Contemporary Controls Metasys JC-MER-CXB, Руководство пользователя, Страница: 26 / 58

TD060100-0MA
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4. Change the subnet and node addresses for the device in the
Metasys database
by updating the DDL
G
lobal file
, compiling it
and downloading it to all devices.
5. Physically attach the device to its new ARCNET segment.
6. You do not need to make any changes to the
JC-MER-CXB. The
router
automatically routes messages
correctly based on the new
subnet
address for the device.
Adding a New Metasys ARCNET Subnet
When a new device cannot be attached to one of the existing ARCNET
segments, a new subnet and a new
JC-MER-CXB must be added. To
add a new subnet, do the following:
1. Determine a location for the new
JC-MER-CXB
.
It must have
access to electrical power, a connection to the
customer’s Ethernet
network, and a connection to the new ARCNET segment.
2. Select a new subnet address for the new ARCNET segment.
The subnet address must be unique (not previously used for a
different ARCNET segment).
3. Obtain Internet address information for the new
JC-MER-CXB
from the customer’s communications/computer support staff.
The
information should include an IP address for the
JC-MER-CXB
,
the subnet mask that is used, and an IP address for the customer’s
existing LAN Router (if the
customer’s Ethernet network uses
LAN Routers).
4. Obtain another
JC-MER-CXB unit.
5. Install the new
JC-MER-CXB
and attach
it to the Ethernet network
and to the ARCNET network.
Verify that the JC-MER-CXB is
communicating by
“pinging” it from another Ethernet-equipped
device. This can
be done from another JC-MER-CXB that has a
terminal emulator attached or from any Ethernet device that has
TCP/IP communications software. For example, to ping a new
router with IP address 192.168.22.236, enter:
ping 192.168.22.236
The response to the PING command should indicate that the
new router is communicating.