1
2
3
HART Communicator Online
11:
22:
33:
AXFA11 :
1 Device Setup
2PV
3PV AO
4PV Span
SAVE
HART Communicator
1Offline
2Online
3Frequency Device
4Utility
8. OPERATION VIA HART COMMUNICATOR
Example: Communication when set in the multidrop mode.
The HART Communicator searches for field devices that are set in the multidrop mode when the HART Communicator is turned on.
When the HART Communicator is connected to one of these field devices, tag will be displayed.
Select the desired field device. After that, normal communication with the selected field device is possible. The communication speed, however, is slow in this case.
To communicate with another field device, open display 3 , and select “Online”.
Display 1 will appear. Repeat the above operation.
Exiting Multidrop Mode
First, open the “Poll addr” display, and assign the address to 0.
Then, open the “Polling” display, and select “Never Poll”.
NOTE
If the above exiting method is carried out in the reverse order, the “Online” menu cannot be called up.
8.3.4.9Example 6 of Other Settings: Write Protection
The “Write Protection” function is used to inhibit parameter changes to the AXFA11. For a more detailed description, refer to Chapter 6. Parameter Description, and Chapter 9.Main- tenance.
NOTE
When the write protection function is activated, data setting changes in all param- eters of the AXFA11 are inhibited and cannot be changed using either the HART Communicator or the AXFA11 front panel key switches.
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