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- Allen Bradley
- 1769-IF16C
- CompactLogix I/O Module
- USA
- 118 mm × 35 mm × 87 mm
- 0.281kg
- Xiamen, China
- New & In Stock
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Technical Report: 1769-IF16C CompactLogix 16-Channel Analog Current Input Module
1. Product Overview
The 1769-IF16C is a high-density analog input module designed for Compact I/O automation systems. It provides 16 single-ended current input channels and is used for converting industrial analog current signals into digital data that can be processed by a PLC controller.
This module is specifically designed for current signal acquisition, supporting standard industrial ranges such as 0–20 mA and 4–20 mA. It is widely used in process control and industrial automation systems where accurate analog measurement is required.
It belongs to the Compact I/O family and operates as a distributed input module within CompactLogix-based architectures.
2. Brand and Series Information
Brand: Industrial automation control platform ecosystem
Series: 1769 Compact I/O Series
Product Family: Analog Input Modules
Module Type: 16-Channel Current Analog Input Module
3. Product Function Description
The 1769-IF16C is responsible for acquiring and converting analog current signals.
Main functions include:
- Receiving 16 single-ended analog current inputs
- Supporting 0–20 mA and 4–20 mA industrial signal standards
- Converting analog signals into high-resolution digital values (16-bit)
- Providing electrical isolation between field devices and PLC backplane
- Filtering noise and improving signal stability
- Enabling precise process measurement and control
It is commonly used in systems requiring continuous monitoring of process variables such as pressure, flow, and level.
4. Technical Parameters
Electrical Specifications
| Parameter | Value |
|---|---|
| Number of Inputs | 16 single-ended channels |
| Input Signal Range | 0–20 mA, 4–20 mA |
| Full Scale Range | 0–21 mA / 3.2–21 mA |
| Backplane Current | 190 mA @ 5V DC |
| 24V DC Current | 70 mA |
| Power Dissipation | Up to 4.0 W |
| Resolution | 16-bit (sigma-delta conversion) |
| Input Impedance | 249 Ω |
Performance & Accuracy
| Parameter | Value |
|---|---|
| Conversion Type | Sigma-Delta ADC |
| Accuracy | ~0.5% full scale @ 25°C |
| Linearity | ~0.03% |
| Repeatability | ~0.03% |
| Module Error | ~1.25% |
| Common Mode Rejection | >60 dB |
Isolation & Protection
| Parameter | Value |
|---|---|
| Isolation Voltage | 500V AC / 710V DC (1 min test) |
| Working Voltage | 30V AC / 30V DC |
| Isolation Type | Channel-to-bus reinforced insulation |
| Protection Class | Industrial IEC reinforced class |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Dimensions (H × W × D) | 118 mm × 35 mm × 87 mm |
| Height | 118 mm |
| Width | 35 mm |
| Depth | 87 mm |
| Weight | ~0.281 kg |
| Mounting Type | DIN rail / panel mount |
| Slot Width | 1 slot |
Environmental Specifications
| Parameter | Value |
|---|---|
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5% – 95% non-condensing |
| Vibration Resistance | Industrial IEC standard |
| Shock Resistance | Industrial cabinet rated |
5. Product Advantages
1. High Channel Density
Provides 16 analog input channels in a compact single-slot design, reducing cabinet space requirements.
2. High-Resolution Measurement
16-bit conversion ensures accurate and stable analog signal processing.
3. Strong Industrial Noise Immunity
High common-mode rejection allows stable operation in electrically noisy environments.
4. Flexible Signal Support
Compatible with both 0–20 mA and 4–20 mA industrial standards.
5. Reliable Electrical Isolation
Protects PLC system from field-side electrical disturbances.
6. Modular System Integration
Fully compatible with Compact I/O architecture for scalable system design.
6. Application Areas
The 1769-IF16C is widely used in:
- Process automation systems
- Chemical and pharmaceutical production
- Water and wastewater treatment
- Oil and gas monitoring systems
- Food and beverage processing
- Industrial HVAC control systems
- Pressure and flow measurement systems
- Large-scale manufacturing automation
It is especially suitable for environments requiring continuous analog signal monitoring.
7. Recommended Models (Same Series / Related Modules)
| Model | Type | Key Parameters | Application |
|---|---|---|---|
| 1769-IF8 | Analog Input Module | 8-channel current/voltage input | Smaller process systems |
| 1769-IA16 | AC Digital Input Module | 16-point 120V AC input | Discrete signal monitoring |
| 1769-IQ16 | DC Digital Input Module | 16-point 24V DC input | Sensor systems |
| 1769-OF2 | Analog Output Module | 2-channel analog output | Process control |
| 1769-HSC | High-Speed Counter Module | Up to 1 MHz counting | Motion and encoder systems |
8. Other Popular Models (Same Platform – Widely Used)
| Model | Type | Key Parameters | Application |
|---|---|---|---|
| 1769-L33ER | PLC Controller | EtherNet/IP CPU, integrated control | Machine automation |
| 1769-L36ERM | PLC Controller | High-speed motion controller | Advanced automation |
| 1769-AENTR | Ethernet Adapter | Dual-port EtherNet/IP communication | Distributed I/O systems |
| 1769-SDN | DeviceNet Scanner | Fieldbus master module | Legacy network integration |
| 1769-ASCII | Serial Communication Module | ASCII protocol interface | Barcode and printer systems |
9. System Role Summary
The 1769-IF16C functions as a high-precision analog signal acquisition module within Compact I/O systems. It bridges industrial analog field signals and PLC digital processing systems.
Its importance lies in enabling accurate, stable, and high-density analog data acquisition in modern automation architectures.
10. Summary
The 1769-IF16C is a 16-channel analog current input module designed for industrial process monitoring and control applications. With its high resolution, strong isolation, and stable performance, it is widely used in demanding industrial environments.
Its core strengths include high channel density, accurate measurement capability, strong noise immunity, and seamless integration into Compact I/O systems.