Emerson MICRO MOTION 2700 Manual de Instalação descarregar pdf (Página 118)

108 Transmitter Configuration and Use: Series 1000 and 2000 Transmitters

Pressure Compensation, Temperature Compensation, and Polling continued

With ProLink II

To configure polling with ProLink II:

1. Verify that pressure compensation or external temperature compensation has been enabled (see

Section 9.2 and Section 9.3).

2. If you are polling for temperature, open the

Configuration panel from the ProLink menu,

click the

Temperature tab, and ensure that the External Temperature value has not been set.

The default value is 32.00 °F (0 °C). Click Apply if necessary.

3. Click the

Polled Variables tab.

4. For Polled Variable 1:

a. Click the arrow in the

Polling Control box, and select a HART polling method from the

list. Choose

Primary if the external device will probably be accessed by another device

acting as a secondary master (e.g., a Communicator). Choose

Secondary if the external

device will probably be accessed by another device acting as a primary master.

Note: If you are configuring both Polled Variable 1 and Polled Variable 2, use the same Polling

Control setting for both. If you do not, Poll as Primary will be used for both devices.

b. Click

Apply. The additional polling parameters are now available for configuration.

c. In the

External Tag box, enter the HART tag of the external device that you will poll.

d. Click the arrow in the

Variable Type box, and select a process variable.

e. Click

Apply.

5. Repeat these steps for Polled Variable 2, if required.

With a Communicator

To configure polling with a Communicator:

1. Verify that pressure compensation or external temperature compensation has been enabled (see

Section 9.2 and Section 9.3).

2. Press

4, 1.

3. Select

Polling Setup.

4. Select

Poll Control 1.

a. Select a HART polling method from the list. Choose

Primary if the external device will

probably be accessed by another device acting as a secondary master (e.g., a

Communicator). Choose

Secondary if the external device will probably be accessed by

another device acting as a primary master.

b. Press ENTER.

Note: If you are configuring both Polled Variable 1 and Polled Variable 2, use the same Polling

Control setting for both. If you do not, Poll as Primary will be used for both devices.

5. Select

Ext Dev Tag 1.

a. Enter the HART tag of the external device to be polled.

b. Press ENTER.

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