Table of Contents
Advertisement
Installation
February 2019
3.6
Verify operations
Operation is verified through the web interface by opening a web browser from any PC on
the host system network and entering the Gateway IP address or DHCP host name in the
address bar. If the Gateway has been connected and configured properly, the security alert
will be displayed followed by the log in screen. This will need to be done for both networks.
Figure 3-10: Gateway Log In Screen
The Gateway is now ready to be integrated into the host system. Make sure the field
devices to be used with each network have the Network ID and Join Key that is on the
Gateway (found on the Network Setting page). Once the field devices are powered, they
will appear on the wireless network and communications can be verified under the Explore
tab using the web interface. The time needed for the network to form will depend on the
number of devices.
3.7
RS-485
The Gateway can be ordered with an optional RS-485 (serial) connection (reference).
Modbus terminals are labeled A and B on the wiring diagram. This connection is used to
communicate Modbus RTU on an RS-485 data bus, and it is available for both networks.
Use 18 AWG single twisted shielded pair wiring to connect the Gateway to the RS-485 data
bus. The total bus length should not exceed 4000 ft. (1220 m). Connect the Tx - (negative,
receive) wire to terminal A and the Rx + (positive, transmit) wire to terminal B. The wiring
shield should be trimmed close and insulated from touching the Gateway enclosure or
other terminations.
If the existing data bus uses a 4-wire Full Duplex configuration, see Figure 3-11 to convert
to a 2-wire Half Duplex configuration.
28
Reference Manual
00809-0500-4410
Emerson.com/Rosemount
Advertisement
Table of Contents
