Endress+Hauser Cerabar M - Page 214

Commissioning with the FF configuration program Cerabar M, Deltabar M, Deltapilot M
214 Endress+Hauser
Acknowledge Option/
ACK_OPTION
Options
Index: 23
Data type: bit string
Access: auto, man, OOS
Use this parameter to specify the process alarm to be acknowledged automatically as
soon as it is detected by the fieldbus host system. If the option is activated for a process
alarm, this process alarm is acknowledged automatically by the fieldbus host system.
Options:
• HiHiAlm: upper critical limit value alarm
• HiAlm: upper limit value alarm
• LoLoAlm: lower critical limit value alarm
• LoAlm: lower limit value alarm
• BlockAlm: block alarm
The message has to be acknowledged via the Block Alarm/BLOCK_ALM parameter,
UNACKNOWLEDGE element for process alarms for which automatic confirmation is
not active.
Factory setting:
The option is not active for any process alarm, i.e. every process alarm message must
be acknowledged manually.
Alarm Hysteresis/
ALARM_HYS
Entry
Index: 24
Data type: float
Access: auto, man, OOS
Enter hysteresis value for the upper and lower alarm value or critical alarm value.
The hysteresis affects the following alarm or critical alarm limit values:
• High High Alarm/HI_HI_ALM: upper critical alarm limit value
• High Alarm/HI_ALM: upper alarm limit value
• Low Alarm/LO_ALM: lower alarm limit value
• Low Low Alarm/LO_LO_ALM: lower critical alarm limit value
A0030423
Fig. 52: Illustration of the output value Output/OUT with limit values and
hysteresis as well as the alarms High High Alarm/HI_HI_ALM,
High Alarm/HI_ALM, Low Alarm/LO_ALM and Low Low Alarm/LO_LO_ALM
Input range:
0.0 to 50.0 % with regard to the range of the Output Scale/OUT_SCALE group
( ä 211).
Factory setting:
0.5 %
Analog Input Block
Parameter Description
ALARM_HYS
ALARM_HYS
ALARM_HYS
ALARM_HYS
t
t
t
t
t
1
0
1
0
1
1
0
0
HI_ALM
LO_ALM
HI_LIM
LO_LIM
OUT
HI_HI_LIM
LO_LO_LIM
HI_HI_ALM
LO_LO_ALM