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16
Installation
17
TriStar Meter 2 Operator’s Manual
Step 2 - MeterBus Network Connections
After all TriStar controllers have been programmed with
unique MeterBus addresses, the controllers must be net-
worked together using one or more
MeterBus Communication
Hubs
(HUB-1). Be careful not to overload a single TriStar in
the system with too many meters, hubs, or other MeterBus de-
vices. If the system will have multiple meters, wire each meter
to a different TriStar. If possible, do not connect a meter to the
same TriStar that provides power to the hub(s).
Following are a list of network rules and example networks.
Network Rules
A maximum of 15 devices are allowed on a single MeterBus net-
work. TriStar digital meters are not included in the device count.
Ports 1 - 4 on the MeterBus Communication Hub are isolated
ports. There is no power output on these ports.
Ports A & B are not isolated from each other, but are isolated from
ports 1-4.
A TriStar must be connected to
Input Power Port B
to power the
hub. When linking multiple hubs,
Power Out Port A
is connected
to
Input Power Port B
of the following hub. (see Example Network
# 3, pg. 20)
DO NOT connect a TriStar to Power Out Port A
Connect each additional TriStar in the system to ports 1 through 4
Avoid connecting more than two Hubs, Meters, Relay Drivers
or other devices to a single TriStar meter port. See the example
networks for more details.
tings out fi rst and then edit them. If one of the standard bat-
tery settings is used (most common), click “Create New”.
Click “Next” until the
3.
Communications Settings
dialog ap-
pears. Change the MeterBus address to the desired ad-
dress.
Click “Next” until the end of the wizard. Then click the Pro-
4.
gram button to load the new settings. Connect the TriStar
with a serial cable to the computer, choose the connection
settings, and click “Next” to program the controller.
Repeat steps 1-4 for each TriStar in the system, program-
5.
ming each controller with addresses 3, 4, 5, etc. A maximum
of 15 TriStar controllers are possible on a single MeterBus
network.
NOTE:
The controller does not have to be confi gured to
use custom settings. When the MeterBus address is
changed in custom settings memory, the programmed
address is used for all modes of operation.