DNC menu item

Application

With the DNC menu item you can grant or restrict access to the control (e.g., connections over a network).

Description of function

The DNC area contains the following icons:

Icon

Meaning

dncIcon1

External access to the control is active

NewTabIcon-active

Add computer-specific connection

edit_table

Edit computer-specific connection

deleteIcon

Delete computer-specific connection

DNC area

In the DNC area you use toggle switches to activate the following functions:

Switches

Meaning

DNC access permitted

Permit or block all accesses to the control through a network or a serial connection

TNCopt full access allowed

Depending on the machine, permit or block access for diagnostics or initial setup software

Host computer operation

Pass command control to an external host computer, for example to transfer data to the control; or end host computer operation

If host computer operation is active, the control displays the Host computer is active message in the info bar. You cannot use the Manual and Program Run operating modes.

You cannot activate host computer operation while running an NC program.

Secure connections for user

In the Secure connections for user area you activate the following functions:

Row

Meaning

Setup permitted

If the toggle switch is active, client applications can establish a secure connection for the current user.

Certificate management

In this row you open the Certificate and keys window.

SSH-secured DNC connection

Computer-specific connections

If the machine manufacturer has defined the optional machine parameter CfgAccessControl (no. 123400), then in the Connections area you can permit or block access for up to 32 connections defined by you.

The control shows the defined information in a table:

Column

Meaning

Name

Host name of the external computer

Description

Additional information

IP address

Network address of the external computer

Access

  • Permit
  • The control permits network access without confirmation.

  • Inquire
  • The control asks for confirmation upon a network access attempt. You can choose whether to permit or block the access once or always.

  • Deny
  • The control does not permit any network access

Type

  • Com1
  • Serial interface 1

  • Com2
  • Serial interface 2

  • Ethernet
  • Network connection

Active

If a connection is active, the control displays a green circle. If a connection is inactive, the control displays a gray circle.

Notes

  • In the machine parameter allowDisable (no. 129202) the machine manufacturer defines whether the Host computer operation toggle switch is available.
  • In the optional machine parameter denyAllConnections (no. 123403) the machine manufacturer defines whether the control permits computer-specific connections.