Datasat AP20 Installation And Operating Manual page 92

The screen displays a series of automation buttons, one for each automation output signal (GPO), and a
circle above it that represents the signal input (GPI) state (GPO19 and 20 are outputs only and do not
have an input indicator circle). The input indicator is white when the signal is high or just unconnected.
The input indicator turns green when there is a low signal applied to the pin.
To verify that the AP20 is properly receiving an input from an external source you would
need to make the external device send a low signal on that pin. Then confirm that the signal is
received by the AP20 by checking if the corresponding circle turns green.
Example: The button at right illustrates when receiving an input signal on
GPIO1.
To test an output signal, press the automation button. It creates a low pulse
on the corresponding output pin. The button turns green in conjunction with the output signal
being low.
Example: The button at right when GPIO1 has been selected. Note that the
circle will also turn green after pressing the button, indicating that it is reading
the low signal on the same pin.
4.5.5 Automation Serial Port Setup
On the Serial tab, select the Baud rate and data bits settings for the automation interface. Touch the drop
down list to open it, then use the adjustment knob to select.
Menu (System) > Automation > Serial
Figure 76. Automation Serial Port Setup
AP20 Installation & Operating Guide
AP20 Installation and Operating Guide
Document # 9301H39200 Ver. 1.2
Page 91