Write Protection And Simulation; Alarm Detection And Processing; Parameter Resource Block - Endress+Hauser iTEMP TMT 165 FOUNDATION Fieldbus Betriebsanleitung

FOUNDATION Fieldbus temperature transmitter
Index Parameter
38 ACK_OPTION
37 ALARM_SUM
4 ALERT_KEY
Endress+Hauser

11.2.3 Write protection and simulation

Write protection of the device parameters and simulation in the Analogue Input Function
Block can be locked or unlocked via a jumper setting on the FOUNDATION Fieldbus
I/O board (see page 97).
The parameter WRITE_LOCK (see page 117) shows the status of the hardware write
protection. The following statuses are possible:
– LOCKED = device data cannot be modified
– UNLOCKED = device data can be modified
The parameter BLOCK_ERR (see page 114) indicates whether a simulation is possible
in the Analogue Input Function Block.
– Simulate Active = simulation is possible in the AI function block

11.2.4 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 (see page 114). The parameter ACK_OPTION (see page 113)
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 (see page 114):
– OUT OF SERVICE
– SIMULATE ACTVE

11.2.5 Parameter Resource Block

The following table shows all the available parameters of the Resource Blocks.
Resource Block
Write access with
operating mode
(MODE_BLK)
AUTO - OOS
AUTO - OOS
Static/read only
This parameter is used to specify whether a process alarm must be
acknowledged at the time of alarm recognition by the fieldbus host system. If
this option is enabled the process alarm is acknowledged automatically.
Factory default: The option is not enabled for any alarm,
the alarms must be acknowledged.
Displays the current status of the process alarms in the Resource Block.
2
Note!
In addition the process alarms can also be disabled in this parameter group.
Entry of the identification number of the plant unit.
This information can be used by the fieldbus host system for sorting alarms
and events.
User input: 1...255
Factory default: 0
Description
11 Appendix
113