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Network Management Card User’s Guide 59
Troubleshooting
How to Correct Communication Lost Problems
Overview
PowerChute plus may constantly or frequently report an Unable to
Communicate with
UPS
condition when PowerChute plus and the
Management Card have been installed together on a
UPS
.
Constant Unable
to Communicate
Problem
1. Ensure that the cable between the computer and the
UPS
(or the
expansion chassis) is securely connected at both ends.
2. Ensure that the
UPS
(or the expansion chassis) serial port is
connected to the same computer port used to connect the computer
to the
UPS
when PowerChute plus was installed.
3. If Step 1 or Step 2 did not find the problem, reset the Management
Card.
4. If the problem persists, disconnect (or remove) the Management
Card and restart PowerChute plus. If the problem persists, go to
Step 5, and if the problem clears, go to Step 6.
5. If the problem persisted, see your PowerChute plus documentation
to remove and then reinstall PowerChute plus. If the problem
continues, see APC Global Support on page 61 for information
about how to contact APC for technical support.
6. If problem cleared, reinstall the Management Card. If the problem
returns, see APC Global Support on page 61 for information about
how to contact APC for technical support.
Intermittent
Unable to
Communicate
Problem
1. To eliminate an interrupt request (
IRQ
) conflict, the most likely cause
of the problem, disconnect (or remove) the Management Card from
the
UPS
and restart PowerChute plus. If the problem persists, go to
Step 2, and if the problem clears, go to Step 3.
2. If the problem persisted, see your PowerChute plus documentation
to remove, and then reinstall, PowerChute plus. If the problem
continues, see APC Global Support on page 61 for information
about how to contact APC for technical support.
3. If the problem cleared, stop PowerChute plus.
4. Use an ASCII text editor to edit the [ups] section of the
PowerChute plus initialization file (pwrchute.ini or powerchute.ini,
depending on the PowerChute plus operating system):
- Add a TimeoutFactor=40 parameter to the file.
- Change the UpsPollInterval value to =6 (default value is 4).
5. Reconnect (or reinstall) the Management Card and restart
PowerChute plus. If the problem continues, see APC Global
Support on page 61 for information about how to contact APC for
technical support.