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The Allen Bradley 1734-VHSC24 is a 24V DC Very High-Speed Counter module designed for distributed I/O systems. It is engineered to process high-frequency pulse signals from field devices such as encoders, sensors, and pulse generators with high precision and reliability.
This module is optimized for applications requiring accurate counting, position tracking, and speed measurement, especially in environments where fast signal acquisition is critical. It performs counting operations independently of the main controller, ensuring that high-speed signals are captured without data loss.
The 1734-VHSC24 is particularly suitable for modern automation systems where distributed control and real-time performance are essential.
This module is part of a flexible distributed I/O system that supports scalable and high-performance industrial automation.
| Parameter | Specification |
|---|---|
| Model | 1734-VHSC24 |
| Module Type | High-Speed Counter |
| Channels | 2 independent channels |
| Input Voltage | 24V DC |
| Input Signal Type | Digital Pulse / Encoder |
| Counting Modes | Up/Down, Quadrature, Pulse/Direction |
| Maximum Frequency | Up to 1 MHz |
| Input Current | Approx. 6–10 mA per channel |
| Resolution | 32-bit counter |
| Output Type | High-speed digital output |
| Isolation | Channel-to-backplane isolation |
| Bus Current | Approx. 85 mA @ 5V DC |
| Power Dissipation | Approx. 3 W |
| Mounting | DIN Rail |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Protection Rating | IP20 |
| Dimensions | Approx. 75 × 12 × 56 mm |
| Weight | ≈ 0.11 kg ( 0.11 ) |
The 1734-VHSC24 is designed to deliver high-speed signal processing performance.
These features ensure reliable operation in high-speed automation environments.
The module is widely used in industrial automation systems that require precise and fast signal processing.
Typical applications include:
It is particularly suitable for applications requiring high-speed counting and accurate feedback control.
Handles high-frequency signals with excellent accuracy and stability.
32-bit resolution ensures precise counting and measurement.
Supports multiple counting modes for various application requirements.
Processes signals locally, improving overall system efficiency.
Fits easily into distributed I/O systems with limited space.
| Model | Type | Channels | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1734-VHSC | High-Speed Counter | 2 | General Pulse Counting | 75 × 12 × 56 | 0.11 ( 0.11 ) |
| 1734-SSI | Encoder Interface | 1 | SSI Encoder Input | 75 × 12 × 56 | 0.10 ( 0.10 ) |
| 1734-IB8 | Digital Input | 8 | 24V DC Input | 75 × 12 × 56 | 0.10 ( 0.10 ) |
| 1734-OB8E | Digital Output | 8 | 24V DC Output | 75 × 12 × 56 | 0.05 ( 0.05 ) |
| 1734-AENTR | Ethernet Adapter | — | Network Communication | 75 × 54 × 56 | 0.14 ( 0.14 ) |
These modules can be combined to create a complete distributed automation system with communication and signal processing capabilities.
| Model | Type | Channels | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1756-EN2T | Communication | — | Ethernet Interface | 145 × 140 × 35 | 0.45 ( 0.45 ) |
| 1756-IB16 | Digital Input | 16 | 24V DC Input | 145 × 140 × 35 | 0.40 ( 0.40 ) |
| 1756-OB16E | Digital Output | 16 | 24V DC Output | 145 × 140 × 35 | 0.42 ( 0.42 ) |
| 1756-IF8 | Analog Input | 8 | Voltage/Current | 145 × 140 × 35 | 0.45 ( 0.45 ) |
| 1769-OB16 | Digital Output | 16 | 24V DC Output | 118 × 87 × 35 | 0.30 ( 0.30 ) |