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Note
Assigning the display device
The first time that the “Virtual Graphics” functionality is enabled, the first display device
is automatically assigned to the client.
Resolution of the display device on the host / resolution of the client
The resolution and the color depth for the currently selected display device are shown on the right next to the diagram. If
changes to these parameters are desired, this is to be done through the Setup Dialog (see also the Configuration
interface section - Setup). Under Windows XP changes can also be done via the Windows display settings (see also the
section on Windows Display Settings ).
If the resolution of an assigned display device differs from the resolution of the associated client, the display behavior of
the client can be modified by setting or clearing the tick in the Fit to Client Screen Size box:
Fit to Client Screen Size not set:
If the resolution of the assigned display device is lower than the resolution of the client, the contents of the screen
are centered (with a black outline) on the client. If, on the other hand, the resolution of the assigned display device
is larger than the resolution of the client, the upper left-hand portion of the screen contents are displayed on the
client.
Fit to Client Screen Size set:
If the resolution of the assigned display device is lower than the resolution of the client, the contents of the screen
are enlarged and displayed using the whole of the client's screen. If the resolution of the assigned display device
is higher than the resolution of the client, the contents of the screen are shrunk and displayed using the whole of
the client's screen. The settings for the resolutions of all the devices involved are not changed by this. Only the
image that is to be displayed is appropriately enlarged or shrunk.
Note
Quality of the displayed image
If the enlargement or reduction ratios are not integers, the enlargement or reduction can
have negative effects on the quality of the displayed image.
Transfer protocol for graphical data - Connection Settings
The protocol used to transfer graphical data can be set separately for each client. Data transmission via TCP is preset by
default. If TCP has been selected, graphical data is sent separately to every single client. This multiplies the data rate by
the number of clients. If, on the other hand, data transmission via UDP (UDP-Multicast) has been selected for one or
more clients, that means that the graphical data associated with the display device is transmitted over the network once ,
and all the clients that are assigned to this display device, and where data transmission via UDP has also been set, can
receive this data.
Data transmission via UDP thus has the advantage that the network bandwidth used is reduced to a minimum. A
disadvantage of data transmission via UDP, as compared with data transmission via TCP, is a higher susceptibility to
interference. In the event of a faulty transmission via UDP, it therefore follows that it is helpful to select TCP as the
transfer protocol. Because, however, this multiplies the bandwidth used by the number of clients, this can have a
negative effect on performance. This will happen if the required bandwidth is greater than the bandwidth that is available.
In cases of this sort, the performance of all the CP-Link 3 functionalities (Virtual USB, Virtual Serial Ports, Virtual
Graphics) are affected.
- CP-Link 3 1
- TABLE OF CONTENTS 2
- Notes on the documentation 3
- Safety instructions 4
- Documentation issue status 5
- Functioning 7
- Software variants 9
- Technical data 10
- Installation - Host 11
- Page 12 12
- Page 13 13
- Page 14 14
- Page 15 15
- Page 16 16
- Installation - Client 17
- Page 18 18
- Installation under Windows CE 19
- Color depth adjustment 20
- Uninstallation 21
- Configuration interface 22
- Display Devices 23
- Miscellaneous 23
- Page 24 24
- Page 25 25
- Edit the client list 26
- Page 27 27
- Add Client 28
- Remove Client 29
- Page 30 30
- Client Configuration 31
- HID focus 32
- Lock symbol 32
- Page 33 33
- USB Device Filters 34
- Page 35 35
- Page 36 36
- Elo touch panel 37
- Graphics 38
- Page 39 39
- Client Explorer 40
- Page 41 41
- Page 42 42
- Page 43 43
- Network Topology 44
- Page 45 45
- Page 46 46
- Page 47 47
- Firewall Configuration 48
- USB Device Filter Lists 49
- Page 50 50
- Windows Display Settings (XP) 51
- Page 52 52
- DirectX / OpenGL 53
- CP-Link 3 Shell Extension 54
- Set the HID focus manually 55
- Page 56 56
- CP-Link 3 ADS Interface 57
- CP-Link 3 Service 58
- Page 59 59
- Page 60 60
- Page 61 61
- Page 62 62
- Page 63 63
- Setting up RT Ethernet: 64
- Accessing Bus Coupler inputs: 64
- Page 65 65
- Page 66 66
- Page 67 67
- Page 68 68
- Page 69 69
- Page 70 70
- Update of TcUsb.sys 71
- Page 72 72
- CP-Link 3 LaunchApp 73
- Hints for cabling 74
- Comments 75
- Troubleshooting 76
- Page 77 77
- Support and Service 78
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