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LO_LIM
Index: 53
Access: r, w
Input:
Default:
LO_PRI
Index: 52
Access: r, w
Input:
Default:
MODE_BLK
Index: 5
Access: r, w
Display:
S
Input of the alarm limit for the low alarm (LO_ALM).
If the PV value exceeds this limit, the LO_ALM alarm status parameter is issued.
Range and limit of the PV_SCALE
38
-3402823466 x 10
S
Determines the action to be taken when the value falls below the low alarm limit
(LO_LIM).
0
The violation of the low alarm limit is not evaluated.
1
No message issued when a violation of the low alarm occurs.
2
Reserved for block alarms.
3...7
The violation of the low alarm is issued with the corresponding
priority (3= low priority, 7= high priority) to notify the user.
8...15
The violation of the low alarm is issued with the corresponding priority
(8= low priority,15= high priority) as a critical alarm.
0
S
Shows the actual operating mode of the PID Block, the target modes, permitted modes
supported by the PID Block and normal operating mode.
ROUT
RCAS
CAS
AUTO
MAN
OOS
The PID Block supports the following modes:
O/S (Out of Service)
The PID Algorithm of the Block is not executed. The last value or the value
determined during the active state fault is issued at the OUT parameter.
MAN (Manual)
The output value of the Block can be preset by the user directly over the
OUT parameter.
AUTO (Automatic)
The set point preset by the user is used on executing the PID algorithm via the
SP parameter.
CAS (Cascade)
The PID Function Block receives the reference variable for internal calculation
of the manipulated variable directly from an upstream connected Function
Block via CAS_IN. The internal PID algorithm is executed.
RCAS (Remote cascade)
The PID Function Block receives the reference variable for internal calculation
of the manipulated variable directly from the fieldbus host system via
RCAS_IN. The internal PID algorithm is executed.
ROUT (Remote output)
The PID Function Block receives the reference variable for internal calculation
of the manipulated variable directly from the fieldbus host system via
ROUT_IN. The manipulated variable is reissued over the OUT parameter,
without executing the internal PID algorithm.
Parameter description
73
EB 8383-1 EN
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