Allen-Bradley|1756-IF8H| 8-channel differential voltage/current input module
Description
The Allen Bradley 1756-IF8H is an 8-channel differential voltage/current input module with integrated HART communication, designed for the ControlLogix architecture. It supports various input ranges and provides high-resolution analog signal processing with advanced noise rejection.
Features
- 8 Differential Inputs: Supports both voltage (±10V, 0…5V, 1…5V, 0…10V) and current (0…20 mA, 4…20 mA) signals.
- Integrated HART Communication: One HART modem per module for enhanced data acquisition.
- High Resolution: 16 to 21 bits for precise measurements.
- Advanced Noise Rejection: Superior normal and common mode noise rejection.
Technical Specifications
General Specifications
- Model Number: 1756-IF8H
- Inputs: Eight differential voltage or current inputs
- Input Range: ±10V, 0…5V, 1…5V, 0…10V, 0…20 mA, 4…20 mA
- Resolution: 16 to 21 bits
- Backplane Power: 4.77 W total, 3.21 W (voltage), 4.01 W (current)
- Thermal Dissipation: 11.0 BTU/hr (voltage), 13.7 BTU/hr (current)
Performance Specifications
- Normal Mode Noise Rejection: > 80 dB @ 50/60 Hz
- Common Mode Noise Rejection: > 100 dB @ 50/60 Hz
- Calibrated Accuracy: Voltage: Better than 0.05% of range; Current: Better than 0.15% of range
- Offset Drift: 90 µV/°C
- Gain Drift: Voltage: 10 ppm/°C; Current: 20 ppm/°C
Environmental Specifications
- Operating Temperature: 0°C to +60°C
- Nonoperating Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% noncondensing
- Overvoltage Protection: Voltage: 30V DC; Current: 8V DC
Allen-Bradley|1756-IF8H| 8-channel differential voltage/current input module


Allen-Bradley|1756-IF8H| 8-channel differential voltage/current input module
Description
The Allen Bradley 1756-IF8H is an 8-channel differential voltage/current input module with integrated HART communication, designed for the ControlLogix architecture. It supports various input ranges and provides high-resolution analog signal processing with advanced noise rejection.
Features
- 8 Differential Inputs: Supports both voltage (±10V, 0…5V, 1…5V, 0…10V) and current (0…20 mA, 4…20 mA) signals.
- Integrated HART Communication: One HART modem per module for enhanced data acquisition.
- High Resolution: 16 to 21 bits for precise measurements.
- Advanced Noise Rejection: Superior normal and common mode noise rejection.
Technical Specifications
General Specifications
- Model Number: 1756-IF8H
- Inputs: Eight differential voltage or current inputs
- Input Range: ±10V, 0…5V, 1…5V, 0…10V, 0…20 mA, 4…20 mA
- Resolution: 16 to 21 bits
- Backplane Power: 4.77 W total, 3.21 W (voltage), 4.01 W (current)
- Thermal Dissipation: 11.0 BTU/hr (voltage), 13.7 BTU/hr (current)
Performance Specifications
- Normal Mode Noise Rejection: > 80 dB @ 50/60 Hz
- Common Mode Noise Rejection: > 100 dB @ 50/60 Hz
- Calibrated Accuracy: Voltage: Better than 0.05% of range; Current: Better than 0.15% of range
- Offset Drift: 90 µV/°C
- Gain Drift: Voltage: 10 ppm/°C; Current: 20 ppm/°C
Environmental Specifications
- Operating Temperature: 0°C to +60°C
- Nonoperating Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% noncondensing
- Overvoltage Protection: Voltage: 30V DC; Current: 8V DC