Emerson 644 manual Configuration Examples, Transducer Block

Reference Manual

00809-0400-4728, Rev AA June 2011

Rosemount 644

Configuration Examples

4-wire, Pt 100 α = 385

AI1 = Process Temperature

AI2 = Terminal Temperature

Transducer Block

If Host System Supports Methods:

1.Click on Methods

2.Choose Sensor Connections

3.Follow on-screen instruction.

If Host System Doesn’t Not Support Methods:

1.Put transducer block into OOS mode.

a.Go to MODE_BLK.TARGET

b.Choose OOS (0x80)

2.Go to SENSOR_CONNECTION.

a.Choose 4-wire (0x4)

3.Go to SENSOR_TYPE.

a.Choose PT100A385

4.Put the transducer block back into Auto mode.

AI Blocks (Basic Configuration)(1)

AI1 as Process Temperature

1.Put the AI Block into OOS mode.

a.Go to MODE_BLK.TARGET

b.Choose OOS (0x80)

2.Go to CHANNEL

a.Choose Sensor 1

3.Go to L_TYPE

a.Choose Direct

4.Go to XD_Scale

a.Choose UNITS_INDEX to be °C

5.Go to OUT_SCALE

a.Choose UNITS_INDEX to be °C

b.Set the 0 and 100 scale to be the same as the

PRIMARY_VALUE_RANGE

6.Put the AI Block back into Auto mode.

7.Follow Host Procedure Download Schedule into Block.

(1)Configure a minimum of four parameters to get a value out of the AI Block.

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