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Trouble-Shooting Flowchart
58 • • • • Chapter Five - Troubleshooting
The flowchart below may help you quickly isolate problems and direct you to
solutions. If you work through the flowchart and still experience difficulty, refer to
the Troubleshooting chart in the next section.
If the M MI is not updating,
m ake sure the correct version
of the D DE Server is running.
No
Check W W Logger for
current device name.
Device is either not
configured or is
deactivated.
Stop the D DE Server. C heck
View: Configuration: DeviceInfo:
DevieNam e. Add the device
name if not present or activate
by enabling the check box.
Yes
Is the device present?
(Make sure spelling is
correct.)
No
Check if the device is
Stop D DE Server
activated. Note the port
and add device.
num ber.
Check W W Logger
for any messages
A third-party application
is using the port. Close
the application and
restart the client.
The DDE Server
Yes
accepted the link
messages w ith the
and is trying to
collect data.
Check W W Logger
Com m unication Problem s.
Check the following:
M odbus A ddress
Baudrate on the port
Cables
Is the com m port connected?
If using Port Server, check for
network problem s.
Device specific settings
No
for that port.
Yes
Close all applications
and restart them . C heck
to see if the problem
still exists.
No
or the display for
timeouts on that
device.
Server is busy collecting
data for other devices.
Yes
W ait a few seconds.
Check if the
No
mnem onic is
present in the
Server.
You have the wrong
Yes
configuration file.
DDE Server User's Guide
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