can't import json profile

[AlexLV]

Hi, 

I just started creation new profile for Ouman H23 device. I tried to import it but I see invalid profile. What is wrong, or where I can see rules for creation?

  OumanH23.json (Size: 529 bytes / Downloads: 4)

Alex

[AlexLV]

Hi,
I used profile generator. Now it possible to import. What is correct datatype and bus type for first two registers (from attached file) from description? Temperatures I see not 10.0 but 100.

My variant:

{
  "manufacturer": "Ouman",
  "description": "H23 V1",
  "mapping": [
    {
      "name": "Outdoor temp.",
      "address": 201,
      "bus_datatype": "temperature",
      "datatype": "uint16",
      "type": "register",
      "units": "\u00B0C"
    },
    {
      "name": "H1 supply water temp.",
      "address": 203,
      "bus_datatype": "temperature",
      "datatype": "uint16",
      "type": "register",
      "units": "\u00B0C"
    }
  ]
}

  H23_ModbusInterface_v2.0.2_EN.pdf (Size: 122.36 KB / Downloads: 9)

[admin]

S32 is a signed 32-bit integer so datatype must be set to int32. Add "value_multiplier": 0.1 to divide the resulting value by 10.

[AlexLV]

Hi,

not working, temp. read the same 670760.96 °C

{
"manufacturer": "Ouman",
"description": "H23 V1",
"mapping": [
{
"name": "Outdoor temp.",
"address": 201,
"bus_datatype": "temperature",
"datatype": "int32",
"type": "register",
"units": "\u00B0C",
"value_multiplier": "0.1"
},
{
"name": "H1 supply water temp.",
"address": 203,
"bus_datatype": "temperature",
"datatype": "int32",
"type": "register",
"units": "\u00B0C",
"value_multiplier": "0.1"
}
]
}

[admin]

You might also need to set a different read_swap value (probably "n"). Use Read test to find the correct settings then implement them a profile.

[AlexLV]

Test working OK.

Read swap is CDAB by default. Is it = n ?

Temp readed 158 so should be divided by 10

[admin]

Default swap is "w" (word, CDAB). You need to add "read_swap": "n" to the profile. "value_multiplier": 0.1 will handle the conversion (divide by 10).

[AlexLV]

But this is without datatype set.

If I set int32 I receive 1035488 with CDAB. When I set to none all is Ok. So now all is clear with this, thank you!

[AlexLV]

Hi,

another little problem is found now. Positive temperature reading is OK, but when temperature is negative - I see reading 6548.48. What can be corrected in my case:

"mapping": [
{
"name": "Outdoor temp.",
"address": 201,
"bus_datatype": "temperature",
"datatype": "int32",
"type": "register",
"units": "\u00B0C",
"value_multiplier": "0.1"
},

Alex

[admin]

What values do you get when doing read test with these settings?

Function: holding register
Address: 201
Data type: -
Read length: 2

Also perform the same read test with address set to 200.

[rw_echo]

Admin, Can I still use the "read_swap": "n" instruction to read the same object that is not a continuous data address? If not, what should I do?

eg:
Power_ H register: 0x60

Power_ L register: 0x70

[Daniel]

Nothing has changed in the documentation.
https://openrb.com/docs/modbus.htm
Use read test to find out correct configuration.

[admin]

You will need a script if the value is split across several registers that are not consecutive. Register values can be read via profile but the final value conversion will be done by a script.