East Tester HART 475 User Manual page 11

八．Polling instrument
After starting up, the communicator will automatically poll the online device
with address 0.Select "polling device" from the project menu and it will enter the
option of polling device. If there are multiple instruments on the line at the same
time, you can ensure the communication with the required instruments through
single point and polling.The first item in the menu is multi-point polling. The
communicator will automatically poll all connected devices from address 0 to
address 15.The second item in the menu is single-point polling. You can choose any
address between 0 and 15 for communication.
If polling to the meter, it will go directly to the main menu.Otherwise, go
back to the original screen and re-select the polling address.Multi-point polling
always operates only on the first instrument (the instrument with a small address),
and single point polling only operate on the next instrument (the instrument with a
large address).When several devices are connected in the same loop, each device
1Muitipoint
2Single Point
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