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Allen Bradley

Allen Bradley 1770-KF3 Data Highway 485 Communication Interface Module

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ManufacturerAllen Bradley

Part number1770-KF3

Manufacturer Allen Bradley

AC Input Voltage 85-132 VAC or 170-264 VAC

AC Input Frequency 47-63 Hz

Power Consumption 5 Watts max

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Links host computer to DH-485 network Supports DF1 protocol High data communication rate up to 19,200 baud Multi-master capability Token-passing access control Field replaceable backlight

Product description

The Allen-Bradley 1770-KF3 is a communication interface module that links a host computer via RS-232C (DF1 protocol) to a DH-485 network (via RS-485) for industrial control systems [13]. It supports up to 19,200 baud, allowing for data exchange at high speeds between devices [1, 12, 22].

This module is ideal for manufacturing environments and applications requiring real-time data monitoring and control. It facilitates integration with various Allen-Bradley devices, ensuring smooth communication across different platforms and enhancing operational performance [22].

Source your Allen-Bradley 1770-KF3 communication interface module from Stanlo Automation, a veteran-owned business. We offer reliable parts and dependable service for your industrial automation needs.

Technical specifications

Manufacturer	Allen Bradley
AC Input Voltage	85-132 VAC or 170-264 VAC
AC Input Frequency	47-63 Hz
Power Consumption	5 Watts max
Communication Rate	19,200 baud
Ports	1x RS-232C, 1x RS-485
Operating Temperature	0 to 60°C

Common applications

Manufacturing environments

Real-time data monitoring

Industrial control systems

PLC integration

Data exchange between devices

Legacy automation

Compatible systems

PLC-5 controllers SLC 500 (with DH-485 network) Host computers via RS-232C

Also known as

1770-KF3 Series A Allen-Bradley DH-485 Interface PLC-5 Communication Module

Replaces / compatible with

This module serves as a direct replacement for the Allen-Bradley 1770-KF3. For specific compatibility with older systems, refer to manufacturer documentation.

Technical note

Expert tip

The 1770-KF3 performs full protocol translation between DF1 and DH-485, not just electrical signal conversion, ensuring reliable communication with SLC 5/03 processors [21].

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Frequently asked questions

What is the maximum data communication rate for the Allen-Bradley 1770-KF3?

The Allen-Bradley 1770-KF3 Data Highway 485 Communication Interface Module supports a maximum data communication rate of 19,200 baud (19.2 Kbps) [1, 12, 22]. This high speed allows for efficient data exchange between connected devices.