HI 6500 Series

HI 6500 EtherNet/IP Weight Processor with a big, bright multi-channel display and fast, high-resolution stable weight readings.

Hardy HI 6500 and HI 6500-XP

EtherNet/IP® & Profibus-DP® Weight Processors Now Include Extreme Weight Processor Version with 6X the Speed and 3X the Resolution

The HI 6500 series are EtherNet/IP® enabled weight processors with a Rockwell Add-On-Profile (AOP) and Faceplate/AOIs. They have a big, bright multi-channel display and deliver fast, high-resolution weight readings. They also feature Profibus-DP, Modbus, Analog, and Ethernet communication options.  

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Weight processors are used as front ends to control systems or standalone for all types of general weighing applications. Operating blind or with a display, they measure, condition and communicate weight without any need to control.

The HI 6500 series delivers stable processed weight with a resolution of 1:10:000, and an update speed of 110 updates per second (processor, display and comm.). They enhance the productivity of process manufacturing systems where fast, precise weight-based controls are critical. They offer you many communication choices including EtherNet/IP, Modbus TCP & Modbus RTU, and Analog 4-20mA.

The  HI 6500-XP Extreme Weight Processor can process and output 660 updates per second of processed (stable) weight with a resolution of 1:30,000. The HI 6500-XP represents the state-of-the-art in processing uniformity and speed. A/D conversion, weight processing and the communications port ALL update at 660 times per second, providing the PLC with the latest processed weight reading every 1.5 milliseconds. Many competitor’s products execute the A/D conversion at one frequency, then process the weight and communications ports at a much slower rate typically 20 to 50Hz, only providing the PLC with an update every 20 to 50 milliseconds. The HI 6500-XP results in better product consistency and product yields while reducing processing time, waste time and materials. It is designed for applications where speed and accuracy are paramount to control and quality, such as batching, blending, filling, dispensing and check weighing.

For panel mounting, simply drill five holes to mount the keypad/ display on the front and the instrument to the other side. For blind or remote mounting, just snap its built-in clip onto a DIN rail or mount on a wall. The HI 6500 series fits in a 2" deep cabinet!

For maximum visibility and usability, the HI 6500 series features a big, rugged high-contrast display with a 140 degree viewing angle for easy reading at a distance. Discrete status messaging means there is no need to check a manual for error codes or instructions.

To save space and energy, the HI 6500 series can deliver the weight readings of up to four instruments on one big, bright display panel simultaneously! Name your display inputs for easy ID and rearrange them in any order.

Each instrument consumes just 5 watts nominal and 7 watts max, saving energy costs while driving up to 8 load points and two Hardy IT Junction Boxes. Share a keypad/display with four instruments and save 1.5 watts more per blind unit.

A set-up wizard guides you through installation and calibration, or use the embedded web server to set up parameters from anywhere on your network. Front panel keys and simple menus enable quick, easy setup with supporting help text. Use Hardy's exclusive C2® for automatic system calibration, which saves hours of start-up and maintenance time. A Rockwell Add-On-Profile makes PLC setup fast and easy.  Hardy has also developed a Profibus-DP .GSD file available on the downloads tab on the Hardy HI 6500 page. 


Quickly and easily troubleshoot the weighing system from the front panel of the display or connected control system using Hardy's proprietary INTEGRATED TECHNICIAN (IT) built-in system diagnostics.

Hardy’s WAVERSAVER® technology supresses vibration and mechanical noise, dramatically reducing scale settling time and increasing the speed of stable gross and net weight readings.  Exclusive to the HI 6500-XP Extreme Weight Processor is Hardy’s patent-pending WAVERSAVER+® technology that suppresses vibration and mechanical noise, reducing scale settling time and increasing the speed of stable gross and net weight readings.

The Hardy HI 6500 and HI 6500XP are available Now!  Get a Quote Today! 

HI 6500 Series

Model Numbers

  • HI6500-WP-00-EIP EtherNet/IP configuration, no display
  • HI6500-WP-10-EIP EtherNet/IP configuration, with display
  • HI6500-WP-00-PB Profibus-DP configuration, no display
  • HI6500-WP-10-PB Profibus-DP configuration, with display
  • HI6510-WP-00-EIP Analog & EtherNet/IP, no display
  • HI6510-WP-10-EIP Analog & EtherNet/IP, with display
  • HI6510-WP-00-PB Analog and Profibus-DP, no display
  • HI6510-WP-10-PB Analog and Profibus-DP, with display

Extreme Weight Processors

  • HI6500-XP-00-EIP EtherNet/IP configuration, no display
  • HI6500-XP-10-EIP EtherNet/IP configuration, with display
  • HI6500-XP-00-PB Profibus-DP configuration, no display
  • HI6500-XP-10-PB Profibus-DP configuration, with display
  • HI6510-XP-00-EIP Analog & EtherNet/IP, no display
  • HI6510-XP-10-EIP Analog & EtherNet/IP, with display
  • HI6510-XP-00-PB Analog and Profibus-DP, no display
  • HI6510-XP-10-PB Analog and Profibus-DP, with display


