PLR6500 Protocol to I/O & I/O to I/O System 

The system includes  2.4GHz PLR6535 Master & PLR6530 I/O to I/O Interface

PLR Wireless I/O System:

  • License-free 2.4 GHz ISM band
  • Range up to 2 miles (3.2 km)
  • SmartSpectrum™ Technology for maximum data integrity, even in noisy industrial environments
  • AES-256 encryption
  • Separate RS-232 DB9 configuration port
  • User-adjustable hop patterns and frequency zones for refined operation of close proximity networks
  • Factory configured for easy installation
  • CIX/EXR I/O expansion module available
  • Optional Din rail mount

(For the 900MHz license-free band check out PLR6400 System)

Contact or call 425-882-2206 for questions, information or to discuss your project. Ready to start your project? Fill up our Request Project Assistance Form, and our team will contact you to assist you in your project.

**Due to unforeseen supply-chain issues, please contact our sales team for availability & lead times.


Product Description

 Welcome to the cutting-edge world of Data-Linc’s PlantLinc short to medium-range modem family! Our revolutionary “PLR” modems redefine short-range industrial communication, addressing your needs for in-plant wireless installations. Crafted in direct response to customer demands, these modems seamlessly replace less reliable technologies while retaining the robust FHSS (Frequency Hopping Spread Spectrum) data transfer method found in our premium SRM Family – all at a lower competitive price.

Key Features:

Extended Reach with CIX Capabilities:

  • PLR modems bring you the same key CIX features in the 2.4 GHz license-free band, facilitating data transfer up to 2 miles* (3.2 km) with line-of-sight, even in high RFI/EMI and crowded band environments.

FHSS Radio with I/O Connections:

  • The PLR6530 FHSS radio offers connections for discrete and analog inputs and outputs, providing a versatile solution for I/O to I/O data exchange.

Flexible Networking Solutions:

  • Choose between I/O to I/O mirroring using PLR6530 radios for the entire network or implement an I/O to protocol solution with PLR6530 I/O units and the unique PLR6535 protocol to I/O Master. This system supports up to 384 I/O points across a maximum of 16 remote locations.

Simplicity in Implementation:

  • Radios with I/O connections offer a straightforward way to interconnect devices that do not share the same communication protocol or lack a communication port, enhancing simplicity in deployment.

User-Selectable Options:

  • Our included configuration software empowers you to define the desired state for discrete outputs in case of communication failure, putting you in control.

Hybrid Application Compatibility:

  • These competitively priced I/O solutions seamlessly integrate with corresponding versions of long-range radios, supporting hybrid CIX/PLR and SRM/PLR applications. This flexibility extends to network designs both inside and outside the plant.

*Greater range achievable in optimal conditions with clear line-of-sight, Repeaters, and/or higher gain antennas.

For comprehensive details, download our datasheet and user guide

Elevate your industrial communication with Data-Linc’s PLR modems – your gateway to unmatched reliability and versatility!


PLR6500 Datasheet 

PLR Family Modems Advantages

PLR6500 User Guide 

Download Configuration tool for PLR6535

Download Configuration tool for PLR6530

CIX/EXR – AOI for I/O Extenders – AOI (Add-On-Instructions) are available for Data-Linc’s I/O extender applications that use Rockwell Logix5000-based controllers. AOI is for Protocol to I/O networks. The AOI is available by request from DATA-LINC technical support. Email: .




PLR6500 System Specifications

Operating Frequency
License-free, 2.4 GHz ISM band (user setting for the full or truncated band)

CD CIX-LincTM and CIX -I/O configuration & diagnostics software, User Guide, Bench test antenna, Configuration cable, Power Supply.

PLR6535 & PLR6530

Frequency Range: 2 miles (3.2 km) LOS with Omni antennas
Output Power: 5 to 250mW (24 dB) maximum, (27 programmable steps)
Modulation: 2-level GFSK
Hop Patterns. 15 (user selectable)
Occupied Bandwidth. 230KHz

Sensitivity: -100 dBm @ 153.6 Kbps for BER 10-4
IF Selectivity: 40 dB @ fc ±230 KHz

RF Data Transmission:
Error Correction: 32-bit CRC, Retransmit on error
Data Encryption: 256-bit AES
Data Rate 153 Kbps

Standard thread SMA female
Nominal Impedance 50Ω

Operating Environment
Temperature: -40°0 to 167° F (-40° to 75° C)
Humidity: 0 to 95% non-condensing


Standard. 18-gauge steel
2.47 X 3.70 X 6.4 in. (6.274 X 9.398 X 16.26 cm)
Optional. DIN rail mounting flanges(3) (included)
Shipping Weight. 1.8 lb (0.82 kg)

PLR6535 Protocol Master

Data RJ45 10/100 Base-T Auto-MDIX
Input Voltage 10-28 VD; wall mount 12VDC/ 115-230 VAC power supply included
Transmit Current 650mA@12VDC (8W)
receive Current 167mA@12VDC (1.2W)

Operating Modes
Master Only

Front Panel LEDs Power, RF Carrier, RF Out, RF In, LAN(Linc-ACT), Mode LEDs x 4

PLR6530 I/O Remote Radio Modem


Analog: 0-20mA, 4-20mA or 0-10VDC, 24 VDC max. loop
Voltage: 12-bit resolution, self-powered
Discrete Inputs: Dry contact closure.
Discrete Outputs: Open collector (sink to ground), 100mA per channel, 12-24VDC

Input Voltage: 12-28 VDC; wall mount 12VDC/ 115-230 VAC power supply included.
Transmit Current 650mA@12VDC (8W)
receive Current 167mA@12VDC (1.2W)

Operating Modes: 
Master, Remote, Repeater, Repeater/Remote

Front Panel LEDs Power, RF Carrier, RF Out, RF In, LAN (Link-Act)