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1771-KH

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The Allen-Bradley 1771-KH module provides an interface between the PLC-2 family processors and modems. It is used when the PLC-2 processors need to communciate over a long distances through modems.

Available

Available

$1300

Ships Fri, May 23

1 in stock

Ships Fri, May 23.

In Stock

Ships from Raleigh, NC

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Technical specifications for 1771-KH

Brand	Allen-Bradley / Rockwell Automation
Series	PLC 5
Part Number	1771-KH
Product type	Modem interface module
Compatibility	PLC-2 family processors
Communication Protocol	TWR S-70 / S-703
Location	1771 I/O chassis
Electrical interface	RS-232 compatible
Backplane current draw	1.0 Amps
Operating temperature	32 to 140 degrees Fahrenheit
Storage temperature	-40 to 185 degrees Fahrenheit

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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The Allen-Bradley 1771-KH module is a modem interface module. It is used to provide an interface for the PLC-2 series processors to communicate with modems in long-distance applications. The 1771-KH module uses a half-duplex communication protocol based on the TWR S-70 / S-703 protocol. The 1771-KH module can communicate with a modem only when the PLC-2 processor is in the RUN mode. The 1771-KH module accepts messages from the modem in the S-70/S-703 format and it replies with system information or performs the requested action in the PLC-2 processor. The processors compatible with the 1771-KH module include the Mini-PLC-2 processor, Mini-PLC-2/05 processor, Mini PLC-2/15 processor, PLC-2/20 processor, and the PLC-2/30 processor. The 1771-KH module can be installed in any module with a 1771 I/O chassis which is within 10 cable-feet of a compatible processor.

There are three communication interfaces on the front panel of the 1771-KH module, and they are the MODEM interface for direct connection to a computer up to 50 feet away or for connecting to a computer through a modem, the PROGRAM interface for connecting to an industrial terminal for a PC processor, and the PROCESSOR interface for connecting to a PC processor through a cable. The electrical interface of the 1771-KH module is compatible with the RS-232 network. The communication protocol is based on the TRW S-70/S-703 synchronous/asynchronous half duplex industrial protocol. The supported communication rates are 75, 1110, 300, 500, 1200, or 2400 bps. The current drawn by the 1771-KH module from the chassis backplane is 1 Amp. The operating temperature enrage for the module is from 32 to 140 degrees Fahrenheit. The storage temperature range for the 1771-KH module is from -40 to 185 degrees Fahrenheit. The relative humidity range for operation and storage is 5 to 95%.