Description                                                                Part Number

Wall and Horizonal Mounting Brackets Kit for HI6500            0551-0653-03-0

Wall and Horizonal Mounting Brackets Kit for HI6510            0551-0653-04-0

"Multi-display wiring harness
(connects up to 4 instruments to a single display)"             0509-0534-01-0

HI6110 Display (As Sold Separatly from Instrument)            HI6110

Hardy Process ToolboxHardy Process Toolbox

The Hardy Process Toolbox is a set of productivity tools that support industrial weighing functions. Each tool saves you time, increases accuracy, improves efficiency or reduces risk in process weighing applications, including WAVERSAVER® to eliminate vibration, C2® electronic calibration and Integrated Technician® to name just a few.

The HI 6500 series features the following Toolbox technologies:

WAVERSAVER® Vibration Eliminator
Hardy's WAVERSAVER core technology eliminates the effects that surrounding vibration has on the scale weight signal, providing only true data for fast, accurate weight reading.

HI 6500-XP and HI 6510-XP ONLY 
Hardy's patent-pending WAVERSAVER+ patent pending adaptive algorithm that selects from a bank of 7 noise filters, and uses the optimum mix to provide a stable weight under static conditions. 

C2® (or eCAL) Electronic Calibration
The Hardy C2® (or eCAL as it is known in China) core feature provides quick and easy electronic calibration of a weighing system without the need for heavy test weights.

Hardy's INTEGRATED TECHNICIAN® (IT) core feature helps you troubleshoot your weighing system and diagnose problems from the front of the instrument or via the PLC. These tests display individual system weights and voltages, as well as  pass/fail, stability and zero verification to help isolate a problem to the instrument, cabling, or sensors, helping to reduce maintenance costs.

Embedded Web Server
Access your instrument from any computer browser, easing setup and making diagnostics fast and easy.  Use the Embedded Web Server to set up all pasword protected parameters from anywhere on the Ethernet network.

Secure Memory Module
SMM uses a standard USB memory stick to save configuration data for backup to a PC or to transfer to another instrument.


Resolution  HI 6500 and HI 6510
• Stable processed weight 1:10,000
• Maximum displayed resolution: 1:999,999
• Internal resolution 1:8,388,608

Resolution HI 6500-XP and HI 6510-XP
• Stable processed weight 1:30,000
• Maximum displayed resolution: 1:999,999
• Internal resolution 1:8,388,608

Update Rate  HI 6500 and HI 6510
• Processed weight, display, communications: 110 times per sec.
• Unprocessed weight (A/D conversion): 4800 times per second

Update Rate  HI 6500-XP and HI 6510-XP
• Processed weight, display, communications: 660 times per sec.
• Unprocessed weight (A/D conversion): 4800 times per second

• Gross, Net, Piece Count
Units of Measure:
• Ounce, Pound, Ton, Gram, Kg, Metric Ton, Pieces
Weight Processing:
• WAVERSAVER®: .25 Hz to 7.5 Hz
HI 6500-XP and HI 6510-XP ONLY: WAVERSAVER+® Adaptive Filtering
• Averaging:1 to 255 User-selectable in single increments
• 80:1 contrast ratio with 4.3" effective viewing area
• 140° viewing angle
Multi-channel Display:
• Control configure, and view one to four instruments on a single front panel (up to 3 blind and one with a display)
Calibration Methods:
• C2® calibration without test weights
• Traditional calibration with test weights
• 5VDC
Number of Load Cells:
• Up to 8 at 350 Ω with two IT junction boxes
• 5-Button Tactile
• DIN, low profile, panel, wall
• EtherNet/IP (-EIP models)
• Ethernet UDP
• Ethernet TCP/IP(Embedded Webserver)
• Modbus RTU
• Modbus TCP (-EIP models)
• Analog 4-20mA (HI 6510 models)
• Profibus-DP (-PB models)
Communication Interface:
• Terminal, RJ-45
• USB Secure Memory Module for saving setup and configuration
• 12-27 VDC
• 5 watts nominal with display
• 7 watts max with two Hardy IT junction boxes and 8 load points
• -10°C to +60°C (14° F to 160°F)
• 0-90% non-condensing
• 7” W x 3”H x 2 ¼” D (18 cm x 7.6 cm x 5.7 cm)
• Hazardous: Class I, II.III/Div2
• Safety: CE, UL & CUL
• EtherNet/IP ODVA Certification Level 3
• Profibus-DP
• Two-year warranty against defects in workmanship