(a) Does the device have power? The blue LEDs inside the case, visible through the air
vent slots, will both be on if there is power present.
(b) Are any LEDs flickering inside ValuPoint? The yellow poll-for-master LED and green
token-pass LED inside the ValuPoint should be flickering some color rather constantly.
Green indicates token passing, yellow indicates poll for master. Constant yellow (never
green) means no other devices are responding. Constant off (both colors) means other
devices are generating traffic on the network, but it is not being recognized by the
ValuPoint as anything it can respond to. No token passing activity means either there
are no other devices on the network, or there is a low level communications problem,
namely one or more communication parameters are mismatched. There could also be
a wiring problem. Check for reversed polarity on the data lines. If uncertain, just try
swapping them – no physical harm will be done.
14.5 System Fault Indications
The red LED visible inside the ValuPoint case, viewed through the vent slots, is the
system fault indicator. It will be on during initial power-up boot mode operation, but
should otherwise be off except for indicating communications errors such as request
for non-existent object.
Following a device reinitialize command from BACnet, the system fault LED will remain
on for approximately 10 seconds, then turn off (or indicate system fault).
During normal operation, a watchdog timer is always running to force a soft restart
the system in the event of a software hang. Should the system restart as a result of
watchdog timeout, the system fault LED will flicker at a very rapid rate for
approximately 10 seconds. An intentional software hang followed by watchdog timeout
is used to force a restart upon receiving a restart command from BACnet. Therefore
the indications are the same. However, if the restart indication is observed without
sending the restart command from BACnet, please notify technical support.
System fault indication past the initial few seconds of boot mode followed by possible
soft restart indication would consist of the red LED being mostly on, flashing off briefly
some number of times, followed by a longer pause remaining on. Count the number of
‘off’ flashes. This is the fault code.
Fault codes are as follows:
(1-6) Processor abort codes
(7) System configuration CRC failed
(8) Bad configuration parameter found in system configuration
(9) EEPROM read failed
(10) EEPROM write failed
(11) EEPROM lock failed
(12) Object allocation failed
Report any of these to technical support. There are both a primary copy and backup
14. Trouble Shooting
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