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- Allen Bradley
- 1746SC-CTR8
- PLC Module/Rack
- USA
- 133 × 108 × 38 mm
- 0.35kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Allen Bradley 1746SC-CTR8 — Detailed Technical Overview
1. Product Introduction
The Allen Bradley 1746SC-CTR8 is a high-density counter and pulse input module designed for use in modular PLC systems based on the SLC 500 platform. It is an enhanced version of multi-channel counting modules, offering more input channels and expanded functionality for complex measurement tasks.
This module is engineered to process high-speed pulse signals from field devices such as encoders, flowmeters, proximity switches, and tachometers. With eight independent input channels, it allows simultaneous monitoring of multiple signals within a single module, improving system efficiency and reducing hardware footprint.
Installed directly into the PLC rack, the module communicates through the backplane and provides real-time counting, rate measurement, and signal processing. Its design emphasizes precision, flexibility, and reliability in demanding industrial environments.
2. Product Parameters
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 1746SC-CTR8 |
| Series | SLC 500 |
| Module Type | High-Speed Counter / Pulse Input Module |
| Number of Channels | 8 |
| Input Type | Counter / Encoder / Pulse / Flow |
| Input Voltage | 5V / 12V / 24V DC (typical) |
| Input Voltage Range | Approx. 5–24 V DC |
| Maximum Input Frequency | Up to 50 kHz (per channel typical) |
| Counter Resolution | Up to 24-bit (mode dependent) |
| Counting Modes | Up/Down, Rate, Pulse accumulation |
| Accuracy | ±1 count |
| Minimum Pulse Width | Approx. 8 μs |
| Input Impedance | Approx. 20–30 kΩ |
| Update Time | Approx. 4–6 ms |
| Power Consumption | < 3 W |
| Isolation | Channel-to-backplane isolation |
| Status Indicators | Channel status LEDs |
| Operating Temperature | 0 to 60°C |
| Installation Type | Rack-mounted |
| Dimensions (mm) | 133 × 108 × 38 |
| Weight (kg) | 0.35 kg |
3. Product Applications
The 1746SC-CTR8 is designed for applications requiring multi-point high-speed counting and measurement.
Typical applications include:
- Multi-line conveyor monitoring
- Flow measurement across multiple channels
- Packaging systems with multiple counting points
- Encoder feedback for multi-axis systems
- Production line tracking and synchronization
- Speed monitoring of multiple rotating devices
Its eight-channel design makes it especially suitable for systems that require centralized data acquisition from multiple sensors.
4. Product Advantages
High Channel Density
Provides eight input channels in a single module, reducing rack space usage.
High-Speed Capability
Supports fast pulse signals, enabling accurate monitoring of dynamic processes.
Flexible Signal Handling
Compatible with a wide range of input devices including encoders and flowmeters.
Accurate Measurement Performance
Ensures precise counting and rate calculation across all channels.
Efficient System Integration
Reduces the need for multiple modules, simplifying wiring and system design.
Reliable Industrial Operation
Designed to maintain stable performance under electrical noise and varying temperatures.
5. Brand Information
Allen Bradley is widely recognized in industrial automation for producing PLC systems, control modules, and power solutions.
Its products are used across manufacturing, infrastructure, and process industries, known for reliability and long-term operational stability.
6. Product Series
- Series Name: SLC 500
- Category: Special Function Module (High-Speed Counter / Pulse Input)
The SLC 500 series is a modular PLC platform that supports flexible system expansion. It includes digital, analog, and specialty modules designed for a wide range of industrial control applications.
7. Recommended Models (Same Series / Related)
Related Models Table
| Model | Function | Channels | Input Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746SC-CTR4 | Counter Module | 4 | Pulse / Encoder | 133 × 108 × 38 | 0.3 kg |
| 1746-HSCE | High-Speed Counter | 2 | Encoder | 145 × 35 × 130 | 0.3 kg |
| 1746-HSTP1 | Stepper Controller | 1 Axis | Pulse Control | 145 × 35 × 130 | 0.35 kg |
| 1746-NI4 | Analog Input | 4 | Voltage/Current | 145 × 35 × 130 | 0.25 kg |
| 1746-OW16 | Digital Output | 16 | Relay Output | 145 × 35 × 130 | 0.3 kg |
8. Recommended Popular Models (Same Brand)
Popular Models Table
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|---|---|---|---|---|---|
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