VNC Server Management

Click VNC Management on the Solution Explorer to enable VNC Server. Enabling VNC requires you to create a strong password, and to causes the controller to request a password when a VNC client requests access. The option 'Enabled (No Password) is disabled.

Note that up to 16 VNC clients can connect to a PLC; if the connection is via UniCloud, the maximum number of connections is 8.

 

Note that in Hardware Configuration, the following options are available for VNC sessions: 

• Override the VNC Configuration

• UniStream PLC and UniStream Built-in: you can select either Landscape or Portrait.
  Rotation is set to 90% by default.
  

• Enable visible pointer control and touch input functionality, ensuring compatibility with UniCloud. 
  

 

You can assign a password and Management level to VNC Server via your control program:

1. Place a Management> Change VNC Server Password function block in your Ladder.
2. Click the function block name and assign a data block.

	Parameter Name	Purpose
A	Execute	Executes the function
B	New Password	Set a string to contain the password value.
C	Level	Click the parameter and select the Management Level: •  View Only or •  Full Control
D	Status	Status 0 = Finished successfully 1.    = CPU in progress 2.    = Panel in progress -1 = Password change failed - password must be 6-8 characters and include: •    At least 1 digit •    At least 1 lower case English letter •    At least 1 upper case English letter. •    Contain only digits and English characters (No special characters, or other language letters) -4 = RC error -6 = service requested while already running, cannot answer such a request