The Allen-Bradley 1785-KE is a Data Highway Plus (DH+) communication interface module. It allows an intelligent RS-232-C (asynchronous) device to communicate with an Allen-Bradley PLC-5 controller. This module is part of the PLC-5 family from Rockwell Automation.

Connectivity

The 1785-KE module connects an RS-232-C device, like a bar code reader, printer, or touch screen, to a PLC-5 controller. It converts RS-232-C signals to DH+ protocol signals, which transmit over the DH+ network to the PLC-5 controller.

Applications

The 1785-KE module can be used in various applications, including:

• Data acquisition and control
• Supervisory control and data acquisition (SCADA)
• Industrial automation
• Machine control

Technical Specifications

• Communication protocol: DH+
• Data rate: Up to 9600 baud
• Word length: 7 or 8 bits
• Parity: Even, odd, or none
• Stop bits: 1 or 2
• Flow control: None, XON/XOFF, or hardware
• Power requirements: 24 VDC at 0.25 A
• Operating temperature: 0 to 60°C (32 to 140°F)
• Dimensions: 7.87 in (200 mm) x 3.15 in (80 mm) x 1.61 in (41 mm)

Additional Features

The 1785-KE module includes on-board diagnostics to troubleshoot communication problems. Additionally, you can configure it remotely using RS-232-C communication.

Versatility and Reliability

The Allen-Bradley 1785-KE communication interface module is a versatile tool for various industrial automation applications. It is reliable and easy to use, backed by Rockwell Automation’s reputation for quality and support.