Samson foundation 3787, Монтаж и эксплуатация, Страница: 69 / 96

BYPASS S
Index: 17
Access:
r, w in MAN, O/S
Option:
Default:
This parameter allows the calculation of the manipulated variable by means of the PID
control algorithm to be switched on or off.
Unintialized Same as ON
OFF Bypass switched off: the manipulated variable determined by the
PID control algorithm is issued over the OUT parameter.
ON BYPASS switched on: the value of the reference variable SP is
issued directly over the OUT parameter.
OFF
Note: On setting "Uninitialized", the block remains in the "O/S" mode.
To activate the bypass (ON), the bypass must be enabled in the CONTROL_OPTS
parameter.
CAS_IN N
Index: 18
Access:
r, w
Shows/defines the analog reference variable and its status taken over from an
upstream connected Function Block.
CONTROL_OPTS S
Index: 13
Access:
r, w in MAN, O/S
Option:
Default:
Used to select the available controller options to determine the automation strategy.
Bypass Enable
Direct Acting
Track Enable
Track in Manual
PV for BKCAL_OUT
No OUT Limits in Manual
None
DV_HI_ALM D
Index: 64
Access:
r, w
Shows status of alarm for the high deviation including details about alarm time (date,
time) and about the value which triggered the alarm.
The controlled variable exceeds the reference variable by more than the value
determined in the DV_HI_LIM parameter.
Note: Additionally, the active block alarm can be manually acknowledged in this
parameter group.
DV_HI_LIM
S
Index: 57
Access:
r, w
Default:
Used to input the limit for the high deviation. If the controlled variable exceeds the
reference variable by this value, the deviation alarm DV_HI_ALM is generated.
3402823466 x 10
38
DV_HI_PRI
S
Index: 56
Access:
r, w
Input:
Determines the action to be taken when the high deviation alarm (DV_HI_LIM) is
exceeded.
0 The violation of the limit for the high deviation is not evaluated.
1
No message issued when a violation of the limit for the high deviation occurs.
EB 8383-1 EN
69
Parameter description