signals at 24 V DC, 48 V DC, or 125 V DC, depending on the specific terminal board configured with the unit.\u003c\/p\u003e\n\u003cp\u003eQ: What redundancy configurations are supported by this I\/O pack? \u003c\/p\u003e\n\u003cp\u003eA: The IS420YDIAS1B supports simplex, dual, and Triple Modular Redundancy (TMR) topologies when paired with compatible terminal board hardware and system configurations.\u003c\/p\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":67794690179171,"sku":"IS420YDIAS1B","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/323._2c2d17e7-6384-4c8c-9a31-76b3b8ae0653.jpg?v=1792978060","url":"https:\/\/www.autocontrolglobal.com\/products\/ge-is420ydias1b-mark-vies-discrete-contact-input-module","provider":"AutoControl Global","version":"1.0","type":"link"}