Contemporary Controls Metasys JC-MER-CXB, Руководство пользователя, Страница: 15 / 58

TD060100-0MA
1
5
4. Have the customer’s network communications staff assign IP
addresses and provide IP routing information for each
JC-MER-CXB
. Record this information on the
JC-MER-CXB
Planning Form B. (See Appendix A: Metasys Ethernet Router
Planning Forms.) Append the ARCNET
Subnet addresses from
Form A
to
F
orm B.
5. Using the
JC-MER-CXB
Planning Form B, configure
each
router by accessing its configuration screen. (See Chapter 3.)
6. Use the assigned subnet and node addresses to address each of
the Metasys NCMs and
PMI/OWS
s. When creating the DDL
files for the system, use the subnet and node addresses in the
NETWORK and GLOBAL DDL files.
Note: Since you are converting multiple standalone networks into
one large network, verify that no duplicate system names
exist. If duplicates exist, you must change them to unique
system names in both DDL and GPL.
If you are converting an existing system to use
JC-MER-CXB units,
you’ll need to update and recompile the DDL files when the
routers
are installed. Be sure to recompile all of the DDL files, including
all of the NC files. Failure to recompile all of the DDL files
and
download ALL devices
could result in application failures
for those
NCMs located on new ARCNET segments.
Design Restrictions
1. The system should not use any realtime control strategies that
require data transfers across the Ethernet network. Because the
Ethernet network may experience delays and down time caused
by non-Metasys equipment, the network is subject to variations
in performance.
Realtime control strategies can be used between NCMs located
on a common ARCNET segment.
2. Use caution when defining critical alarm reports that must cross
the Ethernet. Avoid alarms related to life safety because they
may not arrive at the Operator Workstation or printer if the
customer’s Ethernet network is down.
Note:
Global and Model DDL file must be the same at all of the
OWS (Operator Work Stations).