{"product_id":"emerson-deltav-ve4001s2t2b4-discrete-input-module","title":"Emerson DeltaV VE4001S2T2B4 32-Channel Discrete Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Emerson DeltaV VE4001S2T2B4 is a high-density 32-channel discrete input module designed for integration within DeltaV S-Series and M-Series automation platforms. This module is engineered to monitor the state of field-side devices such as switches, pushbuttons, and relay contacts by providing a 24 VDC excitation voltage. It is specifically optimized for high-density applications in oil and gas, chemical processing, and power generation, where space efficiency and reliable digital state monitoring are critical. The module features integrated filtering and galvanic isolation to maintain signal integrity in high-EMI industrial environments.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e32 independent discrete input channels per module.\u003c\/li\u003e\n\u003cli\u003eSupports dry contact sensing with 24 VDC excitation.\u003c\/li\u003e\n\u003cli\u003eHot-swappable design for maintenance without system downtime.\u003c\/li\u003e\n\u003cli\u003eSupports redundant configurations when paired with appropriate terminal blocks.\u003c\/li\u003e\n\u003cli\u003eIntegrated LED status indicators for each channel on the faceplate.\u003c\/li\u003e\n\u003cli\u003eAdvanced digital filtering to mitigate contact bounce and noise.\u003c\/li\u003e\n\u003cli\u003eGalvanic isolation (250 VAC field-to-logic) for enhanced system protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is widely utilized in process control systems for monitoring critical interlocks, emergency shutdown (ESD) inputs, and general digital status feedback from field instrumentation. Its high-density architecture makes it ideal for cabinets where I\/O count is high and space is limited.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eVE4001S2T2B4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003e32-Channel Discrete Input (Dry Contact)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e5 mA at 24 VDC (nominal per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocalBus Power\u003c\/td\u003e\n\u003ctd\u003e12 VDC at 150 mA (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Power\u003c\/td\u003e\n\u003ctd\u003e24 VDC at 200 mA (maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95 percent (Non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e250 VAC (Field-to-Logic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP 20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the system carrier is powered down before inserting or removing the module, unless the system is specifically configured for hot-swapping in a live environment.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for field inputs to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the DeltaV carrier to the cabinet chassis to maintain signal integrity and safety.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is fully seated in the carrier slot and the locking mechanism is engaged.\u003c\/li\u003e\n\u003cli\u003eHandle with care to prevent electrostatic discharge (ESD) damage; use a grounded wrist strap when handling electronic components.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate airflow within the cabinet to ensure the module operates within the specified temperature range (-40 to 70 deg C).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the VE4001S2T2B4 compatible with older M-Series systems?\u003c\/strong\u003e\u003cbr\u003eYes, this module is designed for compatibility with both DeltaV S-Series and M-Series automation platforms.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this module support redundancy?\u003c\/strong\u003e\u003cbr\u003eYes, the VE4001S2T2B4 supports redundant configurations when installed on a redundant terminal block, allowing for high-availability operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the 24 VDC excitation?\u003c\/strong\u003e\u003cbr\u003eThe 24 VDC excitation is provided by the module to detect the state of dry contacts (switches or relays) in the field, allowing the system to determine if the circuit is open or closed.\u003c\/p\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":50626768535804,"sku":"VE4001S2T2B4","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_c2d22dd1-32c1-4a2f-94b3-a3fcfaef05b4.jpg?v=1784875883","url":"https:\/\/www.electronicplc.com\/es\/products\/emerson-deltav-ve4001s2t2b4-discrete-input-module","provider":"Electronic PLC","version":"1.0","type":"link"}