Panasonic FP2-PP2T Technical Manual

17-3817.6.3 Positioning Data Setting AreasThey are the areas for setting positioning data. The positioning data for 4 axes can be set individually.The positioning data is stored in the table format of 625 points per axis.When executing the automatic operation (position control) with the positioning unit, specify the number ofthe positioning table that has been specified in advance, and start the position control. After the start-up,the motor is automatically controlled according to the settings of the table. There are the method thatcreates the positioning table using Configurator PM that is an exclusive setting tool, and the othermethod that writes the positioning table in a prescribed address by programs.There are the standard area of 600 points that is specified by No. 1 to 600, and the extended area of 25points that is specified by No. 10001 to 10025.The standard area is used when the setting values of the positioning table are predetermined. It can beset using Configurator PM, and can be rewritten from the programs, too. However, if the positioning tableis changed by the program, the caulculation is necessary to restructure the positioning data beforeexecuting the automatic operation. This function enables to read the positioning data of 600 points inadvance and to prepare for the start-up within the positioning unit, and enables to shorten the start-uptime for the positioning. When using Configurator PM to download the positioning data, the data isrestructured automatically, so the calculation is not necessary. However, the calculation is necessaryafter rewriting the poisitoning data from the program. The procedures for the calculation are as follows.1. Change the positioning table in the shared memory.2. Turn on the recalculation request contact (Y87) in the I/O area.3. Confirm the recalculation done contact (X7) is on (Confim the completion of the recalculation.)If the data is not recalculated after rewriting the positioning table by the ladder program, note that theoperation will be executed with the positioning table before the rewriting.The extended area is used when the setting values of the positioning table cannot be determined untiljust before executing the positioning operation. For example, in the application of alignment using animage processing, the moving distance is determined by the image processing. Therefore, thepositioning table cannot be determined until just before sarting the positioning operation. In that case, thepositioning table is set just before the start-up of the positioning. In the extended area, the positioningtable can be rewritten as needed, and the recalculation is not necessary. However, it is up to 25 tables,and Configurator PM cannot be used. The programs should be used to write the positioning table in theprescribed address in the shared memory. The start-up time is longer than the standard area, and whenperforming the P point control or C point control in the extended area, note that the start-up time variesdepending on the number of tables to be executed consecutively.How to use each area and the precautions are as below.How to use Numberof pointsTablenumberSetting usingConfigurator PMSetting usingladder programStandardareaArea to be used whenthe setting value of thepositioning table ispredetermined.600points 1 to 600 AvailableAvailable(Calculation forrestructuring isnecessary.)ExtendedareaArea to be used whenthe setting value of thepositioning table cannotbe determined until justbefore executing thepositioning operation.25 points10001to10025Not availableAvailable(Calculation forrestructuring isnot necessary.)