Position Data Table Configuration - LS Electric XGB PLC from AutomationDirect

let's look at the position data table in the xgp software we have already created a project and are online with the motion controller we will be accessing the position data table for Access one to do this we will go to the project window on the left side of the screen and expand AIS one we can then doubleclick on position data this will open the position data window for our project we have the maximum of 400 position data rows each row has 13 colums for the various values and functions possible for a position data point at the Left End of the window is a list of index numbers for each position data row this number is the primary identifier used to reference the data point from the command tool window or xpm function blocks like the IST block the axis being edited in our case axis one is shown in the top left corner the control type determines which type of movement the row executes there are absolute and incremental moves interpolation Etc please refer to the help files and product documentation for more details on each the operation type determines what action is taken after a step is executed or called each operation type has a different Behavior depending on the control type being used single end single keep and single continuous are the most commonly used options again the help files and product documentation will contain details for each type Target position and operations speed are the location or direction of the move and the velocity it is executed at different control types use these numbers differently so please refer to the documentation for details on what information to enter Excel number and dcel number refer to the preset acceleration and deceleration times used for the move these are configured in the axis parameter window and are unique to each axis they are the times measured in milliseconds and are used to calculate the motion profile for the position data point mcode refers to a unique movement code for this index number when this index is being executed the M code value will be stored in the plc's flag variable memory there are a series of function blocks parameter settings and variables that need to be configured and deployed properly to allow this feature please refer to the documentation for more detail dwell time is how long after completing the step the system will wait to take the next action some operation types will move to the next position data point after the dwell time and others will simply stop sub AIS setting is used to link multiple axes together for a blended interpolation move such as a two-axis circular or 3axis helical profile the circular interpolation auxiliary Point column is used in tandem with the target position column to Define an arc for a circular interpolation move the way the system uses the auxiliary point in the calculation is determined by the circular interpolation mode column the circular interpolation turns column determines how many circles will be formed with the move finally the helical interpolation allows you to set a third axis in sequence with the first two for a three-dimensional interpolated Circle forming a helix it is useful to note that any of the X GPM data table values may be edited using the xpm SMD instruction this allows the programmer to alter the data table using the PLC code during project execution as we start to look further into these motion interpolations it will become apparent that having multiple axes position data tables opened and editable at the same time will be key for coordin this can be easily accomplished by opening access 2's position data table and then tiling them horizontally or vertically we go to window and then select our desired tile option this will work with as many axes as necessary while there are many ways to command motion with the xgb PLC any interpolated moves will require the use of the position data table this is also a way to accomplish a sequence of pre-programmed moves as well as a location to store multiple sets of moves in a multimove program understanding the position data table and its various fields and functions is key for motion programming with the xgb