Micro Motion CDM100M, Configuration And Use Manual

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Option Description Setup
Polling The meter polls an external de-
vice for temperature data. This
data will be available in addi-
tion to the internal RTD tem-
perature data. a. Set Line Temperature Source to Poll for External Value .
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary .
Option Description
Poll as Primary No other HART masters will be on the
network. The Field Communicator is not
a HART master.
Poll as Secondary
Other HART masters will be on the net-
work. The Field Communicator is not a
HART master.
d. Set
External Device Tag
to the HART tag of the temperature
device.
e. Click
Apply
.
Digital communica-
tions A host writes temperature data
to the meter at appropriate in-
tervals. This data will be availa-
ble in addition to the internal
RTD temperature data. a. Set Line Temperature Source to Fixed Value or Digital Communica-
tions .
b. Click Apply .
c. Perform the necessary host programming and communica-
tions setup to write temperature data to the meter at appro-
priate intervals.
3. Choose the method you will use to supply pressure data, and perform the required
setup.
Option Description Setup
Polling The meter polls an external de-
vice for pressure data. a. Set Line Pressure Source to Poll for External Value .
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary .
d. Set External Device Tag to the HART tag of the temperature
device.
Digital communica-
tions A host writes pressure data to
the meter at appropriate inter-
vals. a. Set
Line Pressure Source
to
Fixed Value or Digital Communications
.
b. Perform the necessary host programming and communica-
tions setup to write pressure data to the meter at appropri-
ate intervals.
Postrequisites
If you are using external temperature data, verify the external temperature value displayed
in the Inputs group on the ProLink III main window .
The current pressure value is displayed in the External Pressure field. Verify that the value is
correct.
Need help? If the value is not correct:
Configure process measurement
Configuration and Use Manual 49