Baldor Modbus Plus Bedienungsanleitung PDF herunterladen (Seite 15)

AN00174-001 Modbus TCP Fieldbus Option for MotiFlex e100.doc

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Before we click on a button to initiate the write we need to load some data into the relevant

registers on the MiniHMI data grid…

Our WorkBench Spy Window now looked like this...

Next we changed the data format to LONG (32-bit integer) and the Address/Quantity to 0 and 2

respectively…

Now when we write the Process Data from the client the WorkBench Spy window displays the

correct 32-bit integer values (note that the MiniHMI software automatically displays only registers

0 and 2)…

Using Modbus/TCP it is also possible to write floating point data. Switch to WorkBench v5.5 and

edit the NetData spy entries for Channels 1 and 2 so their data type becomes Float.

Now change the Data Format in the MiniHMI application to FLOAT (leaving the Address and

Quantity set to 0 and 2 respectively). Enter some floating point data into the MiniHMI data grid

(we used 987.65 and -987.65) and click on the Synch Write button. The WorkBench now displays

the correct floating point values in NetData Channels 1 and 2.

NetData Channels 1 and 2 are the Recieve PDOs

so use the WorkBench Spy Window now shows the

16 bit integer data we sent from the client.

We set register 0 to 123 and register 2 to 456 and

then clicked on the ‘Synch Write’ button

We also loaded some data outside the 16 bit range

to test the transmission of 32 bit values (we used

123456789 and -123456789)

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Baldor Modbus Plus Bedienungsanleitung Seite 15