Endress+Hauser iTEMP TMT 165 FOUNDATION Fieldbus Betriebsanleitung Seite 154

11 Appendix
Index Parameter
35 RCAS_OUT
24 RESET
33 ROUT_IN
36 ROUT_OUT
34 SHED_OPT
8 SP
154
PID Function Block (PID controller)
Write access with
operating mode
(MODE_BLK)
Dynamic/read only Displays the analogue output value and output 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 provide
smooth transfer.
2
• Value statement and unit of PV_SCALE
• If the setting for the end of the scale is changed in the parameter
PV_SCALE this value should be modified accordingly.
• This parameter is only active in operating mode RCAS.
ROUT - RCAS - CAS - Entry of the time constant for the integral action (I-term).
AUTO -
MAN - OOS Factory default:
2
The integral function is disabled by entering 0 seconds.
ROUT - RCAS - CAS - In this parameter the actuating variable provided by the fieldbus host system
AUTO - (value and status) is read in and displayed.
MAN - OOS
2
• Value statement and unit of OUT_SCALE
• This parameter is only active in operating mode ROUT.
• The PID algorithm is no longer executed.
Displays the analogue output value and output status of the actuating
Dynamic/read only
variable transferred to the fieldbus host system in the course of cascade
control. The cascade control is initialised with this value to provide smooth
transfer.
2
• Value statement and unit of OUT_SCALE
• This parameter is only active in operating mode ROUT..
Static Selects the action taken if the monitoring time is exceeded (see parameter
SHED_RCAS, SHED_ROUT on page 117) in operating mode RCAS or ROUT.
During the monitoring time parameter updating between the fieldbus host
system and the PID Function Block is checked.
If the parameters are not being updated, on expiry of the monitoring time the
PID Function Block switches from operating mode RCAS or ROUT to the
mode selected here.
Options:
Factory default:
AUTO - MAN - OOS Entry of the analogue setpoint value.
User input:
2
If the setting for the end of the scale is changed in the parameter PV_SCALE
this value should be modified accordingly.
FOUNDATION Fieldbus temperature transmitter
Description
Note!
+ INF
Note!
Note!
Note!
Uninitialised
NormalShed_NormalReturn
NormalShed_NoReturn
ShedToAuto_NormalReturn
ShedToAuto_NoReturn
ShedToManual_NormalReturn
ShedToManual_NoReturn
ShedToRetainedTarget_NormalReturn
ShedToRetainedTarget_NoReturn
Uninitialised
Range and unit of PV_SCALE ±10%
Note!
Endress+Hauser