Remote Access: Accessing a PLC via PC

Use VisiLogic to activate access a remote Vision controller and:

You can access:

 

Note

In addition to using VisiLogic to access a remote Vision, Unitronics provides a stand-alone utility called Remote Access.  This utility can also access Unitronics M90/91 and Jazz controllers. It may be freely downloaded from http://www.unitronics.com.

Accessing a PLC via VisiLogic

Before you can access a controller, you must establish a communication link:

Direct Connection: PC-Controller

Accessing a Networked Controller

Accessing a Controller via Modem

After completing the preceding steps according to your communication type, proceed as follows:

  1. Select a connection type using the drop-down selection box on the toolbar.

  1. Click the On-line Test mode button or press <F9> to enter On-Line Test mode; the left Ladder rail turns red and real-time values are displayed in the Output window.

  2. Click the Remote Access button on the On-line Test toolbar to display the remote controller on your PC screen. You can toggle the controller image on and off using <Shift>+<F9>.

  1. Remotely operate the controller's HMI by using:
    - Your PC keyboard, pressing arrow, alphanumeric, and function keys <F1> to <F8>). Note that the Vision <ESC> key is the <E> key on the PC keyboard
    - Your mouse to click keypad keys on the Remote Access image on the PC screen. In the case of touch-screen models, you can also click on-screen objects.

To enter Information Mode, press the <i> key on your PC keyboard, or by clicking it on-screen with your cursor.

 

 

Remote Access options

Use the options to set display options and refresh rate.

Note

The Zoom option can be activated only if you select Hide Keys. Zoom cannot be used with or V280 controllers.

 

Improving Remote Access run times:

Cache files enable Displays to load more quickly. These files enable Remote access to refer to HMI elements stored in the PC, instead of taking them from the PLC. If you have been provided with a static HMI file, select it to improve Remote Access run times.

Monochrome Vision only

Color Vision only