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1756-IF8I | Allen-Bradley ControlLogix Analog Isolated Input Module, 8-Point, 36-Pin
- Regular price
- $1,482.00
- Sale price
- $1,482.00
- Regular price
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Product Description P/N: 1756-IF8I
Description
The Allen-Bradley 1756-IF8I is a ControlLogix high-performance analog input module featuring eight individually isolated channels. Each channel supports voltage or current input modes with wide signal ranges and 24-bit Sigma-Delta conversion, delivering exceptional accuracy for demanding industrial measurement applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Series | ControlLogix |
| Part Number | 1756-IF8I |
| Product Type | Analog Input Module |
| Module Type | Isolated Analog Input |
| Channels | 8 individually isolated inputs |
| Input Modes | Voltage or Current (any combination) |
| Voltage Ranges | ±10.5 V, 0–10.5 V, 0–5 V |
| Current Range | 0–21 mA |
| Conversion Method | 24-bit Sigma-Delta |
| Resolution | Up to 1.49 µV/count (voltage), 2.99 nA/count (current) |
| Data Format | IEEE 32-bit floating-point |
| Backplane Current (5.1 V) | 200 mA |
| Backplane Current (24 V) | 150 mA (voltage/non-sourcing), 400 mA (sourcing mode) |
| Power Dissipation | Voltage mode: 4.6 W; Non-sourcing: 5.1 W; Sourcing: 7.3 W |
| Removable Terminal Blocks | 1756-TBNH, 1756-TBS6H |
| Enclosure | Open style |
| Isolation | Channel-to-channel electrical isolation |
| Manufacturer | Rockwell Automation |
Information About 1756-IF8I
The 1756-IF8I is part of the Allen-Bradley ControlLogix family, designed to handle high-accuracy analog input signals in demanding industrial applications. It provides eight isolated input channels, each configurable for current or voltage mode, and supports both 2-wire and 4-wire transmitters. With a 24-bit Sigma-Delta conversion method, it achieves resolutions as fine as 1.49 µV/count for voltage inputs and 2.99 nA/count for current inputs, far exceeding the accuracy of standard 13–16 bit modules. The module includes protective and diagnostic features such as overvoltage protection, short-circuit detection, temperature error monitoring, ramp rate alarms, and process alarms. It consumes 200 mA at 5.1 VDC and 150–400 mA at 24 VDC from the ControlLogix backplane, and data is processed in IEEE 32-bit floating-point format for compatibility with advanced control systems.
Key Features:
- Channel Capacity: Eight individually isolated channels configurable for voltage or current signals.
- Input Ranges: Accepts ±10.5 V, 0–10.5 V, 0–5 V, and 0–21 mA input signals for versatile process monitoring.
- Resolution: 24-bit Sigma-Delta conversion provides high accuracy with 1.49 µV/count for voltage and 2.99 nA/count for current.
- Data Format: Outputs measurements in IEEE 32-bit floating-point format for integration with advanced control systems.
- Transmitter Compatibility: Supports both 2-wire and 4-wire transmitters for flexible field device connections.
- Protective Features: Includes overvoltage protection, short-circuit detection, and thermal error handling.
- Diagnostic Functions: Built-in process alarms, ramp rate alarms, and module-level diagnostics for improved reliability.
- Power Consumption: Draws 200 mA at 5.1 VDC and 150–400 mA at 24 VDC from the backplane.
- Enclosure: Open-style design for installation within ControlLogix chassis.
The 1756-IF8I delivers the reliability and precision required for high-resolution analog measurement in ControlLogix automation systems.
Description
The Allen-Bradley 1756-IF8I is a ControlLogix high-performance analog input module featuring eight individually isolated channels. Each channel supports voltage or current input modes with wide signal ranges and 24-bit Sigma-Delta conversion, delivering exceptional accuracy for demanding industrial measurement applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Series | ControlLogix |
| Part Number | 1756-IF8I |
| Product Type | Analog Input Module |
| Module Type | Isolated Analog Input |
| Channels | 8 individually isolated inputs |
| Input Modes | Voltage or Current (any combination) |
| Voltage Ranges | ±10.5 V, 0–10.5 V, 0–5 V |
| Current Range | 0–21 mA |
| Conversion Method | 24-bit Sigma-Delta |
| Resolution | Up to 1.49 µV/count (voltage), 2.99 nA/count (current) |
| Data Format | IEEE 32-bit floating-point |
| Backplane Current (5.1 V) | 200 mA |
| Backplane Current (24 V) | 150 mA (voltage/non-sourcing), 400 mA (sourcing mode) |
| Power Dissipation | Voltage mode: 4.6 W; Non-sourcing: 5.1 W; Sourcing: 7.3 W |
| Removable Terminal Blocks | 1756-TBNH, 1756-TBS6H |
| Enclosure | Open style |
| Isolation | Channel-to-channel electrical isolation |
| Manufacturer | Rockwell Automation |
Information About 1756-IF8I
The 1756-IF8I is part of the Allen-Bradley ControlLogix family, designed to handle high-accuracy analog input signals in demanding industrial applications. It provides eight isolated input channels, each configurable for current or voltage mode, and supports both 2-wire and 4-wire transmitters. With a 24-bit Sigma-Delta conversion method, it achieves resolutions as fine as 1.49 µV/count for voltage inputs and 2.99 nA/count for current inputs, far exceeding the accuracy of standard 13–16 bit modules. The module includes protective and diagnostic features such as overvoltage protection, short-circuit detection, temperature error monitoring, ramp rate alarms, and process alarms. It consumes 200 mA at 5.1 VDC and 150–400 mA at 24 VDC from the ControlLogix backplane, and data is processed in IEEE 32-bit floating-point format for compatibility with advanced control systems.
Key Features:
- Channel Capacity: Eight individually isolated channels configurable for voltage or current signals.
- Input Ranges: Accepts ±10.5 V, 0–10.5 V, 0–5 V, and 0–21 mA input signals for versatile process monitoring.
- Resolution: 24-bit Sigma-Delta conversion provides high accuracy with 1.49 µV/count for voltage and 2.99 nA/count for current.
- Data Format: Outputs measurements in IEEE 32-bit floating-point format for integration with advanced control systems.
- Transmitter Compatibility: Supports both 2-wire and 4-wire transmitters for flexible field device connections.
- Protective Features: Includes overvoltage protection, short-circuit detection, and thermal error handling.
- Diagnostic Functions: Built-in process alarms, ramp rate alarms, and module-level diagnostics for improved reliability.
- Power Consumption: Draws 200 mA at 5.1 VDC and 150–400 mA at 24 VDC from the backplane.
- Enclosure: Open-style design for installation within ControlLogix chassis.
The 1756-IF8I delivers the reliability and precision required for high-resolution analog measurement in ControlLogix automation systems.
