Rosemount 848T Especificaciones descargar pdf (Pagina 32)

Reference Manual

00809-0100-4697, Rev GA

Section 3: Configuration

November 2014

Configuration

6. Set OUT_SCALE (MAI output scaling) to the appropriate upper and lower range values,

the appropriate sensor units, and display decimal point.

7. Place the MAI function block in auto mode.

8. Place the Input Selector (ISEL) function block in OOS mode by setting

MODE_BLK.TARGET to OOS.

9. Set OUT_RANGE to match the OUT_SCALE in the MAI block.

10. Set SELECT_TYPE to the desired function (Maximum Value, Minimum Value, First Good

Value, Midpoint Value, or Average Value).

11. Set the alarm limits and parameters if necessary.

12. Place the ISEL function block in auto mode.

13. Verify that the function blocks are scheduled.

Measuring temperature points individually

Example: Miscellaneous monitoring of temperature in a “close proximity” where each channel

can have different sensor inputs with different units and there are independent alarm levels for

each input.

1. Place the first Analog Input (AI) function block in OOS mode (set MODE_BLK.TARGET to

OOS).

2. Set CHANNEL to the appropriate channel value. Refer to “Alarm Priority Levels” on

page 31 for a listing of channel definitions.

3. Set L_TYPE to direct.

4. Set XD_SCALE (transducer measurement scaling) to the appropriate upper and lower

range values, the appropriate sensor units, and display decimal point.

5. Set OUT_SCALE (AI output scaling) to the appropriate upper and lower range values,

the appropriate sensor units, and display decimal point.

6. Set the alarm limits and parameters if necessary.

7. Place the AI function block in auto mode.

8. Repeat steps 1 through 7 for each AI function block.

9. Verify that the function blocks are scheduled.

Function

Block 1

Out

Function

Block 8

Out

Out_D

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 135 136

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Rosemount 848T Especificaciones Pagina 32