Agilent Technologies FS2010 Guide de l'utilisateur télécharger pdf (Page 50)

50 Agilent VISA User’s Guide

3 Programming with VISA

\" Sends the ASCII double quote character.

\\ Sends a backslash character.

Table 14 Examples of Expressions and Matches

Example Expression Sample Matches

GPIB?*INSTR Matches GPIB0::2::INSTR, GPIB1::1::1::INSTR, and

GPIB-VXI1::8::INSTR

GPIB[0-9]*::?*INSTR Matches GPIB0::2::INSTR and GPIB1::1::1::INSTR but

not GPIB-VXI1::8::INSTR

GPIB[0-9]::?*INSTR Matches GPIB0::2::INSTR and GPIB1::1::1::INSTR but

not GPIB12::8::INSTR

GPIB[^0]::?*INSTR Matches GPIB1::1::1::INSTR but not GPIB0::2::INSTR

or GPIB12::8::INSTR

VXI?*INSTR Matches VXI0::1::INSTR but not

GPIB-VXI0::1::INSTR

GPIB-VXI?*INSTR Matches GPIB-VXI0::1::INSTR but not

VXI0::1::INSTR

?*VXI[0-9]*::?*INSTR Matches VXI0::1::INSTR and GPIB-VXI0::1::INSTR

ASRL[0-9]*::?*INSTR Matches ASRL1::INSTR but not VXI0::5::INSTR

ASRL1+::INSTR Matches ASRL1::INSTR and ASRL11::INSTR but not

ASRL2::INSTR

(GPIB|VXI)?*INSTR Matches GPIB1::5::INSTR and VXI0::3::INSTR but not

ASRL2::INSTR

(GPIB0|VXI0)::1::INSTR Matches GPIB0::1::INSTR and VXI0::1::INSTR

?*INSTR Matches all INSTR (device) resources

?*VXI[0-9]*::?*MEMACC Matches VXI0::MEMACC and GPIB-VXI1::MEMACC

VXI0::?* Matches VXI0::1::INSTR, VXI0::2::INSTR, and

VXI0::MEMACC

?* Matches all resources

Table 13 Descriptions of Special Characters and Operators

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 159 160

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Agilent Technologies FS2010 Guide de l'utilisateur Page 50