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axis-config-userunits.cs
Note
See Axis: Configuration 📜 for a detailed explanation of this sample code.
Warning
This is a sample program to assist in the integration of the RMP motion controller with your application. It may not contain all of the logic and safety features that your application requires. We recommend that you wire an external hardware emergency stop (e-stop) button for safety when using our code sample apps. Doing so will help ensure the safety of you and those around you and will prevent potential injury or damage.

The sample apps assume that the system (network, axes, I/O) are configured prior to running the code featured in the sample app. See the Configuration page for more information.
using RSI.RapidCode; // RSI.RapidCode.dotNET;
Console.WriteLine("📜 Axis Config: UserUnits");
int exitCode = 0;
// set sample config params
double defaultUserUnits = 1;
// get rmp objects
Axis axis = controller.AxisGet(axisNumber: Constants.AXIS_0_INDEX);
try
{
Helpers.CheckErrors(controller);
Helpers.CheckErrors(axis);
Helpers.VerifyHardwareUsage(controller);
Helpers.VerifyAxisCount(controller);
// get defaults
defaultUserUnits = axis.UserUnitsGet();
// Define counts per unit (user units)
// set
axis.ErrorLimitTriggerValueSet(1); // Position error limit trigger (see support page)
// get
double userUnits = axis.UserUnitsGet();
Console.WriteLine($"User Units: {userUnits}");
exitCode = Constants.EXIT_SUCCESS;
}
// handle errors as needed
catch (Exception e)
{
Console.WriteLine($"❌ Error: {e.Message}");
exitCode = Constants.EXIT_FAILURE;
}
finally
{
axis.UserUnitsSet(defaultUserUnits); // restore
controller.Delete(); // dispose
}
return exitCode;
Constants used in the C# sample apps.
Definition _constants.cs:3
const double AXIS_0_USER_UNITS
Default: 1.
Definition _constants.cs:26
const int EXIT_FAILURE
Exit code for failed execution.
Definition _constants.cs:69
const int AXIS_0_INDEX
Default: 0.
Definition _constants.cs:20
const int EXIT_SUCCESS
Exit code for successful execution.
Definition _constants.cs:68
double UserUnitsGet()
Get the number of counts per User Unit.
void UserUnitsSet(double countsPerUserUnit)
Sets the number of counts per User Unit.
void ErrorLimitTriggerValueSet(double triggerValue)
Set the Position Error Limit trigger value.
Represents a single axis of motion control. This class provides an interface for commanding motion,...
Definition rsi.h:5921
static MotionController * Get()
Get an already running RMP EtherCAT controller.
Represents the RMP soft motion controller. This class provides an interface to general controller con...
Definition rsi.h:800
Helpers namespace provides utility functions for common tasks in RMP applications.
Definition helpers.h:21