Configuring The Pid Controller - Siemens SIMATIC S7 System Manual
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If several errors are pending, the values of the error codes are displayed by means of binary
addition. The display of error code 0003, for example, indicates that the errors 0001 and
0002 are also pending.
Table 9- 17
ErrorBit parameters
ErrorBit (DW#16#...)
0000
0001
0002
0004
0008
0010
0020
0040
0080
0100
0200
0400
800
1000
9.2.4
Configuring the PID controller
The parameters of the technological object determine the operation of the PID
controller. Use the icon to open the configuration editor.
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
Description
No error
The Input parameter is outside the limits of the process value.
Input > Config.InputUpperLimit or
Input < Config.InputLowerLimit
Invalid value for the "Input_PER" parameter. Determine whether there is an error at the
analog input.
Fine tuning: Oscillation of the process value (input) could not be maintained.
Pretuning: The process value (input) is too close to the setpoint. Start the fine tuning.
The setpoint must not be changed during pretuning at the operating point.
Pretuning is set to automatic mode, which is not allowed during fine tuning.
Pretuning: The setpoint is too close to the limits for the output value.
Pretuning: Incorrect configuration of the limits for the output value.
An error during fine tuning: resulted in invalid parameters.
Invalid value for the Input parameter:
Value outside the number range (less than -1e
Value with invalid number format
Invalid value for the Output parameter:
Value outside the number range (less than -1e
Value with invalid number format
Sampling time error: The PID_3STEP instruction is called in a program cycle OB (such as
OB 1), or the settings were changed for the cyclic interrupt OB.
Invalid value for the Setpoint parameter:
Value outside the number range (less than -1e
Value with invalid number format
102BTechnology instructions
9.2 PID control
or greater than 1e
)
12
12
or greater than 1e
)
12
12
, or greater than 1e
)
12
12
337
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