Product Specification
| Manufacturer | Allen Bradley |
| Product No. | 1771-IL |
| Type | Analog Input Module |
| Number of Inputs & Outputs | 8 Isolated (1000 Volt) Differential |
| Channel Update/Resolution | 500 ms/8 channels |
Resolution | 16-bit binary over full range |
Backplane Current | 1.3 Amperes |
Current Range | -20 to 20 mA |
| Voltage Range | -10 to 10 Volts DC |
| Slot Width | 1 Slot |
| Internal Scan Rate | 50 milliseconds for 8 channels |
Product feature
1
Maximizes Uptime & Availability: By offering a fail-safe communication route, the 1771-NC6-A dramatically reduces the risk of system downtime caused by cable faults, thus increasing overall system availability.
2
Ensures System Redundancy: Its primary function is to provide a redundant communication path for remote I/O links, ensuring that if one communication cable fails, the backup automatically takes over.
3
Reliable Connectivity for Remote I/O: Crucial for maintaining continuous communication between the PLC-5 processor and remote I/O racks, particularly in critical applications where uninterrupted data exchange is vital.
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Allen Bradley 1771-IL Details And Product Images
The Allen-Bradley 1771-IL is an analog input module with Eight (8) fully isolated differential input channels. This module belongs to the legacy PLC5 Programmable Logic Controller (PLC) platform that is manufactured by Allen-Bradley. Once an analog input signal is received, the 1771-IL converts the signal to 0000 to +409510 for unipolar ranges (0 to 5V, +1 to +5V, 0 to +20mA, and +4 to +20mA) and -409510 to 409510 for bipolar ranges +5V, +10V, +20mA input ranges. Unipolar refers to a value where counting start at Zero (0). Bipolar refers to a value wherein the maximum positive number has a negative complement. Basically, a unipolar number has no sign while a bipolar number has a sign. This module features 16-bit binary over full range resolution. The Typical accuracy for Voltage is - 0.01% of full-scale range @ 25 Deg. Celsius while Maximum resolution is 0.05% of full-scale range @ 25 Deg. Celsius. For Current, Typical resolution is 0.06% of full- scale range @ 25 Deg. Celsius while the Maximum resolution is 0.1% of full scale range @ 25oC (Includes 0.05% when using internal current resistor) |  |
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| Allen Bradley | 1771-NC6/A 1771-NC6/A | 1771-NC6/A |
| Allen Bradley | 1771-NC6/A 1771-NC6/A | AB 1771-NC6-A |
| Allen Bradley | AB 1771-IL AB 1771-IL 1771/IL | 1771/IL 1771/IL 1771/IL |
| Allen Bradley | AB 1771-IL AB 1771-IL 1771/IL | 1771/IL 1771/IL 1771/IL |
| Allen Bradley | AB 1771-IL AB 1771-IL 1771/IL | AB 1771-NC6-A |
| Allen Bradley | AB 1771-IL AB 1771-IL 1771/IL | 1771/IL 1771/IL 1771/IL |
| Allen Bradley | Allen Bradley 1771-IL AB 1771-IL | Allen Bradley 1771/IL |
| Allen Bradley | Allen Bradley 1771-IL AB 1771-IL | Allen Bradley 1771/IL |
| Allen Bradley | Allen Bradley 1771-IL AB 1771-IL | Allen Bradley 1771/IL |
| Allen Bradley | Allen Bradley 1771-IL AB 1771-IL | Allen Bradley 1771/IL |
| Allen Bradley | Allen Bradley 1771-IL AB 1771-IL | Allen Bradley 1771/IL |
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