Debugging Arcnet Failures; Debugging Router Failures; Jc-Mer-Cxb Does Not Run When Booted; Status Screen Indicates Failure Number 113 - Contemporary Controls Metasys JC-MER-CXB User Manual

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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.

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.

The configuration screen should be examined for errors.

One or more JC-MER-CXB units were offline when this router

started. Normal communication resumes when the other routers

come online.

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.

1. An operator tried to access an NCM defined in the DDL, but the

NCM is on a subnet that does 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.

TD060100-0MA

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