ControlByWeb WebRelay-Quad X-WR-4R1-5 User Manual page 21

Revision 2.2b
6. Modbus Port:
7. Speed:
Xytronix Research & Design, Inc.
An example screenshot of a gateway router configuration is given below. This setup
allows seven ControlByWeb
gateway router. Note that this screenshot is simply an example of a typical router setup
page. Routers will vary.
In the example, the seven ControlByWeb
10.10.10.41 to 10.10.10.47. The first device labeled WebRelay-Quad 1 has an IP address
of 10.10.10.41 and is assigned port 8001. Note that in the WebRelay-Quad
(under Network settings tab), TCP Port 8001 must be specified for this device. The
second device, labeled WebRelay-Quad 2 has an IP address of 10.10.10.42 and is assigned
port 8002. This WebRelay-Quad
settings page. This pattern continues through 10.10.10.77 which is assigned the port 8007.
To access the ControlByWeb
plus the port number of the desired device.
This specifies the port used for Modbus/TCP communications with WebRelay-Quad
By default this is set to port 502 which is the standard Modbus port. For users not familiar
with Modbus, Modbus is a messaging structure protocol used in industrial manufacturing
control and automation. It is an open protocol and offers interoperability with software
and devices from other manufacturers. If Modbus is not used, this setting can be ignored.
Modbus communications are disabled whenever the control password is enabled.
This option sets the data rate of the Ethernet port. Both 10Mbps and 100Mbps can be
selected. The 100Mbps option offers faster communications but the amount of data to and
from WebRelay-Quad is so small that users will not likely notice much of a difference.
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When WebRelay-Quad is set to 10Mbps, it draws less power and runs a little cooler
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which translate into a longer product life. IT IS RECOMMENDED THAT THIS
SETTING BE LEFT AT 10MBPS UNLESS THE USER HAS A SPECIFIC REASON TO
USE 100MBPS.
products to be accessed on a private network behind a
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products are assigned IP addresses of
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must have its TCP Port set to 8002 in it's network
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units from the Internet, enter the IP address of the gateway
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WebRelay-Quad Users Manual
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setup page
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.
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page 20