Measurement Computing DAC488 v.1 - Manual (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.
H? 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