User manual

APPENDIX H: FAQ 99
SUBJECT:
QUESTION:
ANSWER:
My PZCIM chain disappeared
when I turned off a computer
and it reappeared 20 seconds
later. What happened?
The Master CIM may have been
turned off. If this is the case then
a new CIM became the Master
and the database had to be rebuilt.
This is normal operation.
I only see some of my
P2ZCIMs. What is going on?
This can happen for a variety of
reasons. Listed below are some
of the common techniques for
fixing this issue.
1. Wait a couple of
minutes. The Master
CIM may be temporarily
confused due to
Resizing,
Communication Address
conflicts, Multiple
Masters, etc...
2. Make sure that all the
CIMs in the chain have
power.
3. Check all the cables.
4. Make sure the terminator
is in place.
5. Are there any CIMs in
the chain, which do not
have Communication
Addresses? CIMs
without Communication
addresses will beep once
every minute. The LED
will flash on and off
rapidly. If this is the
case, check the Chain
Size. Resize if
necessary.
6. If none of these
techniques work, try
refreshing the ZCIM
chain.
I can’t see all of the P2CIM
names, but the status seems
correct. How can I fix this?
The Master CIM may have been
confused. Usually the chain will
fix itself, if the user waits a
couple of minutes. If that does
not work, issue the Refresh
command.
It took awhile for the P2CIM to
be reported as off. Why?
Due to the occurrence of Data
Collision, a CIM status must be
checked 3 times to determine
whether or not it is off. The
detection can be quicker if the
size of the chain is roughly
proportional to the number of
CIMs in the chain. Resize the
chain to optimize the
performance.