Download Nexus Communicator 2

RS-232: Insert RS-232 cable from a PC into Port 1 and set the Selector Switch to RS-232.
This connection is necessary to set the initial software configuration.
For details on Nexus 1250/1252 connections and wiring, see Nexus 1250/1252 User’s Manual.
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Nexus 1262 and 1272: RJ-45 Connection
The 10/100BaseT Option conforms to the IEEE 802.3 specification using unshielded twisted
pair (UTP) wiring. This allows the use of inexpensive RJ-45 connectors and CAT5 or better
cabling. The RJ-45 connector is supplied with the meter.
Using this LAN connection allows multiple PCs to be connected concurrently. The RJ-45 line is
inserted into the RJ-45 Port (or Jack) on the Port 3 cable coming from the back of the Nexus
1262 and 1272 with 10/100BaseT Option.
The connection using RJ-45 into the Nexus 1262 and 1272 connects the Meter to a network
using Modbus TCP protocol over the Ethernet. You can access the Meter with a SCADA
system, MV90 and PCs all at the same time.
RS-232: Use the Optical Port on the face of the meter to make the RS-232 connection. The
magnetic coupler snaps into place; the other end of the cable connects to your PC.
This connection is necessary to set the initial software configuration.
For additional details on Nexus 1262 and 1272 connections and wiring, refer to the
Nexus 1262/1272 User’s Manual.
6.4: Software Connection
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Nexus 1250/1252, 1262 and 1272:
Connect a Nexus to a computer using Port 1 (1250/1252) or Port 3 (1262, 1272) to configure the
network parameters and add a network connection. The Nexus must be configured to speak Modbus
TCP. (Modbus TCP is the common protocol used for Modbus communication over a network.)
NOTE: The Gateway operates as a Modbus RTU Master with programmable Baud Rate up to 115200.
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Direct Connection:
1.
Click the Connect button on the Tool Bar or select
Connect, Quick Connect.
Click the Network radio button. The Connect screen will
change from the Serial Port version to this example.
2.
Enter settings for Network Connection: (see your
Network Administrator for correct settings!)
In the Device Address field, enter 1.
In the Host field, enter an IP Address or a Registered
Name (see your Network Administrator).
In the Network Port and Protocol fields, the example
settings are fixed.
e Electro Industries/GaugeTech
Doc # E107-7-07 V1.24
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