I need to read data format RTU modbus INT32-M10K

[Setsero]

I have communication via Modbus RTU, formatted (int 4 bytes) and the data they get is not real because the team format INT32-M10K, as I get the data from that format.

excuse the translation of the English

[Mikhail]

The approach is
1. Receive data in UInt16 (4 Bytes)
2. Create a formula in the configuration database (SCADA-Administrator, Formulas table) which decodes the data.
3. Use the formula for your input channels in the Formula field.

Do you have an algorithm how to convert INT32-M10K to normal integers or floats?

[Setsero]

thanks for your quick response.
the algorithm for obtaining data INT32-M10K
is:
Example (Signed):
Value ‐12345678 is passed in signed 32‐bit Modulus‐10000 format. Both high and
low are signed.
 Registerhigh: ‐1234 = FB2E Hex
 Registerlow: ‐5678 = E9D2 Hex
 Value = ‐1234 x 10000 + ‐5678 = ‐12345678
Modbus register map

Label—–Address—-Number of register—-Format
kWh del—-40089————2————-INT32-M10K

I divided into two registers so

Label———-Address—-Number of register——–Format
kWh del high—-40089————1————–short (2 bytes)
kWh del low—–40090————1————–short (2 bytes)

SCADA-Administrator, Formulas table

kWh del high Cnl*10000
kWh del Val(n)+Val()

(n) is the number of impout channel kWh del low

• This reply was modified 7 years, 6 months ago by Setsero.

[Mikhail]

Does it work for the current time?

[Author]

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