Contemporary Controls Metasys JC-MER-CXB, Руководство пользователя, Страница: 35 / 58

TD060100-0MA
35
Metasys Devices Do Not Respond
If any other node on the same ARCNET segment responds normally,
the router is not at fault. The problem could be caused by a Metasys
device failure or an ARCNET cable problem. Check the device for
any malfunctions, and use troubleshooting information from the N1
Local Area Network Technical Bulletin (in
LIT-636017
).
All the Devices on One ARCNET Segment Do Not Respond
1. If other ARCNET segments are working, the problem is isolated
to the failing segment. Use
ping
to find out if the suspect
router
responds to Ethernet messages.
(Firewalls may cause issues with
2. If the router responds, look at the ARCNET cable and Metasys
equipment.
3. If the router does not respond, look at the router and the
Ethernet network. (See
JC-MER-CXB
Does Not
Respond to Ping
Requests, further on.)
Multiple ARCNET Segments Do Not Respond
This could be caused by a router configuration problem or an
Ethernet problem.
Use
testnet
to determine which routers respond.
Verify that the configuration
screen entries are
correct. Check the
Metasys DDL files for correct subnet/node addresses. Check the
configuration at each failing router. Check
the Ethernet LAN for
failures.
JC-MER-CXB Does Not Respond to Ping Requests
This could be caused by problems with the router or problems on the
Ethernet LAN. Check the router configuration
screen to see
that
all
address
ing is
correct for this router. Use
ipstat
to look for errors
in
connecting to the Ethernet. If the router is running and appears to be
configured properly, the problem is probably due to an Ethernet
failure. Check with the network administrator to verify
that the
network has not been changed and
is
functional.
the ping command.)