1-919-535-3180 | 1-800-360-6802

GE / IP FANUC Series 90/30 In Stock

A Global Supplier of Industrial Electronics



Mon-Fri 8AM-5PM EST



Rated 4.7/5 Based on 10 ratings.

Rate your purchase of the 1771-KG

Allen Bradley | PLC-5 | 1771-KG | Image

Allen Bradley | PLC-5 | 1771-KG | Image Allen Bradley | PLC-5 | 1771-KG | Image

All product names, trademarks, brands and logos used on this site are the property of their respective owners. PDF Supply is not an authorized distributor, reseller or representative of the products featured on this website. 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.



3 In Stock

2 Yr PDFsupply warranty

Repair Service


Fast Turnaround

2 Yr PDFSupply warranty

Order Today - Ships Today!

*US continental orders placed Monday-Friday before 4:30pm EST!

Other Available Revisions for the 1771-KG 1771-KG/A1771-KG/B

Common misspellings:
  • l771-KG
  • 177l-KG
  • 1771KG

The Allen-Bradley 1771-KG is an interface module that provides a link between the processor (PLC-2) and an RS-232-C (intelligent) device or devices. The linking provides communication (master/slave and point-to-point) with intelligent devices or PCs. A complimentary interface to another processor (PC) is achieved through a point-to-point channel with a communication module and a point-to-point communication with data highway stations is achieved by providing a link to the 1771-KE and the 1771-KF communication controller modules. The 1771-KG is compatible with the 1772-LV, 1772-LN1, 1772-LN2, 1772-LN3, 1772-LP1, and the 1772-LP3 bulletin processors. 

The 1771-KG occupies a single slot in the Allen-Bradley 1771 Input/Output chassis. The module should be placed at a distance of 10 cable feet. from the processor and is powered through the backplane. The 1771-KG uses the PROCESSOR, PROGRAM INTERFACE, and the RS-232-C connector ports for communication. The module also has LED indicators (PROC, PROG, ACTV, RCVG, and XMTG) that help in troubleshooting and monitoring the module plus devices connected to it. The 1771-KG module uses the full-duplex protocol for point-to-point communications. For master/slave communications the 1771-KG uses the half duplex protocol. Additionally, the module communicates at a speed of 110, 300, 600, 1200, 2400, 4800, 9600, or 19,200 bits per second. The 1771-KG module draws a current of 1 Amps from the backplane and it uses pins 4 to 6 and pins 22 to 24 for keying. The 1771-KG module operates maximally within a relative humidity range of between 5 and 95% and an ambient temperature of between 0 and 60 degrees Celsius. When it is not in use, the 1771-KG should be stored in an area with a temperature ranging from -40 to 85 degrees Celsius.


AB Data Hwy RS-232C Intfce. Mod. 1771K

PDF Electric & Supply Inc. sells new, new surplus and refurbished products which are sourced through independent channels. All warranties and support, if applicable, are with PDF Electric & Supply Inc. and not the manufacturer. PDF Electric & Supply Inc. is not an authorized distributor or representative for the listed manufacturers and makes no representations as to any quality control performed by any listed manufacturer on the products. The products listed on this website may vary as to their country of origin; the accessories, and other items included with the product; and the language used on the packaging, the parts, and any related instructions or printed material related to the products. This website is not sanctioned or approved by any manufacturer or tradename listed. Designated trademarks, brand names and brands appearing herein are the property of their respective owners.