Archived PLC firmware

Firmware 4.03 update resources.

Preserved firmware, installation video, minimum vBuilder requirement, and release history for qualified maintenance of legacy Velocio PLC installations.

Download firmware 4.03 ZIP Review installation guide
Velocio PLC firmware 4.03 Historical minimum: vBuilder 2.33+

Historical release

Firmware 4.03 for legacy Velocio PLC maintenance.

The legacy download page identified this package as firmware version 4.03. Its published release log begins at 4.01 and does not provide a separate description of changes introduced specifically in 4.03.

01

Archived package

The download ZIP contains the original firmware-vplc-4-03.vbl file. Extract it before opening vBuilder.

02

vBuilder 2.33 or newer

The historical page requires vBuilder 2.33 or higher to perform this firmware installation.

03

Revision check required

This page cannot determine whether firmware 4.03 is correct for the connected PLC hardware.

04

Backup before updating

Save the known-good vBuilder project, machine settings, tag map, and current firmware information first.

Firmware download

Velocio PLC firmware 4.03

Use only after confirming the target controller and reviewing the complete installation precautions. The historical minimum installer version is vBuilder 2.33. The archived VBL file is 824,805 bytes.

Download firmware 4.03 ZIP

Installation tutorial

Review the original update walkthrough before connecting.

Velocio published this video to demonstrate the firmware update workflow in vBuilder. Interface details may differ in later software, so follow the prompts in the qualified vBuilder release used for the controller.

Before selecting the file

Make the update recoverable.

  • Identify the PLC model, hardware revision, currently installed firmware, and machine owner.
  • Open and save the known-good application with an appropriate vBuilder release.
  • Confirm vBuilder is version 2.33 or higher, as required by the historical release page.
  • Use stable controller power and a direct, reliable USB connection.
  • Plan downtime and prevent the machine from moving while controller maintenance is in progress.
  1. 1

    Download, extract, and retain the VBL file.

    Extract and save firmware-vplc-4-03.vbl with the machine’s maintenance record. Do not substitute a similarly named file from an unverified source.

  2. 2

    Back up and connect with vBuilder.

    Preserve the application and machine settings, connect directly to the intended PLC, and verify that the software is communicating with that controller before opening the firmware update workflow.

  3. 3

    Select firmware 4.03 only for a confirmed target.

    Follow the video and vBuilder prompts to select the downloaded VBL package. Re-check the connected controller identity before authorizing the update.

  4. 4

    Do not interrupt the transfer.

    Maintain power and communication until vBuilder reports completion. Then reconnect, confirm the firmware version, restore or verify the application, and test I/O safely before returning to service.

Preserved update log

Firmware changes from 4.01 through 1.01.

The entries below preserve the substance and order of the legacy release log. They are historical notes, not a recommendation to install any particular revision.

  1. 4.01Corrected a DataLog problem when more than one log file is used.
  2. 3.15Enabled as many as three quadrature or high-speed pulse inputs.
  3. 3.12Enabled 115 kbps serial communication.
  4. 3.08Improved input debounce behavior and accelerated expansion discovery.
  5. 3.07Enabled digital-input debounce.
  6. 3.02Enabled control of three stepper motors.
  7. 2.13Corrected countdown behavior with I32 values.
  8. 2.12Corrected an analog-input problem.
  9. 2.10Corrected a Modbus bit issue when addressing more than 30 bits.
  10. 2.08Corrected linked subroutines calling other linked subroutines.
  1. 2.06Improved motion transitions.
  2. 2.03Added the real-time clock and corrected ramp behavior.
  3. 2.02Corrected RS232 Modbus behavior and a hard fault caused by a long end function.
  4. 2.00Corrected scale and Motion Out problems.
  5. 1.15Corrected N- and T-type thermocouple behavior and RS232 problems.
  6. 1.13Corrected a step/direction error and a high-voltage input error.
  7. 1.12Added software updates for new PLC models.
  8. 1.11Corrected a shift/rotate error that could prevent the function from operating.
  9. 1.10Corrected an error when a flow chart loops back to its first block.
  10. 1.09Added CRC to Modbus communication for standards conformance and added selectable PWM pulse counts.
  1. 1.08Added PWM on all output pins and allowed coil types to be updated after placement.
  2. 1.07Improved timer resolution from 10 ms to 1 ms and allowed debugging to resume after reopening the same project stored in the PLC.
  3. 1.06Corrected stepper motion failing to restart properly after a stop.
  4. 1.05Corrected Modbus problems.
  5. 1.04Corrected timer interval duration.
  6. 1.03Corrected the Drum function’s loop count not incrementing.
  7. 1.02Corrected a loop-count error in ladder logic.
  8. 1.01Corrected an error caused by downloading a ladder-logic rung without a coil.

Firmware resources

Keep the file, project, and maintenance record together.

The archived VBL file is useful only when matched to the correct controller. Preserve the known-good vBuilder project and document the installed version and verification results after maintenance.

Download firmware 4.03 ZIP Open vBuilder View Velocio software View PLC resources