1771-IFE Product datasheet
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Model number: |
1771-IFE |
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Module Type： |
Analog Input Module |
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Manufacture: |
Allen Bradley |
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Condition： |
Brand New |
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Range of Product: |
Allen Bradley |
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Lead time： |
In Stock |
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Weight: |
0.6 kg |
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HS CODE： |
8537101190 |
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Dimension: |
2.9 x19.3x25.4cm |
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MOQ: |
1 |
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Product Origin: |
USA |
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System： |
PLC |
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Discontinued on: |
Active |
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Communication Service: |
Ethernet router |
1771-IFE Functional Description
The 16 or 8-Point Analog Input Module AB 1771-IFE is a 16-bit resolution analog input module designed for PLC-5 control systems, providing reliable signal conversion between field devices and processor data tables. This versatile module supports 16 single-ended or 8 differential inputs, accommodating voltage (±10V DC) and current (±20mA) signals, making it ideal for process monitoring in temperature, pressure, flow, and level applications. With optically isolated circuits and digital filtering, the PLC Module Allen-Bradley 1771-IFE ensures noise immunity and stable signal processing in industrial environments.
Featuring 12-bit plus sign resolution, the 1771-IFE Analog I/O modules Rockwell offers scaling options in Natural Binary or BCD (±9999 format) for precise analog-to-digital conversion. Its configurable sampling rate (8ms for 8 channels, 36ms for 16 channels) minimizes signal fluctuations, while user-defined fault responses ensure safe operation during communication failures. The module’s 1771-WG wiring arm allows hassle-free replacement without disconnecting field wiring, enhancing maintenance efficiency.
The 171771-IFE Allen Bradley In Stock occupies a single slot in 1771 I/O chassis, with keying bands (pins 10-12 and 24-26) preventing incorrect installation. It requires 750mA backplane current and dissipates 2.5W (8.52 BTU/hour). Front-panel RUN (green) and FAULT (red) LEDs provide real-time status monitoring, while bidirectional block transfer communication ensures seamless data exchange with the PLC-5 processor.
Widely used in industrial automation, the Rockwell 1771-IFE Series A Manual converts process variables (e.g., pH, vibration, displacement) into scaled digital values for PLC data tables. Its flexible signal ranges (1-5V, 4-20mA, etc.) and programmable filtering make it adaptable to diverse sensor inputs. Compatible with all PLC-5 chassis, this module remains a robust solution for legacy system upgrades and precision process control.
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Functional Overview of the Analog Input Module's Block Transfer Operation
The analog input module operates as an intelligent block transfer device designed to seamlessly interface analog input signals with Allen-Bradley programmable controllers equipped with block transfer functionality. This sophisticated module executes block transfer programming to efficiently transfer multiple input data words from its internal memory to a predefined section of the processor's data table within a single scan cycle, while simultaneously moving configuration parameters from the processor's data table back to the module's memory. As a space-efficient single-slot solution, the module operates without requiring an external power supply, though users must provide loop power when utilizing passive transducers for signal input. Following each comprehensive scan of all connected analog inputs, the module performs precise analog-to-digital conversion, transforming the measured signals into specified digital formats before making them available for transfer to the processor's data table upon request. The system intelligently disables block transfer functionality during active input scanning operations, ensuring data integrity by maintaining a minimum interval between successive block transfer read operations that corresponds exactly to the complete input update cycle time for each individual analog input module in the system. This design guarantees synchronized and reliable data acquisition while maintaining optimal system performance.
