Output value as of V2 (S7-1200, S7-1500) - PID

PID_Compact offers three output values. Your actuator will determine which output value you use.

• Output_PER

  The actuator is triggered via an analog output and controlled with a continuous signal, e.g. 0...10V, 4...20mA.

• Output

  The output value needs to be processed by the user program, for example because of non-linear actuator response.

• Output_PWM

  The actuator is controlled via a digital output. Pulse width modulation creates minimum ON and minimum OFF times.

Procedure

Proceed as follows to use the analog output value:

1. Select the entry "Output_PER (analog)" in the drop-down list "Output".

2. Select "Instruction".

3. Enter the address of the analog output.

Proceed as follows to process the output value using the user program:

1. Select the entry "Output" in the drop-down list "Output".

2. Select "Instance DB".

   The calculated output value is saved in the instance data block.

3. For the preparation of the output value, use the output parameter Output.

4. Transfer the processed output value to the actuator via a digital or analog CPU output.

Proceed as follows to use the digital output value:

1. Select the entry "Output_PWM" in the drop-down list "Output".

2. Select "Instruction".

3. Enter the address of the digital output.