TCP/IP Settings:Keep-Alive Packets

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
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Short name: TCP KeepAlive

Requires: Base Development System

Classes: TCP/IP Socket, TCP/IP Instr, Instr

Specifies whether to use keep-alive packets on TCP connections. Setting this property to TRUE requests that a TCP/IP provider enable the use of keep-alive packets on TCP connections. After the system detects a dropped connection, VISA returns a lost connection error code on subsequent I/O calls on the session. The time required for the system to detect the dropped connection depends on the system and is not settable. The default is FALSE.


The following table lists the characteristics of this property.

Data type
Permissions Read/Write


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