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Model DMM7510

7½ Digit Graphical Sampling Multimeter Reference Manual Section 6:

SCPI command reference

DMM7510-901-01 Rev. B / May 2015 6-41

:DIGital:READ?

This command reads the digital I/O port.

Type Affected by Where saved Default value

Query only

Not applicable

Usage

:DIGital:READ?

Details

The binary equivalent of the returned value indicates the value of the input lines on the digital I/O port.

The least significant bit (bit B1) of the binary number corresponds to digital I/O line 1; bit B6

corresponds to digital I/O line 6.

For example, a returned value of 42 has a binary equivalent of 101010, which indicates that lines 2, 4,

6 are high (1), and the other lines are low (0).

An instrument reset does not affect the present states of the digital I/O lines.

All six lines must be configured as digital control lines. If not, this command generates an error.

Example

:DIG:READ?

Assume lines 2, 4, and 6 are set high when

the I/O port is read.

Output:

This is binary 101010

Also see

Digital I/O bit weighting (on page 3-57)

Digital I/O port configuration (on page 3-49)

Keithley DMM7510 Reference Manual

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