National-instruments FP-3000 Manual do Utilizador descarregar pdf (Página 39)

Chapter 3 Example Applications

FieldPoint FP-3000 User Manual 3-4 www.ni.com

3. Since the transmitter is wired to the terminals associated with channel

zero on the module, set the

FIELDPOINT_CHANNEL

parameter to

Channel 0

Set the Input Range

1. Click on the

FP_AI_110_RANGE

parameter on the

I/O Config

tab.

2. Set the parameter to

3.5–21 mA

, since this range most closely

matches the 4–20 mA that you expect from your transmitter.

Scale the Reading

1. Set the

XD_SCALE

parameter on the Scaling tab, which tells the block

the range of values to expect from the transducer. Enter the following:

XD_SCALE

EU_100 0.020

EU_0 0.004

Units_Index A

Decimal 3

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 154 155

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National-instruments FP-3000 Manual do Utilizador Página 39