Spectrum-controls 1769sc-IR6I Instrukcja Użytkownika Pobierz pdf (Strona 36)

4-4 Compact™ IO Isolated RTD/Resistance Module

User’s Manual Pub. 0300241-01 Rev. A

4.2.4 Selecting Data Formats (Bits 12 through 14)

This selection configures channels 0 through 5 to present analog data in any of the

following formats:

• Raw/Proportional Data

• Engineering Units x 1

• Engineering Units x 10

• Scaled for PID

• Percent Range

Table 4-3 (Channel Data Word Format)

Input

Type

Data Format

Engineering Units x 10 Engineering Units x 1

Scaled

For

PID

Proportional Counts Percentage

˚ Celsius ˚ Fahrenheit ˚ Celsius ˚ Fahrenheit

Pt 385 -200 to +850 -328 to 1562 -2000 to +8500 -3280 to 15620 0 to 16383 -32767 to 32767 0 to 10000

Pt 3916 -200 to +630 -328 to 1166 -2000 to +6300 -3280 to 11660 0 to 16383 -32767 to 32767 0 to 10000

10 Cu 426 -100 to +260 -148 to 500 -1000 to +2600 -1480 to 5000 0 to 16383 -32767 to 32767 0 to 10000

100 Ni 618 -100 to +260 -148 to 500 -1000 to +2600 -1480 to 5000 0 to 16383 -32767 to 32727 0 to 10000

120 Ni 672 -80 to +260 -112 to 500 -800 to +2600 -1120 to 5000 0 to 16383 -32767 to 32767 0 to 10000

604 NiFe 518 -100 to +200 -148 to 392 -1000 to +2000 -1480 to 3920 0 to 16383 -32767 to 32767 0 to 10000

150 ohm

0 to +1500

0 to +15000

0 to 16383 -32767 to 32767 0 to 10000

500 ohm

0 to +500

0 to +5000

0 to 16383 -32767 to 32767 0 to 10000

1000 ohm

0 to +1000

0 to +10000

0 to 16383 -32767 to 32767 0 to 10000

3000 ohm

0 to +3000

0 to +30000

0 to 16383 -32767 to 32767 0 to 10000

Note: The engineering units data formats represent real engineering temperature

units provided by the module to the controller. The raw/proportional counts, scaled-

for-PID and percent of full-scale data formats may yield the highest effective

resolutions, but may also require that you convert channel data to real engineering

units in your control program.

Raw/Proportional Data

The value presented to the controller is proportional to the selected input and scaled into

the maximum data range allowed by the bit resolution of the A/D converter and filter

selected. The raw/proportional data format also provides the best resolution of all the

data formats.

If you select the raw/proportional data format for a channel, the data word will be a

number between -32767 and +32767. For example, if a Pt 385 RTD is selected, the

When resistances are selected, the temperature setting is ignored and the input data is the same for either °C or

°F selection.

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