The problem of converting floating-point numbers to 4-byte format (in CDAB order) under StreamDevice

[高振华 via Tech-talk <tech-talk at aps.anl.gov>]

Hi all,

I am conducting Modbus RTU communication with a device and need to convert a 32-bit floating-point number into 4 bytes of hexadecimal data and then send it to the device.

For example: 3.15 converted to 4 bytes is 40 49 99 9A (in hexadecimal, big-endian order, ABCD order).

Using StreamDevice, how should I convert to the CDAB order? (For example, the CDAB order corresponding to 3.15 is 99 9A 40 49).

Does StreamDevice have a corresponding conversion symbol?

Best regards，

Gao Zhenhua

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BSRF

Email:gaozh at ihep.ac.cn