Description
Product Description
Overview
The Emerson VE4002S2T2B8 is a high-density 32-channel discrete output module designed for the DeltaV S-series Distributed Control System (DCS). This card provides reliable 24V DC high-side switching for controlling field devices and is commonly paired with a 32-channel discrete output terminal block to simplify wiring. Built for high-speed digital performance, it ensures consistent control even in challenging industrial environments.
Key Features
High-Density Channel Design
Supports 32 discrete output channels on a single card, optimizing cabinet space while maximizing I/O capacity for complex control applications.
Hot-Swappable Module
Can be installed or replaced without powering down the system, maintaining continuous operation and minimizing downtime.
High-Speed Digital Processing
Enables precise control and fast response, making it suitable for real-time digital operations and Sequence of Events (SOE) recording.
Rugged Industrial Construction
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G3 Conformal Coating: Protects circuitry from dust, moisture, and corrosive gases (ISA 71.04-1985 Severity Level G3).
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Shock and vibration resistant to withstand harsh plant conditions.
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Wide operating range: -40°C to +70°C.
Safe and Reliable Operation
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Optical isolation per channel, tested up to 1500 V.
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Built-in fault detection and diagnostic LEDs for rapid troubleshooting.
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Supports up to 1.0 A per channel with a maximum of 3.0 A per interface.
Seamless Integration
Designed for S-series Horizontal Carriers, the card connects easily to compatible terminal blocks and ensures field wiring does not need to be disconnected when replacing the module.
Technical Specifications
| Feature |
Specification |
| Product Type |
Discrete Output Card |
| Manufacturer |
Emerson |
| Model Number |
VE4002S2T2B8 |
| Channels |
32 |
| Output Voltage |
24V DC, High-Side Switching |
| Output Current |
1.0 A per channel, 3.0 A max per interface |
| Off-State Leakage |
≤1.2 mA |
| Isolation |
Optical isolation per channel, up to 1500 V |
| Local Bus Current |
Typical 100 mA at 12V DC, Max 150 mA |
| Field Circuit Power |
Max 3.0 A at 24V DC |
| Operating Temperature |
-40°C to +70°C |
| Storage Temperature |
-40°C to +85°C |
| Relative Humidity |
5% to 95%, non-condensing |
| Protection Rating |
IP20 |
| Shock Resistance |
10 g half-sine wave, 11 ms |
| Vibration Resistance |
1 mm peak-to-peak (5–16 Hz); 0.5 g (16–150 Hz) |
| Diagnostic LEDs |
Power and Channel Status Indicators |
| Mounting |
DeltaV S-series Horizontal Carrier |
| Compliance |
CE, UL, CSA, ATEX/FM |
Applications
Ideal for controlling solenoids, relays, alarms, and other 24V DC field devices in process plants, power generation, and complex industrial automation setups. Supports high-speed event monitoring and reliable discrete device control.
FAQ
Q: Can this card be replaced without shutting down the system?
A: Yes, it is hot-swappable and can be replaced while the DeltaV system remains operational.
Q: What is the maximum current per channel?
A: Each channel supports up to 1.0 A, with a maximum of 3.0 A per interface.
Q: Is the card protected against harsh environments?
A: Yes, it features G3 conformal coating, IP20 protection, and shock/vibration resistance suitable for industrial conditions.
Q: What terminal block should I use?
A: A 32-channel discrete output terminal block designed for Series 2 Plus systems is recommended for easy wiring and modular replacement.
