Endress+Hauser PROline Prosonic Flow 93 Function Manual page 213

PROline Prosonic Flow 93 FOUNDATION Fieldbus
Endress+Hauser
PID function block (PID controller) / base index 810
Parameter Write access
with operating
mode
(MODE_BLK)
PV_SCALE OOS
RATE ROUT - RCAS -
CAS - AUTO -
MAN - OOS
RCAS_IN ROUT - RCAS -
CAS - AUTO -
MAN - OOS
RCAS_OUT read only
RESET ROUT - RCAS -
CAS - AUTO -
MAN - OOS
6 PID function block (PID controller)
Description
Definition of the measuring range (lower and upper limit), the
physical unit and the number of decimal places for the process
variable (PV).
Factory setting:
0...100%


Note!
If this parameter group is modified then the following parameters
should be checked and modified if necessary:
• DV_HI_LIM
• DV_LO_LIM
• HI_LIM
• HI_HI_LIM
• LO_LIM
• LO_LO_LIM
• RCAS_IN
• RCAS_OUT
• SP_LO_LIM
• SP_HI_LIM
• SP
Entry of the time constant for the derivative action (D-term)
Factory setting:
0 s
In this parameter, the analog setpoint value (value and status)
provided by the fieldbus host system is read in for internal
calculation of the manipulated variable and displayed.


Note!
• Value statement and unit of PV_SCALE.
• If the setting for the end of the scale is changed in the
PV_SCALE parameter this value should be modified
accordingly.
• This parameter is only active in the RCAS operating mode.
Displays the analog output value and status of the specified
setpoint value transferred to the fieldbus host system in the
course of cascade control. The cascade control is initialised with
this value to ensure bumpless switching of the operating mode.


Note!
• Value statement and unit of PV_SCALE.
• If the setting for the end of the scale is changed in the
PV_SCALE parameter this value should be modified
accordingly.
• This parameter is only active in the RCAS operating mode.
Entry of the time constant for the integral function (I-term).
Factory setting:
38
3402823466 x 10 s


Note!
The integral function is disabled by entering 0 seconds.
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