How to display Modbus data type double - related endian

[hoonjaeyim]

Could you let me know how to display data type double?

To check value, I used modbus poll. The kWH reading value was 55.235

Display format was Double AB CD EF GH (endian) from the modbus poll.

But when I see from WinccOA. the reading value was 2.0257438078383e+37

Please see attachments

I think to get same value from Meters, we need word swapped.

Please let me know how to do

[leoknipp]

For the Modbus driver the config entry littleEndianRegister = 0/1 (default 1) is available.
I'm not sure if the entry helps to solve the problem but you can give it a try.

Best Regards
Leopold Knipp
Senior Support Specialist