Measurement-computing DAC488 v.1 Manual do Utilizador descarregar pdf (Página 84)

78 DAC488 Commands DAC488 User’s Manual

R - Range Select

TYPE

Port Command

SYNTAX

Where

n = 0, 1, 2,

Select DAC Ground range. (DAC488 will output 0 volts only)

(Default) Select DAC ±1 volt range.

Select DAC ±5 volt range.

Select DAC ±10 volt range.

Returns DAC voltage range selection for selected port.

DESCRIPTION

The Range command specifies which output voltage range is used on the selected port. Autoranging must be

disabled (A0) when using the Range command, otherwise a command Conflict Error (E3) will occur. The bit resolution

is: 250 µV/bit, 1.25 mV/bit and 2.5 mV/bit for the ±1 volt, ± 5volt and ±10 volt ranges respectively.

Note: This command may not be used when Autoranging is enabled (A1) for the selected port.

EXAMPLE

PRINT#1,"CLEAR09"

Line 1: Reset the DAC488.

PRINT#1,"OUTPUT09;C0 P1 A0 R2

V4 X"

Line 2: Select Direct Control mode, select Port 1, disable

autoranging, select ±5 volt range, output 4 volts. The DAC488 will

output 4 volts on Port 1.

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Measurement-computing DAC488 v.1 Manual do Utilizador Página 84