Chapter 3 PLC System Configuration & Settings (2) The present values of the parameters are displayed in the PV column, but they are not updated timely. After users click in the window, the system will retrieve the present values again, and the values retrieved will be displayed in the PV column. (3) If users want to change the values in the data registers assigned to the parameters, they can type the parameters to which the data registers are assigned. If users want to change the values of parameters, setting values in the SV column.
Users can only type the setting values in the SV cells for the they can type the setting values in the SV cells for the parameters, and click after the typing of the setting values is complete. The values of the parameters will be written into the data registers assigned to the parameters. *. Before the value of a parameter is changed, users have to refer to the instructions for the module to make sure of the range of values which are allowed. 3-253