Measurement-computing DAC488 v.1 Manual de usuario descargar pdf (Pagina 85)

DAC488 User’s Manual DAC488 Commands 79

S - System Defaults

TYPE

System Command

SYNTAX

Where

n = 0, 1, 2,

Restore the factory default command settings as the power on defaults.

Save the current command settings as the power on defaults.

Restore factory default Calibration Constants to NV-RAM.

Save current Calibration Constants in NV-RAM.

Return the last System Defaults command executed.

DESCRIPTION

The System Defaults (Sn) command may be used to save or restore a default setting for each command. The

System Defaults command is also used to save or restore the Calibration Constants.

All Calibration Constants and a power on default setting for each command are saved in an internal Non-Volatile RAM

(NV-RAM). Once Calibration Constants have been saved in the NV-RAM, they will be used whenever the DAC is

commanded to output a voltage. The command options saved in NV-RAM will be the default settings when the unit is

powered on.

Note: Issuing an S2 or S3 command without the calibration enable switch in the depressed position will cause a

Calibration Write Protected (E4) error. After calibration, the S3 command would be used to save the new

Calibration Constants in the NV-RAM.

EXAMPLE

PRINT#1,"CLEAR09"

Line 1: Reset the DAC488.

PRINT#1,"OUTPUT09;A0 C1

O1 P2 Y1 X"

Line 2: Configure port 2 as follows: Autorange disabled, Indirect Control mode,

Output Format in decimal bits, line feed (LF) terminator.

PRINT#1,"OUTPUT09;S1X"

Line 3: Save this configuration as the power on default configuration for port 2.

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 113 114

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Measurement-computing DAC488 v.1 Manual de usuario Pagina 85