Siemens SIMATIC PG 720 P Manual page 41

Using a Mouse You can connect both a PS/2 and a serial mouse to the PG 720. When the
PG 720 is supplied, the mouse driver for the trackball and PS/2 mouse is
already loaded.
Connecting a PS/2
You can connect an external PS/2 mouse or another external pointing device
Mouse
to an additional PS/2-compatible mouse connector.
Figure 4-5
To connect the mouse, proceed as follows:
1. Switch off your device.
2. Open the port cover on the left-hand side panel.
3. Plug the cable of the PS/2 mouse or another external pointing device into
4. Secure the connector with the screws.
5. Switch on your PG 720 again.
Switching between
Once you have plugged in the external mouse and restarted your PG 720, the
Internal Trackball
internal trackball is deactivated and remains inactive until the PG 720 is
and External PS/2
powered up again without the external mouse.
Mouse
Table 4-1
No mouse
External mouse connected
PG 720 P Programming Device
C79000-G7076-C721-02
COM2
Port for
serial mouse
(connector)
Connecting a PS/2 Mouse
the mouse connector.
Trackball/External Mouse Mode
State Internal Trackball
Active
Deactivated
Installing and Operating the PG 720
Port for
PS/2 mouse
(socket)
External PS/2 Mouse
Active
4-7