Measurement-computing DAC488 v.1 Manuel d'utilisateur télécharger pdf (Page 74)

68 DAC488 Commands DAC488 User’s Manual

H - Offset Calibration

TYPE

Port Command

SYNTAX

Hval

Specifies Offset Calibration Constant for selected range and port, where

val

is a

value between -255 and +255.

Returns the Offset Calibration Constant for selected range and port.

DESCRIPTION

The Offset Calibration command programs the Offset Calibration Constant for the selected range and port. The Direct

Control (C0) mode must be selected when using this command. The value may be any number in the range ± 255.

Note: (1) Calibration Constants must be programmed while using the direct control mode (C0). (2) Autorange

must be disabled (A0) to program Calibration Constants. (3) The current programmed output voltage will

appear at the analog output upon receipt of this command.

EXAMPLE

PRINT#1,"OUTPUT09;C0 P1

A0 R2 H125 X"

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

±5 volt range, set offset for ±5 volt range to 125.

PRINT#1,"OUTPUT09;H?"

Line 2: Request current Offset Calibration Constant for port 1.

PRINT#1,"ENTER09"

INPUT#2,A$

PRINT A$

Line 5: Display shows: H+00125

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 113 114

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Measurement-computing DAC488 v.1 Manuel d'utilisateur Page 74