The Emerson VE4001S2T2B1 (KJ3201X1-BA1) is a DeltaV Series 2 discrete input module designed for accurate acquisition of 24 V DC digital signals in industrial automation systems. It is widely used to monitor ON/OFF field device states such as switches, limit switches, relay contacts, pushbuttons, alarm circuits, and safety interlocks.
Built for continuous industrial operation, this module provides stable signal detection, strong electrical isolation, and integrated diagnostics, making it a dependable component in Emerson DeltaV distributed control systems across process industries.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Emerson |
| Model | VE4001S2T2B1 |
| Module Part Number | KJ3201X1-BA1 |
| Product Type | Discrete Input Module (DI) |
| System Platform | DeltaV Series 2 I/O |
| Input Channels | 8 channels |
| Input Type | 24 V DC dry contact / digital input |
| Field Voltage | 24 V DC nominal |
| Signal Function | ON/OFF status monitoring |
| Response Time | ≤ 1 ms (typical) |
| Isolation | Optical / channel-to-system isolation |
| Diagnostics | Channel status and fault detection |
| Mounting Type | DeltaV I/O carrier mounted |
| Operating Temperature | -40°C to +70°C |
| Humidity Range | 5% to 95% non-condensing |
| EMC Protection | Industrial-grade noise immunity |
Physical Dimensions & Weight
| Parameter | Specification |
|---|---|
| Dimensions (H × W × D) | 105 × 125 × 42 mm |
| Weight | Approx. 0.20–0.40 kg |
Recommended Related Models
The VE4001S2T2B1 is commonly used together with:
- Emerson VE3006 MD Plus Controller Module
- Emerson VE3008 MQ Controller Module
- Emerson VE4003S2B1 Analog Input Module
- Emerson VE4005S2B1 Analog Output Module
- Emerson VE4033S2B1 Redundant I/O Module
- Emerson VE4001S2T2B4 High-Density Input Module
- Emerson VE4001S2T2B5 Extended Input Variant
- Emerson SE4053S2B11 Analog Input Card
- Emerson SE4055S2B5 Analog Output Card
- Emerson KJ3241X1-BA1 Communication Module
Popular Emerson DeltaV Modules
Commonly deployed DeltaV Series 2 components include:
- VE3006 MD Plus Controller
- VE3008 MQ Controller
- VE4003S2B1 Analog Input Module
- VE4005S2B1 Analog Output Module
- VE4001S2T2B1 Discrete Input Module
- VE4001S2T2B4 / B5 Input Variants
- VE4033S2B1 Redundant I/O Module
- KJ3203X1-BA1 Analog Output Module
- KJ3241X1-BA1 Serial Interface Module
