You can adjust the setting values for the PID instructions while monitoring the values in the [PID Monitor] window.
Please refer to the Settings Guide for details. 30.14.2.2 PID Monitor
Run the online monitor.
30.11.1 Online Monitoring Procedures
On the [View (V)] menu, point to [Work Space (W)] and then click [PID Monitor Window (M)]. The [PID monitor] window opens.
In [Target PID Variable], select the PID variable that you want to monitor. The PID instruction setting is displayed in a graph.
You can change the setting values while looking at the graph. When the setting value is changed, the data is written to the following devices.
Items on the Screen
Save in
Remarks
Target PID Variable
None
Displays PID variables selected.
Setpoint (SP)
Operand S1
Can be changed only when the instruction operand is a variable.
Tieback (TB)
Operand S3
Proportional Constant
Variable Format****.KP
Address Format U_****.KP
Set value (x 1000).
Integral Calculus Time
Variable Format ****.IT
Address Format U_****.IT
Differential Calculus Time
Variable Format ****.DT
Address Format U_****.DT
Processing Deadband Range
Variable Format ****.PA
Address Format U_****.PA
Bias
Variable Format ****.BA
Address Format U_****.BA
Frequency in Sampling
Variable Format ****.ST
Address Format U_****.ST
Click [Update] to update the graph.
Click [Graph] to change the graph display's Upper Limit, Lower Limit, and display Width settings.
