Endress+Hauser iTEMP TMT 165 FOUNDATION Fieldbus Betriebsanleitung Seite 145

FOUNDATION Fieldbus temperature transmitter
Index Parameter
17 BYPASS
18 CAS_IN
13 CONTROL_OPTS
64 DV_HI_ALM
Endress+Hauser
PID Function Block (PID controller)
Write access with
operating mode
(MODE_BLK)
MAN - OOS This parameter can be used to activate and deactivate calculation of the
actuating variable by the PID control algorithm.
Options:
4
The parameter BYPASS is enabled in the controller options (parameter
CONTROL_OPTS). This must be set before commissioning.
ROUT - RCAS - CAS - Displays the remote setpoint value and status copied from an external
AUTO - function block in operating mode CAS. This value is shown in the unit of the
MAN - OOS parameter group PV_SCALE.
2
The remote setpoint value read in via the parameter CAS_IN is only used if
the PID Function Block is in operating mode CAS. In operating mode AUTO
the value of parameter SP is used as a setpoint value.
OOS Selects the available controller options for specifying the automation
strategy.
Selection: Bypass Enable
Factory default:
ROUT - RCAS - CAS - Status display of the alarm for the upper control deviation, including details
AUTO - of the time of the alarm (date, time) and the value that triggered the alarm.
MAN - OOS The controlled variable exceeds the setpoint value by more than the value
specified in the parameter DV_HI_LIM.
2
In addition the active block alarm can be acknowledged in this parameter
group.
Description
Uninitialized
OFF Bypass deactivated: the actuating variable
determined by the PID control algorithm
is output via the parameter OUT.
ON BYPASS activated: the value of the
setpoint value SP is output directly
via the parameter OUT.
Caution!
Note!
Activates the parameter BYPASS
Direct Acting
Direct effect
Track Enable
Activates tracking
Track in Manual
Operating mode MAN with active tracking
PV for BKCAL_OUT
Use value and status of the parameter PV for
the parameter BKCAL_OUT
No OUT Limits in Manual
No output restriction in operating mode MAN.
If the range limit value OUT_HI_LIM or
OUT_LO_LIM is exceeded or not reached, this has no
effect on the parameter OUT.
no option activated
Note!
11 Appendix
145