Contemporary Controls Metasys JC-MER-CXB, Руководство пользователя, Страница: 34 / 58

TD060100-0MA
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Debugging ARCNET Failures
Use standard Metasys debugging tools to diagnose and correct
suspected ARCNET failures. The
JC-MER-CXB
displays message
statistics. The router should increment the ARCNET message counter
(broadcast) when it is connected to any ARCNET NCM or workstation.
This counter will increment even if multiple subnets are not defined.
If this counter does not increment, there
may be a problem with the
router itself.
Debugging Router Failures
Several of the difficulties discussed in this section may be caused by
a
global DDL file
that is inaccurate or has not been downloaded
.
Therefore, before
going on, verify that the current global file is
up-to-date and fully
downloaded.
JC-MER-CXB Does Not Run When Booted
The
configuration screen
should be examined for errors.
Status Screen Indicates Failure Number 1 13
One or more
JC-MER-CXB unit
s were offline when this router
started. Normal communication resumes when the other routers
come online.
Status Screen Indicates Failure Number 101
This is caused by the customer’s existing LAN Router being offline.
Verify that the existing LAN Router IP address is correct. Check
with the customer’s LAN manager to determine the condition of the
existing LAN Router.
Status Screen Indicates Invalid Messages
1. An operator tried to access an NCM defined in the DDL, but the
NCM is on a subnet that
doe
s not
appear
in the
configuration
screen
. Update the
screen
to include the undefined subnet.
2. The Metasys Network generated a message that contained an
invalid address. Write down the message information that
appears on the screen and call Field Support Services.