Software Instruction Manual

IQ–MSD Turbo 1.4 Advanced IQ System Software
Page 194
10.2 Using a Control Block to Monitor & Control a PSI
The simplest way to monitor or control a PSI is from its control block. There are only two controls (please refer to
Figure 10.1):
DSPI: The Data Signal Presence Indicator is an LED on the side of the PSI. It flashes whenever a data signal,
addressed to it, is received. It can be forced to stay on as an aid to troubleshooting by turning the DSPI control on.
Turning off the DSPI control restores the indicator to its normal function of blinking when a valid IQ command is
received by the PSI.
Aux: Toggles the PSI’s AUX port output on and off. The AUX port also has the ability to sense the presence of
an external signal. When a logic “high” is detected at the AUX connector, an asterisk (*) will appear beside it.
10.3 Using a Graphics Plate to Monitor & Control a PSI
A PSI can be monitored and controlled from a graphics but there are no ready-made GDMs (graphic display
modules) for a pocket serial interface. This means that you must manually create objects on the graphics plate for
that purpose. Figure 10.2 shows a very simple example.
In the above example a simple Container object was created and then an On/Off Button object was placed in it for
the DSPI control and the AUX port output control. Finally, a Text object was added above each button to label
them.
Fig. 10.2 Monitoring & Controlling a PSI from a Graphics Plate