How ironic, I just spent the morning messing with Kepware. I just installed KepserverEX 5.6, a recent download from their site.
With Kepware you have to be real careful in the choice of data formats:
Once you have the tag configured, you can edit it,
right click the tag, select properties:
Then you can select a data format from the drop down list in Data Type
If there's a comprehensive listing of all data types, I didn't find it in the Help, but I did find a partial listing for the driver I was using, and I imagine that their types are globabl throughout Kepserver:
I spent a couple hours figuring out the floating point format.
The Device's properties defines what the byte order format is for that slave device (Little Endian vs Big Endian, Intel vs Motorola, etc) I believe the standard Modbus format is this:
To navigate to the settings tab in device properties, right click the device, and select properties:
navigate to device properties, settings tab[/IMG]
Select the settings tab.
Here's selections for what my slave calls Big Endian:
Your mileage may vary with selections for byte order formats.