This function is used in Python Scripting.

Description

Sets the connection mode for the Client. Normally a Client runs in mode 3, which is read-write. You may wish to change this to mode 2, which is read-only, which will only allow reading and subscribing to Tags, and running SELECT queries. Tag writes and INSERT / UPDATE / DELETE queries will not function. You can also set the connection mode to mode 1, which is disconnected, all Tag and query features will not work.

Client Permission Restrictions

This scripting function has no Client Permission restrictions.

Syntax

system.util.setConnectionMode(mode)

  • Parameters

Integer mode - The new connection mode: 1 = Disconnected, 2 = Read-only, 3 = Read/Write.

  • Returns

Nothing

  • Scope

Vision Client

Code Examples
Code Snippet
# This example, which could go in a project's startup script, checks the current username 
# and sets the connection mode to read-only if it is the "guest" user.
 
username = system.security.getUsername()
if "guest" == username.lower():
   # Set "guest" user to read-only mode.
   system.util.setConnectionMode(2)
else:
   system.util.setConnectionMode(3)
Keywords

system util setConnectionMode, util.setConnectionMode