Swapped registers in the Com'X200

[LaurentCoene]

In many instances, when you create a custom device type, you have to deal with swapped registers.

In order to deal with this, in the EGX300, you used to invert the register start and end address.

Here is an example of how you would have done this in the EGX300:

As you can see, for our real energy, the start register is 3001 and the last register is 3000. If you were working on a 64bits value, it would be the same: 3003, 3002, 3001, 3000.

In the Com'X200, there's a drop-down that will define whether you are dealing with swapped registers or not: the Endianness drop-down!

So the same solution would look like this:

[sesa113942_brid]

What if you have a custom device which use swapped bytes in the registers?

I have an example of a meter with a 32 bit integer register value:

First reg. has the value:           BF F1 (hex)

Second reg. has the value:      13 00 (hex)

The correct reading of the meter value is: 00 13 F1 BF (hex) = 1307071 (decimal).

In some other Modbus SW you can choose swapped bytes, but is there a way to read the correct value in the Com'X200?