How can I pass the following visa TCPIP constructor by IP address variable.
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The expression:
PS1_obj = visa('NI','TCPIP0::192.168.200.50::inst0::INSTR')...it works as a literal expression but when I try to pass in a variable for the IP address the visa constructor errors.
Example:
ipaddr = '192.168.200.50'
PS1_obj = visa('NI','TCPIP0::%s::inst0::INSTR',ipaddr)...with variable declaration for the IP address.
Error using visa (line 293)
Invalid property: '192.168.200.50' specified.
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Réponses (2)
Walter Roberson
le 19 Jan 2019
Use sprintf to construct the character vector. The visa() function itself has no provision for substitution of strings.
1 commentaire
Walter Roberson
le 21 Jan 2019
PS1_obj = visa('NI', sprintf('TCPIP0::%s::inst0::INSTR',ipaddr) )
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