Allen-Bradley/Rockwell Automation 1771-IFE field wiring arm

The Allen-Bradley 1771-IFE is a PLC5 analog input module that is compatible for installation with any 1771 I/O chassis. This module has Sixteen (16) Single-eneded channels or Eight (8) Differential input channels. Each channel are configurable for input Voltage and Current signal ranges of 1 to 5V dc, 0 to 5V dc, -5 to +5V, -10 to +10V dc, 0 to 10V dc, 4 to 20mA, 0 to 20mA, and 20 to +20mA. 

Technical specifications for 1771-IFE

ManufacturerRockwell Automation

BrandAllen-Bradley

Part Number/Catalog No.1771-IFE

I/O8 Differential or 16 Single-Ended

Module TypeAnalog Input

Chassis CompatibilityAny chassis

Channel Update/Resolution18 milliseconds/8; 36 milliseconds/16

Data FormatNatural Binary or BDC Scaling to +/- 9999

Resolution12-bit binary; 12 bits plus sign on bipolar ranges

Accuracy0.1% of full scale range @ 25oC

External Power RequiredNo

Internal Scan Rate12.5 ms for 8 differential inputs (no digital filtering) -add 2.12ms for filtering 25 ms for 16 single-ended input (no digital filtering) -add 4.24 for filtering

Voltage Range-10 to 10 Volts DC

Typical DC Signal Delay (On)10 milliseconds

Current Range-20 to 20 mA

Wiring Arm1771-WG

Typical AC Signal Delay (Off)24 milliseconds

Backplane Current750 miliAmperes External

Typical DC Signal Delay (Off)20 milliseconds

MountingRack Mountable

The Allen-Bradley 1771-IFE is a PLC5 Analog Input Module. This module interfaces analog inputs with PLC processors using block transfer programming. It uses a 16-bit resolution and performs the required analog-to-digital conversions and vice versa to interface analog signals with PLC data table values. If input communication is disrupted, it can respond automatically to the fault with the default user configuration. Thus, it provides a predictable and safe response to a fault and limits the extent of the fault. The 1771-IFE is compatible for use in various applications such as Temperature, Pressure, Level, Flow, and other applications. It contains Sixteen (16) single-ended or Eight (8) differential selectable inputs. It has Natural Binary or BCD scaling to a +/-9999 data format. It has a voltage range of -10 to 10 Volts DC and a current range of -20 to 20 mA. It has a backplane current load of 750 mA and a channel update time of 8 milliseconds for 8 channels, 36 milliseconds for 16 channels, and 12 bits plus sign resolution. The 1771-IFE has a maximum power dissipation of 2.5 Watts and a thermal dissipation of 8.52 BTU/hour. It comes with a 1771-WG wiring arm to replace the module, eliminating the need to disconnect wiring. It requires one slot for installation in an I/O chassis and keying bands for correct installation is between pins 10 and 12 for the lower connector and pins 24 and 26 for the upper connector. The 1771-IFE module contains a green RUN and a red FAULT indicator light on the front panel. It contains optoelectrical isolation to protect the system circuits from electrical transients. It also contains an input filtering feature to reduce electrical noise.