4-19
Transmitter Functions
The HART Communicator can test, configure, and format a
multidropped Model 8732C in the same way as it can a Model 8732C in
a standard point-to-point installation.
NOTE
The Model 8732C is set to poll address zero at the factory, allowing it to
operate in the standard point-to-point manner with a 4–20 mA output
signal. To activate multidrop communication, the transmitter poll
address must be changed to a number between 1 and 15. This change
deactivates the 4–20 mA analog output, sending it to 4 mA. It also
disables the failure mode alarm signal.
Auto Poll When the HART Communicator is powered up and auto polling is on, it
automatically polls the transmitter addresses to which it is connected.
If the address is 0, the HART Communicator enters its normal on-line
mode. If it detects an address other than 0, the communicator finds
each device in the loop and lists them by poll address and tag number.
Use the action keys to scroll through the list and select the transmitter
with which you need to communicate.
If a single connected device has an address other than zero and auto
polling is off, the device will not be found.
Poll Address Poll Address enables you to set the poll address for a multi-dropped
meter. The poll address is used to identify each meter on the multi-drop
line. Follow the on-screen instructions to set the address at a number
from 1 to 15. To set or change the flowmeter address, establish
communication with the selected Model 8732C in the loop.
HART Fast Keys
OFF LINE FCN
HART Fast Keys
1, 4, 4, 3, 1
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