MEASure Subsystem

The MEASure commands are used for the Isolated Digital Input part of the HP E1459A. These commands return data corresponding to the current value of the input signals. Refer to Chapter 2 for more examples of using the MEASure Subsystem.

Syntax

MEASure:DIGital:DATAn[:type][:VALue]?

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:DIGital:DATAn[:type]:BITm?

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MEASure:DIGital:DATAn[:type] [:VALue]?

Returns the current data for the specified Port n as a signed integer.

Parameters

Parameter Name

Parameter Type

Range of Values

Default

 

 

 

 

DATAn

Numeric

0,1, 2, 3 for type WORD; 0, 2 for LWORd

0

TYPE

discrete

WORD (Ports 0, 1, 2, or 3)

WORD

 

 

LWORd (for Ports 0 or 2)

 

 

 

 

 

 

 

 

 

Comments • For TYPE WORD, the data is returned as a signed 16 bit integer. Example values returned include: +0, +1, +32767, -32768. Specify port as either DATA0, DATA1, DATA2, or DATA3.

•For TYPE LWORd, the data is returned as a signed 32 bit integer with Port 0 or Port 2 in the least significant bytes. Specify port as DATA0 or DATA2.

•Default is Port 0. :DATA is equivalent to :DATA0.

Example MEAS:DIG:DATA 1:WORD:VAL?

Queries 16-bit data from Port 1

MEAS:DIG:DATA 0:LWORD:VAL?

Queries 32-bit word from Ports 0 and 1

HP E1459A SCPI Command Reference 49