Multi-tech-systems 7500 Manual do Utilizador Página 279

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ION 7500 / ION 7600 User’s Guide Using WebMeter in a Modbus Network
WebMeter Internal Web Server Feature Technical Note Page 279
Using WebMeter in a Modbus Network
Below is a typical application of the WebMeter feature.
Hardware
In this example, the ION 7500 meter is WebMeter enabled, and is acting as Modbus
master to the ION 6200 meter (acting as Modbus slave). The IP Address of the ION
7500 meter is 192.168.1.5 and it is also connected to the workstation PC via the
Ethernet.
The ION 6200 meter’s Unit ID is 113 and its location is the office. It is serially
connected to the ION 7500 meter using RS-485 cable.
Framework
The framework for the ION 7500 meter shows how the different modules are
configured to produce a custom web page for the ION 6200 meter.
Ethernet
RS-485
(Modbus network)
Unit ID: 113
Location: Office
IP Address: 192.168.1.5
Modbus Master Device
Modbus Slave Device
Factory Module
Device Namespace = Miami.CompanyX
Device Name = MainMeter
Web Page Module
Modbus Import
Module
Gatewayed Device Namespace = Default
Gatewayed Device Name = Office
Page Location = Office
Slave Addr = 113
Value 1
Value 2
Source 3
Source 2
Source 1
Value 3
XML web page
Http://192.168.1.5/Office.xml
<Device label=”Office”
xlink:type=“locator” xlink:href=
”http//192.168.1.5/Office.xml”
deviceType=”7350”...>
<Data updateTime=
”07/26/02 8:31:36 AM”>
<D...value=”Value 1”/>
<D...value=”Value 2”/>
<D...value=”Value 3”/>
</Data>
</Device>
Http://192.168.1.5/Office.html
HTML web page
Value 1
Value 2
Value 3
Label
Label
Label
Office
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