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Omron CJ1W-PRM21 CJ Series Protocol Macro Communication Unit

SKU: CJ1W-PRM21

Protocol macro module for custom serial protocol communication

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Product Overview

The Omron CJ1W-PRM21 is a specialized communication module for CJ1 series PLCs, featuring Protocol Macro functionality for custom serial protocol communication. This module allows users to create custom communication protocols for interfacing with non-standard devices that use proprietary or uncommon serial communication formats. The Protocol Macro functionality enables development of custom message formats, timing sequences, and response handling without requiring external protocol converters. The CJ1W-PRM21 supports both RS-232C and RS-485 interfaces, providing flexibility for various connection types. The module can send and receive variable-length messages with custom headers, checksums, and data formats. Easy programming is achieved through CX-Protocol software, which provides a visual interface for creating and testing protocol sequences. The CJ1W-PRM21 is ideal for connecting to legacy equipment, specialized sensors, barcode systems, and any device requiring custom communication protocols. The module includes buffer memory for handling data exchange without impacting PLC scan time. LED status indicators provide monitoring of communication activity. Applications include custom device integration, legacy equipment modernization, specialized sensor interfaces, and any application requiring non-standard serial communication.

  • SKU: CJ1W-PRM21
  • Series: CJ1

Best-Fit Applications

  • Custom device integration
  • Legacy equipment connection
  • Specialized sensor interfaces
  • Barcode scanner integration
  • Weigh scale communication
  • Non-standard protocol devices
  • Custom serial devices
  • Protocol conversion

Buying Checklist

  • Custom protocol flexibility
  • No external converters needed
  • RS-232 and RS-485 support
  • CX-Protocol easy programming
  • LED diagnostics
  • Standard CJ1 compatibility
  • Proven Omron technology
  • Simplifies device integration

Technical Specifications

Model CJ1W-PRM21
Series CJ1
Ports 1x RS-232C, 1x RS-485
Protocol Type Protocol Macro
Baud Rate 300 to 115200 bps
Message Length Variable
Programming CX-Protocol
Buffer Built-in
Communication CJ1 backplane
Current Consumption 200mA at 5VDC
Weight Approx. 130g

FAQ for CJ1W-PRM21

What is Protocol Macro?
Protocol Macro allows creating custom serial communication protocols for non-standard devices.
What software is needed?
CX-Protocol software is used to create and download protocol sequences to the module.
Can it handle variable message lengths?
Yes, the module supports variable-length messages with custom formats.

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