The Triggers
6.8.2Digital Output
The digital output function is defined by the
•Without Pullup: The port will act as a solid state relay (open/close functions) The GPI/O maximum voltage is 30V DC and the maximum current is 50mA
•With Pullup: the port can be used as a TTL positive logic output (open: ~2.4V; closed:~0.2V)
Setting the Digital Output
Define the GPI/O in the port manager:
Once defined as Digital Output, the GPI/O port will appear in Port Switch
Figure 92: The GPI/O Defined as Digital Output
6.8.3Analog Input
The analog input accepts an analog signal from an auxiliary device:
The pullup and threshold features are disabled.
The trigger is activated once when the voltage is within a certain range of voltages. To add a GPI/O Trigger:
1.Click the Add GPI/O Trigger button. The following window appears:
Figure 93: The GPI/O Trigger Properties Window
2. Select the trigger behavior:
46 | KRAMER: SIMPLE CREATIVE TECHNOLOGY |