Module Description
The Allen-Bradley 1756-IF8 is a non-isolated 8-channel analog input module designed for ControlLogix controllers. It supports both voltage and current signal inputs, enabling accurate and flexible signal processing for industrial systems. Moreover, its Sigma-Delta ADC architecture ensures precise data acquisition with minimal noise.
The 1756-IF8 integrates seamlessly into automation systems that require continuous monitoring of process variables, such as pressure, temperature, and flow. With flexible wiring options and superior filtering capabilities, it delivers stable and high-resolution measurement performance.
Functional Highlights
This module provides advanced analog input flexibility and efficient signal handling for real-time control systems. Each channel can be configured individually for voltage or current modes, allowing users to adapt to varying process requirements.
In addition, it includes diagnostic functions such as wire-off detection, under-range/over-range alarms, and digital noise filtering, enhancing system reliability and minimizing downtime.
Key Benefits:
✔ Supports voltage (±10VDC, 0–10VDC, 0–5VDC) and current (0–20mA) inputs
✔ Provides 15–16-bit resolution for precise measurement accuracy
✔ Offers single-ended, differential, and high-speed differential wiring options
✔ Real-Time Sampling (RTS) for synchronous data updates
✔ Configurable process alarms for abnormal condition detection
✔ Compatible with 1756-TBCH and 1756-TBSH terminal bases
Technical Specifications
| Specification | Details |
|---|---|
| Input Channels | 8 analog inputs |
| Supported Signals | ±10VDC, 0–10VDC, 0–5VDC, 0–20mA |
| Resolution | 15–16 bits |
| Conversion Type | Sigma-Delta ADC |
| Data Format | Integer or IEEE 32-bit Floating Point |
| Backplane Power | 5V DC @ 150 mA, 24V DC @ 40 mA |
| Power Dissipation | 1.73 W (Voltage Mode), 2.33 W (Current Mode) |
| Temperature Range | 0–60°C Operating, -40–85°C Storage |
| Humidity | 5–95% Non-Condensing |
| Compatible Terminals | 1756-TBCH, 1756-TBSH |
| Update Rate | 5–488 ms (depending on wiring mode) |
Furthermore, the 1756-IF8 offers configurable channel filters and scan timing, making it suitable for both high-speed and high-accuracy measurement applications.
System Integration
The 1756-IF8 connects effortlessly to ControlLogix PACs and communicates with SCADA, HMI, and distributed control systems. For instance, it can receive analog data from field transmitters and send it to the controller for PID regulation or trend analysis.
Therefore, it is ideal for process control, machine automation, and energy monitoring environments where reliability and accuracy are critical.
Common Applications:
- Process Variable Measurement: Pressure, Flow, Level, Temperature
- Industrial Machinery Monitoring
- Power Generation and Utility Systems
- SCADA and Data Acquisition Systems
Details
| Weight | 0.35 kg |
|---|
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