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Application Note 105/905U-G-ET1 Modbus TCP

Issue 1.2 – Apr 2006

©ELPRO Technologies Pty Ltd

Page 9 of 12

app_905U-G_ModbusTCP_1.2.doc

You will

see each of

the Tags in

the OPC

Server

Correspond

s to the

values entered into the Debug I/O screen

Melrose Analog 1 has a scaled value of 11 for 20000

Melrose Analog 2 has a scaled value of 26 for 25000

River Room Analog 1 has a scaled value of 42 for 30000

River Room Analog 2 has a scaled value of 57 for 35000.

We can now check that we can write a value into the OPC Server and read a value in the

Debug I/O reg screen.

Right click the Output Tag in this case it is Channel1.Elpro105/905G.Gatway.CityAnalog and

enter a scaled value you wish to change.

You should now be able to go back to the Debug I/O register screen and see that the register

has changed. In this case the scaled value was set for 100 % which would change the register

value to 49152 (20mA)

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Elpro Technologies 105U-G Spezifikationen Seite 35