29
SafeGuard Controller User Manual
MAN-0115 Rev 0
!
SECTION 4
4.0 SYSTEM DIAGNOSTICS
A
System Diagnostic Mode
shown in Figures 4.1 and 4.2 may be entered during normal
operation from the Setup menu. The entry menu indicates firmware revision and offers
useful routines for testing front panel LED’s, relays, serial ports and analog I/O. It is
exited manually by pressing
NEXT
and automatically if no keys are pressed for 5
minutes. It is very important to understand that
CHANNEL INPUT DATA IS NOT
PROCESSED DURING THE DIAGNOSTICS MODE
. It is possible to miss
important input values while utilizing this mode and appropriate safeguards should be in
place. However, the Diagnostics Mode can prove invaluable when testing I/O since
relays and analog outputs may be stimulated without driving inputs to precise levels.
Figure 4.1
!
