PDF Electric and Supply



Buy Now1771-IF
1771-IF Wiring

Rated 4.3/5 based on 6 ratings.
  • 1771-IF
  • 1771-IF Wiring
PDF Electric & Supply Company is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.


The Allen-Bradley 1771-IF Analog Input Module Assembly (Series B) is a 12-bit module which may be used alone or with an input expander module which provides an expansion to the PC system’s analog input capacity. The economy of adding expander modules is in the increased number of slots because operators can use as many as 8 expander modules to give them a total of 64 slots on their I/O. These expander modules are from catalog numbers; 1771-E1, E2, and E3.


The 1771-IF series B analogue input module 12-bit assembly measures analog signals at its inputs and then converts that data into a 3-digit BCD or into a 12-bit binary value. It communicates with the analog input module that is located on the I/O chassis backplane. The binary value or BCD from each of the channels is contained in a 16-bit input data word stored in the module’s memory. In addition, operators may use the remaining 4 bits for diagnostic information after the first nominal 12-bit value.


The 1771-IF module contains the units of a 12-bit 1771-IFC input module and two 1771-WB field wiring arms. It bears 8-single ended input channels with each module having the same current or voltage range. To use the single-transfer programming, the transmitter mode switch needs to be set to single-transfer mode. There is a block transfer program which moves all words of the 8 channels from the 1771-IF module’s memory to a designated area in the data table in just one scan. Using block transfer means that the module switch needs to be set to the block transfer mode.


In its voltage mode, the 1771-IF module has over-voltage protection and it has a continuous current limit in the current mode. Should these limits be exceeded, the module would be damaged. Fortunately, 1500V opto-electrical isolation protects the system from the damage that arises from over-voltage at the inputs of the modules. The 1771-IF series B Analog Input Module assists with fault diagnostics which it detects on power up. Once a fault is detected, the module ceases all communication to the processor and only resumes once the fault has been corrected.

Other Automation PLC-5

SKU 2171121  UPC 0256600768066

Input Analog Module 1771IF AB PLC5

Troubleshooting and Product Information for 1771-IF

Download product information, troubleshooting guides and operation manuals to get your PLC operational.

Other Automation
PLC-5 1771-IF
Weight: 2 Lbs
Dimensions: 10"x12"x2"In
Call Now
Ships Today In Stock, Ships Today
In Stock
Call Now 1-800-360-6802
Weight: 2 Lbs
Dimensions: 10"x12"x2"In
In Stock
Ships Today
FAST Quote

Other 1771-IF

Available Revisions:

Confirm Your Revision Number

1771-IF , CIM1771-IF

    Need To Order A Specific Revision?

    Give us a call at 1-800-360-6802 or 1-919-535-3180.

    We can help you with your Revision specific needs.

    Free Overnight delivery on orders over $500!

    What is New Surplus?

    These “New Surplus” units are a great cost saving alternative. This product is sealed in the original manufacturer’s packaging with all sub-assemblies and documentation. May indicate older date code. Comes with a PDF Supply 3-year warranty.

    Free Overnight delivery on orders over $500!

    What is Surplus New?

    Surplus New - New unused and includes all sub-assemblies and documentation. Product may ship in manufacturer or PDF Supply packaging. May indicate older date code. Includes a PDF Supply 3 Year Warranty.

    Free Overnight delivery on orders over $500!

    What is Reconditioned?

    Reconditioned products from PDF Supply are a cost-effective alternative to new and obsoleted PLC products. Every part is reconditioned down to the circuit board level and updated to the latest revision. All parts are thoroughly inspected and hand-cleaned before being functionally tested in a fully configured system.

    Our Reconditioned Products always come with a PDF Supply 2-Year Warranty.

    Free Overnight delivery on orders over $500!

    What is a Verified Substitute?

    A verified substitute new product is a "drop in" replacement designed with identical specifications as the OEM product. It will meet all electrical and dimensional charactertics at a substanstially reduced price.

    Free Overnight delivery on orders over $500!

    Download Lastest Documentation

    Please visit this manufacturer's website to download the lastest manuals and datasheets.

    Lowest Price Guarantee

    We stand behind our prices with a lowest price guarantee. If you find a legacy GE PLC part advertised for less on an authorized GE PLC distributor website, simply contact us and send us a link to the lower advertised price. We will match that price and ship overnight FREE. The item must be in stock, in similar condition and be able to ship same day.

    Free Shipping

    FREE Overnight Delivery for Continental US orders over $500!

    FREE Ground Delivery for Continental US orders under $500!

    US orders placed Monday - Friday before 5pm EST will ship same day.

    Canada/Mexico orders placed Monday - Friday before 3:30pm EST will ship same day.

    International orders will ship the following business day.