Hardware manual

Impact Reference Guide Main Toolbar
4-3 Datalogic Automation Inc.
This connection is not the same as the one provided by the Connector control. When you connect with this
button, CPM is connected to the device so that the VPM Task(s) in the device can be displayed. You can then
make links between the task tool’s properties and the Control Panel. Links to VPM cannot be created if this
button is disconnected.
When a link is made between the VPM task and a control on the Control Panel, if there is no Connector con-
trol for that device, one is automatically added to the panel and connected to the device. If there is already a
Connector control, the link is added and its Connected value set to True. If there are no links between CPM
and the displayed task, no Connector control is needed.
In contrast, the Connector control connects the Control Panel to the device so linked values can be displayed
and set. This connection is made when you set the Connector control’s Connected property to True.
When you open a Control Panel Application file, you may need to set the Connector control’s Connected
property to True so data values and images are updated with current VPM values.
The following scenarios may occur while creating links:
Sharing a device with VPM
The first VPM program to connect to a device acquires exclusive editing privileges on that device. When a
program on the device is being edited, CPM control panel designers can connect to the device and create
links, but they cannot modify data in vision program properties. (See “Special Case Editing” on page 4-3
below.) When the first VPM disconnects from the device, a CPM control panel can then connect to the
device.
Special Case Editing
When CPM is running on the same client PC as the VPM program that is editing on the device, CPM can
modify (set data) in vision programs. To use this special case, start VPM and load the program that you want
to edit. Then, start CPM and load the control panel you want to edit. You can now modify vision program
property values and test the control panel.
New Control Panel Application
Connect Button Connector Control
Exists
Link Added Result
Connected No No VPM Tree can be displayed
Connected No Yes Connector Control added and con-
nected; link is added; VPM Tree can
be displayed
Connected Yes No VPM Tree is displayed; Connector
control may or may not be connected
Connected Yes Yes Link is added; VPM Tree can be dis-
played
Disconnected Yes Not Possible VPM Tree cannot be displayed; Con-
trol panel’s connected status deter-
mined by Connector control
Disconnected No Not Possible VPM Tree cannot be displayed; Con-
trol panel is not connected