PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-KA is a Communication Adapter Module for the PLC-5 system architecture. It connects programmable logic controllers across industrial Data Highway communication networks. The module integrates single processors into an automated plant network. One Data Highway cable supports up to 64 separate processors and computers. Transmission distances extend up to 10,000 feet or 3,048 meters.
The unit enables data exchange among processors and external RS-232-C devices. The module operates in clean, dry environments from 0 to 60 degrees Celsius. Relative humidity tolerance ranges from 5 percent to 95 percent without condensation. It provides an operating shock rating of 30g. Operating power requires 5V DC at up to 1.2A from compatible 1771 power supplies.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Category | PLCs |
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| Weight | 2.00 lbs (0.91 kg) |
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| Module Type | Communication Adaptor Module |
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| Number of Inputs & Outputs | 8 Floating Differential |
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| Data Format | Natural Binary |
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| Channel Update/Resolution | 25 ms/8 channel; 15 bits + sign (1.0 Celsius/1.0 Fahrenheit/bit) |
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| Voltage Range | Type B, E, J, K, R, S, T +/- 99.99 mV |
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| Backplane Current | 750 Miliamperes |
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| Required External Power | None |
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| Wiring Arm | 1771-WH |
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| Coating | Conformal Coat |
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| Typical AC Signal Delay (Off) | 45 (+/- 15) ms |
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| Typical DC Signal Delay (Off) | 50 ms |
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| Mounting | Rack Mountable |
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TECHNICAL INFORMATION
Features
- Connects programmable controllers across Data Highway networks up to 10,000 feet.
- Supports network configurations hosting up to 64 separate programmable devices.
- Provides communication rates of 9.6k, 57.6k, and 91.2k baud.
- Conformal coating provides protection in industrial operating environments.
- Requires 5V DC at 1.2A maximum power supply from 1771 systems.
TECHNICAL INFORMATION
Applications
- Plant automation networks linking distributed programmable controllers.
- Data exchange between programmable processors and RS-232-C devices.
- Industrial manufacturing cells requiring Data Highway communication links.
TECHNICAL INFORMATION
Connections / Interfaces
- Features a programming terminal port operating at 9.6k baud.
- Includes a Data Highway port operating at 57.6k baud.
- Provides a dedicated processor communication port operating at 91.2k baud.
- Compatible with 1771-WH and 1771-WI wiring arms.
TECHNICAL INFORMATION
Installation Guidelines
- Install the unit into any 1771 I/O chassis slot except the furthest left position.
- Position lower connector keying bands between pins 4 and 6.
- Position upper connector keying bands between pins 22 and 24.
- Connect communication channels in daisy chain formation.
TECHNICAL INFORMATION
Configuration Guidelines
- Set the program interface port to 9.6k baud.
- Configure the Data Highway port for 57.6k baud operation.
- Set the processor port communication rate to 91.2k baud.
TECHNICAL INFORMATION
Compatibility
- Compatible with various Allen-Bradley PLC-2 processors.
- Mounts in Allen-Bradley 1771 I/O chassis assemblies.
- Compatible with 1771-P1, 1771-P2, 1771-P3, 1771-P4, and 1771-P5 power supplies.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with various Allen-Bradley PLC-2 processors. Mounts in Allen-Bradley 1771 I/O chassis assemblies. Compatible with 1771-P1, 1771-P2, 1771-P3, 1771-P4, and 1771-P5 power supplies.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the Allen-Bradley 1771-KA module?
It connects processors over a Data Highway network to exchange data among themselves and RS-232-C devices.
What baud rates does the 1771-KA communication module support?
It supports 9.6k baud for programming, 57.6k baud for Data Highway, and 91.2k baud for processors.
Which processors are compatible with the 1771-KA module?
The module is compatible with various Allen-Bradley PLC-2 processors.
What is the market reference price for the 1771-KA?
Observed market reference pricing is around $49.00 USD. This is an indicative market reference price only and is not a final quotation.
