1769-IF8 is a compact I/O analog input module manufactured by Allen Bradley. This module has eight differential input channels, and its voltage range includes ± 10 V DC, 0 to 10 V DC, 0 to 5 V DC, and 1 to 5 V DC, while the current range is 0 to 20 mA and 4 to 0 mA.
In terms of current consumption on the backplane, 1769-IF8 consumes 5mA at 120V DC and 24mA at 70V DC. When working, it can emit 3.64 watts of heat. This module uses Delta- Σ An analog-to-digital converter with a resolution of 16 bit unipolarity or 15 bit plus sign, and with channel response speed dependent on the filter/configuration.
In addition, the common offset voltage range of 1769-IF8 is ± 10 V DC per channel, and the common mode rejection ratio is greater than 60 decibels at 60 to 50 Hz. In terms of accuracy, the overall accuracy of the analog input module for voltage signals is ± 0.2%, for current signals it is 0.35%, and for voltage drift it is ± 0.003%, and for current signals it is ± 0.0045% per degree Celsius. Meanwhile, it also has an input nonlinearity of ± 0.03% and repeatability of ± 0.03%.
In terms of fault diagnosis, 1769-IF8 has an indicator light to display the module's fault status. It can also automatically self diagnose over range or under range through bit reports and process alarms. On the input terminal, it has a maximum continuous input terminal overload of ± 1 V DC at a voltage of 30.0 mA, and an overload of ± 6 mA at ± 32.7 V DC.
In addition, the design of the 1769-IF8 module enables it to be compatible with the 1769 CompactLogix chassis or MicroLogix 1500 controller, suitable for field devices sending 0-21mA and ± 10VDC analog signals. Meanwhile, the operating temperature range of the module is between 0 and 60 degrees Celsius (32 to 140 degrees Fahrenheit), with a relative humidity limit of 95% for condensation. It weighs approximately 450 grams (0.99 pounds) and measures approximately 118 x 87 x 52.5 millimeters in size.
In summary, 1769-IF8 is a compact I/O analog input module with comprehensive functionality and stable performance, suitable for various applications in industrial automation.
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