Siemens Simatic S7-1500

Using PID_3Step
5.3 PID_3Step V1
PID control
138 Function Manual, 03/2017, A5E35300227-AC
5.3
PID_3Step V1
5.3.1
Configuring PID_3Step V1
5.3.1.1
Basic settings V1
Introduction V1
Configure the following properties of the "PID_3Step" technology object under "Basic
settings" in the Inspector window or in the configuration window:
● Physical quantity
● Control logic
● Start-up behavior after reset
● Setpoint (only in the Inspector window)
● Process value (only in the Inspector window)
● Output value (only in the Inspector window)
● Position feedback (only in the Inspector window)
Setpoint, process value, output value and position feedback
You can only configure the setpoint, process value, output value and position feedback in the
Inspector window of the programming editor. Select the source for each value:
● Instance DB
The value saved in the instance DB is used.
Value must be updated in the instance DB by the user program.
There should be no value at the instruction.
Change via HMI possible.
● Instruction
The value connected to the instruction is used.
The value is written to the instance DB each time the instruction is called.
No change via HMI possible.