Direction of Control Action
Direction of Control Action
The direction of the control action is determined by the Direct Acting setting in
CONTROL_OPTS (Table 48).
Value of Direct Acting
Control Action Bypass
The PID control computation can be bypassed to set the SP value in the control output
OUT (Figure 72). Setting BYPASS to ON bypasses the PID control computation.
Table 48 PID Control Parameters
The output increases when the input PV is
True
The output decreases when the input PV is
False
Figure 72 Control Action Bypass
Resulting Action
greater than the setpoint SP.
greater than the setpoint SP.
161
PID Function Block