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Doc # E107706 V1.25 11-1
Chapter
11
Nexus
Meter
with
Internal
Network
Option
11.1:
Hardware
Overview
Q
The Nexus 1250/1252 Meter with the Internal Network Option has all the components of the
standard Nexus Meter PLUS the cabability of connecting to a multiple PC’s via Modbus/TCP over
Ethernet. Additional hardware is not required to establish a connection from a network to a Nexus
with Internal Network Option.
With the Internal Network Option, the Nexus 1250/1252 provides an Ethernet Gateway, allowing
access to other Modbus/RTU devices. Additional connections can include a daisy chain of standard
Nexus Meters. A daisy chain can include up to 31 meters. If more are desired, the installation of a
repeater allows additional meters. (See section 5.15 for repeater details.)
Figure 11.1: Nexus with Internal Network Option
10/100BaseT
or 10BaseT
RJ-45
RS-485
Network
Daisy Chain
MODBUS/RTU
MODBUS/TCP
over Ethernet