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Message Based Settings:IO Protocol

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
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Short name: IO Prot

Requires: Base Development System

Classes: TCP/IP Socket, GPIB BoardInterface, USB Instr, Instr, VXI/GPIB-VXI MBD Instr, GPIB Instr, USB Raw, Serial Instr

Specifies which protocol to use. In VXI, you can choose normal word serial or fast data channel. In GPIB, you can choose normal or high-speed HS-488 transfers. In serial, TCP/IP, or USB, you can choose normal transfers or 488.2-defined strings. In USBTMC, you can choose normal or vendor-specific transfers. The default is Normal.


1 Normal
3 GPIB/HS488
4 Serial-TCPIP-USB/488 Strings
5 USBTMC/Vendor-Specific


The following table lists the characteristics of this property.

Data type
Permissions Read/Write


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