Emerson VE4001S2T2B4 DeltaV S‑Series 32‑Channel 24VDC Discrete Input Card

Product Description

The Emerson VE4001S2T2B4 is a high-density discrete input card for DeltaV S‑Series traditional I/O subsystem. It supports 32 channels of 24VDC dry contact digital input signals, used to collect on/off status from field switches, relay contacts and proximity sensors. It adopts optical isolation, conformal coating and G3 corrosion resistance design, supports hot swap and redundant terminal block configuration. It is widely used as spare part for petrochemical, power and refining DCS maintenance and system upgrade.

Product Functions

• 32-channel 24VDC dry contact discrete input for field switch and contact status acquisition
• Opto-isolation for each channel to suppress field noise and prevent interference
• Built-in self-diagnosis to detect open circuit, short circuit and channel fault status
• Hot-swap support, card replacement without interrupting DeltaV control node operation
• Support redundant terminal block setup for high-reliability process interlock applications
• Onboard LED indicators for quick status check of card and each channel

Application Scenarios

• Petrochemical, refinery and natural gas DeltaV distributed control systems
• Thermal power plant boiler, turbine and auxiliary interlock monitoring cabinets
• Chemical, pharmaceutical and water treatment continuous production safety interlock loops
• Offshore platform and pipeline process status monitoring and alarm systems
• Spare replacement and repair of existing Emerson DeltaV S‑Series I/O racks

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