Method
Description
Setup
Polling
The meter polls an external de-
vice for pressure data.
a. Choose
Configure
>
Manual Setup
>
Measurements
>
External Inputs
>
Pressure
.
b. Set
Pressure Input
to
Enable
.
c. Choose
Configure
>
Manual Setup
>
Inputs/Outputs
>
External Device
Polling
.
d. Choose an unused polling slot.
e. Set
Poll 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.
f. Set
External Device Tag
to the HART tag of the external pres-
sure device.
g. Set
Polled Variable
to
Pressure
.
Digital communica-
tions
A host writes pressure data to
the meter at appropriate inter-
vals.
a. Choose
Configure
>
Manual Setup
>
Measurements
>
External Inputs
>
Pressure
.
b. Set
Pressure Input
to
Enable
.
c. Perform the necessary host programming and communica-
tions setup to write pressure data to the transmitter at ap-
propriate intervals.
Postrequisites
Choose
Service Tools
>
Variables
>
External Variables
and verify the values for External
Temperature and External Pressure.
Need help?
If the value is not correct:
•
Ensure that the external device and the meter are using the same measurement unit.
•
For polling:
-
Verify the wiring between the meter and the external device.
-
Verify the HART tag of the external device.
•
For digital communications:
-
Verify that the host has access to the required data.
-
Verify that the host is writing to the correct register in memory, using the correct data
type.
•
If necessary, apply an offset.
Configure process measurement
56
Micro Motion
®
Compact Density Meters (CDM)
Summary of Contents for CDM100M
Page 8: ...Getting Started 2 Micro Motion Compact Density Meters CDM ...
Page 12: ...Before you begin 6 Micro Motion Compact Density Meters CDM ...
Page 20: ...Configuration and commissioning 14 Micro Motion Compact Density Meters CDM ...
Page 26: ...Introduction to configuration and commissioning 20 Micro Motion Compact Density Meters CDM ...
Page 110: ...Integrate the meter with the control system 104 Micro Motion Compact Density Meters CDM ...
Page 116: ...Operations maintenance and troubleshooting 110 Micro Motion Compact Density Meters CDM ...
Page 124: ...Transmitter operation 118 Micro Motion Compact Density Meters CDM ...
Page 194: ...Using the transmitter display 188 Micro Motion Compact Density Meters CDM ...
Page 208: ...Using ProLink III with the transmitter 202 Micro Motion Compact Density Meters CDM ...