Siemens SIMATIC S7-1200 Function Manual page 336

Instructions
9.2 PID_3Step
ErrorBits Description
( DW#16#...)
0200 Invalid value at "Input" parameter: Value has an invalid number format.
If automatic mode was active before the error occurred and ActivateRecoverMode = TRUE, PID_3Step
switches to "Approach substitute output value with error monitoring" or "Error monitoring" mode. As
soon as the error is no longer pending, PID_3Step switches back to automatic mode.
If pretuning, fine tuning, or transition time measurement mode and ActivateRecoverMode = TRUE were
active before the error occurred, PID_3Step switches to the operating mode that is saved in the Mode
parameter.
0400 Calculation of output value failed. Check the PID parameters.
If automatic mode was active before the error occurred and ActivateRecoverMode = TRUE, PID_3Step
switches to "Approach substitute output value with error monitoring" or "Error monitoring" mode. As
soon as the error is no longer pending, PID_3Step switches back to automatic mode.
If pretuning, fine tuning, or transition time measurement mode and ActivateRecoverMode = TRUE were
active before the error occurred, PID_3Step switches to the operating mode that is saved in the Mode
parameter.
0800 Sampling time error: PID_3Step is not called within the sampling time of the cyclic interrupt OB.
If automatic mode was active before the error occurred and ActivateRecoverMode = TRUE, PID_3Step
remains in automatic mode.
If pretuning, fine tuning, or transition time measurement mode and ActivateRecoverMode = TRUE were
active before the error occurred, PID_3Step switches to the operating mode that is saved in the Mode
parameter.
If this error occurred during simulation with PLCSIM, see the notes under Simulating PID_3Step V2 with
PLCSIM (Page 137).
1000 Invalid value at "Setpoint" parameter: Value has an invalid number format.
If automatic mode was active before the error occurred and ActivateRecoverMode = TRUE, PID_3Step
switches to "Approach substitute output value with error monitoring" or "Error monitoring" mode. As
soon as the error is no longer pending, PID_3Step switches back to automatic mode.
If pretuning, fine tuning, or transition time measurement mode and ActivateRecoverMode = TRUE were
active before the error occurred, PID_3Step switches to the operating mode that is saved in the Mode
parameter.
2000 Invalid value at Feedback_PER parameter.
Check whether an error is pending at the analog input.
The actuator cannot be moved to the substitute output value and remains in its current position. In man-
ual mode, you can change the position of the actuator only with Manual_UP and Manual_DN, and not
with ManualValue.
If automatic mode was active before the error occurred, ActivateRecoverMode = TRUE, and the error is
no longer pending, PID_3Step switches back to automatic mode.
If pretuning, fine tuning, or transition time measurement mode and ActivateRecoverMode = TRUE were
active before the error occurred, PID_3Step switches to the operating mode that is saved in the Mode
parameter.
4000 Invalid value at Feedback parameter. Value has an invalid number format.
The actuator cannot be moved to the substitute output value and remains in its current position. In man-
ual mode, you can change the position of the actuator only with Manual_UP and Manual_DN, and not
with ManualValue.
If automatic mode was active before the error occurred, ActivateRecoverMode = TRUE, and the error is
no longer pending, PID_3Step switches back to automatic mode.
If pretuning, fine tuning, or transition time measurement mode and ActivateRecoverMode = TRUE were
active before the error occurred, PID_3Step switches to the operating mode that is saved in the Mode
parameter.
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Function Manual, 03/2017, A5E35300227-AC
PID control