Emerson 3051S Dokumentacja Pobierz pdf (Strona 62)

Reference Manual

00809-0200-4801, Rev CA

July 2010

Rosemount 3051S

4-2

STATUS Along with the measured or calculated PV value, every FOUNDATION fieldbus

block passes an additional parameter called STATUS. The PV and STATUS

are passed from the Transducer Block to the Analog Input Block. The

STATUS can be one of the following: GOOD, BAD, or UNCERTAIN. When

there are no problems detected by the self-diagnostics of the block, the

STATUS will be GOOD. If a problem occurs with the hardware in the device,

or, the quality of the process variable is compromised for some reason, the

STATUS will become either BAD or UNCERTAIN depending upon the nature

of the problem. It is important that the Control Strategy that makes use of the

Analog Input Block is configured to monitor the STATUS and take action

where appropriate when the STATUS is no longer GOOD.

LICENSING OPTIONAL

BLOCKS

The Rosemount 3051S has two licensable blocks. One is the Advanced

Diagnostic Block (ADB) that can be configured to detect plugged impulse

lines or monitor the mean or standard deviation of a process variable. The

other block is the Mass Flow Block which will calculate a fully compensated

Mass Flow. The license information for these blocks is in the Resource Block.

If there is a need for either of these blocks after the transmitter has been

purchased, the licensing can be done in the field. To license either of these

blocks:

1. Open the Resource Block and get the Output Board Serial Number

(OUTPUT_BD_SN).

2. Contact your local sales person and tell them you would like to place an

order for these functions and give them the Output board serial number.

3. Your sales person will contact the factory to obtain the license key.

4. When you are ready to license the block, set the Resource Block OOS.

5. Run the Method - Upgrade Device.

6. Return the Resource Block to Auto Mode.

Electrical shock can result in death or serious injury.

• Avoid contact with the leads and terminals. High voltage that may be present on

leads can cause electrical shock.

Performing a 'Restart with defaults' will set all function block information in the device to

factory defaults. This includes the clearing of all function block links and schedule, as well

as defaulting all Resource and Transducer Block user data (Advanced Diagnostic Block

algorithm configurations, LCD Transducer Block parameter configuration, etc.).

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Emerson 3051S Dokumentacja Strona 62