User manual

PID Loop Operation
(DL450 Only)
Maintenance
and Troubleshooting
8--48
PID Loop Operation (DL450 only)
DL405 User Manual, 4th Edition, Rev. A
The Data View window is a very useful tool which can be used to help tune your PID
loop. You can compare the variables in the PID View with the actual values in the
V--memory location with Data View.
A new Data View window can be opened in any one of three ways; the menu bar
Debug > Data View > New, the keyboard shortcut Ctrl+Shift+F3or the Data
button on the Status toolbar. By default, the Data View window is assigned Data1 as
the default name. This name can be changed for the current view using the Options
dialog. The following diagram is an example of a newly opened Data View. The
window will open next to the Ladder View by default.
The Data View window can be used just as it is shown above for troubleshooting y our
PID logic, and it can be most useful when tuning the PID loop.
The PID View can only be opened after a loop has been setup in your ladder program
and the programming computer is connected to the PLC (online). PID View is
opened by selecting it from the View submenu on the Menu bar, View > PID View .
The PID View can also be opened by clicking on the PID View button from the PLC
Setup toolbar if it is in view.
Use DirectSOFT 5
Data View with PID
View
Open a New Data
View Window
Open PID View