Simultaneous Axis Start with XPM_SST

XPM_SST is used to start multiple axes simultaneously. XPM_SST will execute movements for the axes from the Position data table of the selected axes.

Element Name Element Type Description
REQ Input Edge detected request to execute the function block
BASE Input Base number of the motion controller.Equal to 0 for built-in position control.
SLOT Input Slot number of the motion controller.Equal to 1 for built-in position control
SST_AXIS Input Setup which axes are being used for simultaneous start. See section 1.1 for more information.
A1_STEP Input Axis 1 step to execute from the Position Data table. Can be a constant or variable.
A2_STEP Input Axis 2 step to execute from the Position Data table. Can be a constant or variable.
A3_STEP Input Axis 3 step to execute from the Position Data table. Can be a constant or variable.
A4_STEP Input Axis 4 step to execute from the Position Data table. Can be a constant or variable.
A5_STEP Input Axis 5 step to execute from the Position Data table. Can be a constant or variable.
A6_STEP Input Axis 6 step to execute from the Position Data table. Can be a constant or variable.
A7_STEP Input Axis 7 step to execute from the Position Data table. Not used in XEM embedded positioning.
A8_STEP Input Axis 8 step to execute from the Position Data table. Not used in XEM embedded positioning.
DONE Output Status that function block is done.
STAT Output Current status of the function block.Non-zero numbers will be an error or warning.

SST_AXIS input is a USINT data type.

  • Each bit of the value is used to enable simultaneous start for the selected axes.

  • This input can be a variable or a constant.

  • When using a constant, use binary format of ‘2#00011111’. This example does simultaneous start with axes 1 thru 5.

  • When using a variable, binary format can be used in the MOVE function.

This example shows control of Axis 1 thru 4 by an XEM-DN32HP CPU. XPM_SST will be used to perform a simultaneous start of these 4 axes.

Step Action
1

Open the XG5000 project for the application. Go to Tools menu è Position Control to open XG-PM software.
2

Open the XG-PM project or Connect to PLC and select Project è Open from PLC.
3

Open the Parameter file in the Workspace for the axis that is being configured. This example shows Axis #1.

This parameter screen will open.
4

Configure the parameters of the Axis. This example shows Axis 1.
5

Save the project. Connect to the CPU and write the project to the CPU.

Note: If connecting XG5000 and XG-PM at the same time, make sure to connect XG5000 first. XG5000 will give error messages if it is connected last.

Note: Homing needs to be completed with the XPM_ORG function block prior to executing an Absolute Positioning move.

XPM_SST is set to run Step 1 for Axes 1 through 4.

Before Executing XPM_SST

During Execution of XPM_SST

After Executing XPM_SST

Simultaneous Start can be done from XG-PM.

  • It is in the Extension Command tab.

  • This is for testing purposes only.

 

 

 

 

LP518