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1771-IFE
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Product Description
The 1771-IFE module is a PLC 5 analog input module designed by Allen-Bradley/Rockwell Automation. The module is used with programmable logic controllers and it is compatible with any 1771 I/O chassis.Other Available Revisions for the 1771-IFE 1771-IFE//A1771-IFE//B1771-IFE//C
Common misspellings:
- l771-IFE
- 177l-IFE
- 1771-1FE
- 1771-lFE
- 1771IFE
The 1771-IFE is an Allen-Bradley module. It is a PLC-5 Analog input module with 16 single-ended or 8 differential 12-bit inputs. The 1771-IFE input module is located in the 1771 I/O rack-1 slot and where the default input type is set as the voltage but it can be changed to current using the configuration plug. The nominal voltage input ranges for 1771-IFE module are +1 to +5V DC, 0 to +5V DC, -5 to +5V DC, -10 to +10V DC, and 0 to +10V DC. The nominal current input for 1771-IFE input module ranges are +4 to +20mA, 0 to +20mA, and -20 to +20mA. The 1771-IFE has a resolution of 12-bit binary and of 12 bits plus sign on the bipolar ranges. The 1771-IFE module comes with a 1771-WG wiring arm.
The 1771-IFE input module belongs in the C series and hence is different from series A or B. For instance, the 1771-IFE module has 6 bits or diagnostic information, and this represents 6 possible faults. The 1771-IFE is also able to return input data both below and above the range end points while at the same time allowing default scaling with both the maximum and minimum scaling vales as zero. However, the 1771-IFE has no scaling error that will be reported while it is being used. The maximum block transfers for the 1771-IFE are about 22 words in length for the BTR and 39 words for the BTW. The difference is due to auto calibration in the system. 1771-IFE input module is not compatible with 1771-AL local adapter. With regards to compatibility, 1771-IFE input module can work with any Allen-Bradley 1771 I/O chassis.
Technical Specifications for 1771-IFE
| Manufacturer | Allen-Bradley / Rockwell Automation |
|---|---|
| Series | PLC 5 |
| Part Number | 1771-IFE |
| Product Type | Input Module |
| Inputs per Module | 16 single-ended inputs, 8 differential low-level inputs |
| Nominal Input Voltage Range | 0 to 5 Volts DC, 0 to 10 Volts DC |
| Nominal Input Current Range | 0 to 20 milliamps |
| Resolution | 12-bit binary, 12-bits plus sign on bipolar ranges |
| Isolation Voltage | +/-1500 Volts |
| Maximum Power Dissipation | 3.75 Watts |
About 1771-IFE
The analog input module labeled with the catalog number 1771-IFE is manufactured by Allen-Bradley/Rockwell Automation. The input module is part of the 1771 line in the PLC 5 series and it can be fitted onto any 1771 I/O chassis. The module provides 16 single-ended inputs and 8 differential lo-level inputs. The 1771-IFE analog input module is made to be located on the 1771 I/O rack and it needs only a single slot for installation. The unit has a nominal input voltage range of 0 to 5 Volts DC or 0 to 10 Volts DC. In addition to that, the nominal input current range for this module is 4 to 20 milliamps, 0 to 20 milliamps, -20 to 20 milliamps.The 1771-IFE module has an accuracy rating of 0.1% of the full-scale range at the specified operating temperature and it has a 12-bit binary resolution. The internal scan rate of the module is 12.5 milliseconds for the 8 differential inputs and 25 milliseconds for the 16 single-ended inputs. The transient isolation voltage is 1500 Volts and the module provides input overvoltage protection for 200 Volts in the voltage mode and for 8 Volts in the current mode. The 1771-IFE module also provides 30 milliamps of input overcurrent protection. The common mode voltage of the module is +/-14.25 Volts and the input impedance is 100 megaohms for voltage ranges and 250 Ohms for current ranges. The 1771-IFE module has a common mode rejection of 80 decibels and current requirements of 0.75 Amps at 5 Volts from the I/O chassis backplane. The maximum power dissipation of the module is 3.75 Watts while the maximum thermal dissipation rating is 12.8 BTU per hour.
