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SDI Plug-in - Parker Compax3 (System) by Parker Hannifin - Toolkit for LabVIEW Download

SoftMotion Drive Interface (SDI) Plugin for Parker Compax3 EtherCAT Servo Drives

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ReleasedJan 12, 2018
Publisher Parker Hannifin
License EULA
LabVIEW VersionLabVIEW>=0
Operating System Windows
Project links Homepage  


SoftMotion Drive Interface (SDI) Plug-in for Parker Compax3 EtherCAT servo drives. Please read all release notes and known issues before using.

Allows NI SoftMotion VI's and examples to control Parker Compax3 EtherCAT servo drives. Single and multiple drives supported. Multiple 3rd party EtherCAT drives on the same EtherCAT network supported.

This package requires the following installed software:
- NI LabVIEW 2016 or later
- NI Real-Time Module 16.0 or later
- NI RIO 16.0 or later (included in CompactRIO or Industrial Controller 16.0 or later)
- NI SoftMotion 2016 or later
- NI Industrial Communications for EtherCAT 16.0 or later

This package also requires VI Package Manager 2016 or later.
VI Package Manager must be run with administrator privileges to ensure this package is installed correctly.

- Minimum firmware version: 2017R09-76
- Plug-in supports 5, 4, 2, and 1 millisecond and 500 microsecond Scan Engine Periods on the RT Target
- Cyclic Synchronous Position Mode supported
- Profile Velocity Mode supported
- Profile Torque Mode is NOT supported
- Touch Probe is NOT supported
- Find Reference types supported:
Find Reference Move - Forward Limit
Find Reference Move - Reverse Limit
Find Reference Move - Index
Find Reference Move - Home
Find Reference Move - Absolute
Reference Move Notes:
- After a SoftMotion Find Reference routine with Parker Compax3 EtherCAT drives, the position resets to 0 after completing a reference move. It is recommended to perform a Find Reference move before calling SoftMotion Reset Position.

- Digital I/O Support:
Parker Compax3 drives have 8 digital inputs and 4 digital outputs available on the X12 I/O connector. Of these, 3 inputs are used for limits and home switches, 5 inputs are general purpose, and 4 outputs are general purpose. The default pin assignment as per the drive documentation fully functional with SoftMotion.
The assignments in the format "I/O Line : SoftMotion function assignment" are shown below. Note that the "Device I/O Assignment" setting in C3 ServoManager2 must be set to Free for the general purpose inputs and outputs to be accessible from SoftMotion.

Digital Inputs: Digital Outputs:
I0 : SoftMotion DI0 O0 : SoftMotion DO0
I1 : SoftMotion DI1 O1 : SoftMotion DO1
I2 : SoftMotion DI2 O2 : SoftMotion DO2
I3 : SoftMotion DI3 O3 : SoftMotion DO3
I4 : SoftMotion DI4
I5 : Reverse Limit Switch
I6 : Forward Limit Switch
I7 : Home Switch

- Unit Scaling:
By default, the SoftMotion axes are configured without unit scaling. This means moves will be commanded in units of encoder counts. Right click on the SoftMotion Axis and use the Encoder tab to change the position scaling by setting the number of encoder counts per desired unit.
The Parker Compax3 drive's counts/revolution value will depend on the drive configuration in Parker's C3 ServoManager2 software. For compatibility, the "Unit of Travel" must be set to "Increments", and the "Travel distance per revolution" should be set to the encoder's resolution.

- EtherCAT Slave Configuration
EtherCAT Distributed Clock is supported on Parker Compax3 EtherCAT drives with firmware version 2017R09-76 and newer. The plug-in automatically enables the Distributed Clock to support Scan Enginer periods of faster than 5ms, so this plug-in is not compatible with older Compax3 firmware versions.

- For support using the LabVIEW SoftMotion Module as well as configuring or deploying to your real-time target, visit
- For support using Parker's C3 ServoManager2 software to setup, configure, or tune the Parker Compax3 drive as well as wiring questions, visit

Release Notes (Jan 12, 2018)

Release Notes:
- Updated plug-in code to improve CPU performance
- Fixed issue preventing negative velocities in Profile Velocity mode
- Fixed an issue where Read Faults would return repeated data

Known Issues:
- Not compatible with Compax3 firmware versions older than 2017R09-76.
- Plug-in will set Find Reference move acceleration value to 100x the Search Velocity if "0" or no acceleration value is set in SoftMotion (CAR 583192).

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