Endress+Hauser PROline Prosonic Flow 93 Function Manual page 201

PROline Prosonic Flow 93 FOUNDATION Fieldbus
Endress+Hauser
PID function block (PID controller) / base index 810
Parameter Write access
with operating
mode
(MODE_BLK)
BKCAL_IN ROUT - RCAS -
CAS - AUTO -
MAN - OOS
BKCAL_OUT read only
BLOCK_ALM ROUT - RCAS -
CAS - AUTO -
MAN - OOS
BLOCK_ERR read only
BYPASS MAN - OOS
6 PID function block (PID controller)
Description
Displays the analog input value and status copied in the case of
cascade control from the BKCAL_OUT output of the downstream
function block.
The cascade control is initialised with this value to ensure
bumpless switching of the operating mode.
Displays the analog output value and output status transferred in
the case of cascade control to the BKCAL_IN input of the
upstream function block.
The cascade control is initialised with this value to ensure
bumpless switching of the operating mode.
Displays the current block status with information on pending
configuration, hardware or system errors, including details of the
alarm time (date, time) when the error occurred.


Note!
If the option of the alarm has not been enabled in the
ACK_OPTION parameter, the alarm can only be acknowledged
via this parameter.
Displays the active block error.
Display:
OUT OF SERVICE
The block has the status "Out of Service".
This parameter can be used to activate and deactivate
calculation of the manipulated variable by the PID control
algorithm.
Options:
Unitialized
OFF
Bypass deactivated: the manipulated variable determined by the
PID control algorithm is output via the OUT parameter.
ON
BYPASS activated: the value of the setpoint value SP is output
directly via the OUT parameter.


Caution!
The BYPASS parameter is enabled in the controller options
(CONTROL_OPTS parameter). This must be set before
commissioning.
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