Endress+Hauser Proline Promass 83 - Alarm Detection and Processing

Device Functions Proline Promass 83 FOUNDATION Fieldbus 2 Resource Block
Endress+Hauser 107
The parameter WRITE_LOCK shows the status of the hardware write protection. The following
statuses are possible:
The parameter BLOCK_ERR indicates whether a simulation is possible in the Analog Input and
Discrete Output function block.
2.4 Alarm detection and processing
Process alarms provide information on particular block statuses and block events. The status of the
process alarms is communicated to the fieldbus host system via the parameter BLOCK_ALM. The
parameter ACK_OPTION specifies whether an alarm must be acknowledged via the fieldbus host
system.
The following process alarms are generated by the Resource Block:
Block process alarms
The following block process alarms of the Resource Block are shown via the parameter
BLOCK_ALM:
•OUT OF SERVICE
• SIMULATE ACTVE
Write protection process alarm
If write protection is disabled on the FOUNDATION Fieldbus I/O board, then prior to
communicating the change of status to the fieldbus host system the alarm priority specified in the
parameter WRITE_PRI is checked. The alarm priority specifies the action taken when the write
protection alarm WRITE_ALM is enabled.
!
Note!
• If the option of a process alarm has not been enabled in the parameter ACK_OPTION, this
process alarm only has to be acknowledged in the parameter BLOCK_ALM.
• The parameter ALARM_SUM shows the current status of all the process alarms.
• LOCKED Device data cannot be modified via the FOUNDATION Fieldbus
interface.
• NOT LOCKED Device data can be modified via the FOUNDATION Fieldbus
interface.
• Simulation Active Simulation possible in the Analog Input function block via the
SIMULATE parameter and in the Discrete Output function block
via the SIMULATE_D parameter.