Program instructions
7.9 PID
S7-200 SMART
270 System Manual, 09/2015, A5E03822230-AC
Set the following loop parameters:
• Gain (Default value = 1.00)
• Sample Time (Default value =
1.00)
• Integral Time (Default value =
10.00)
• Derivative Time (Default value =
0.00)
You assign how the loop Process
Variable (PV) is to be scaled. You can
choose from the following options:
• Unipolar (default: 0 to 27648; can
edit)
• Bipolar (default: -27648 to 27648;
can edit)
• Unipolar 20% offset (range: 5530
to 27648; set and unchangeable)
• Temperature x 10 °C
• Temperature x 10 °F
In the Scaling parameter, you assign
how the loop setpoint (SP) is to be
scaled. Default is a real number be-
tween 0.0 and 100.0.
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