LM und Daikin RTD-W - Modbus

[admin]

for signed registers use int16 type, keep in mind that you have to create device again from scratch after uploading new profile

[Daniel]

I think datatype is int16 for this register, Each time you change something in profile you must delete the device, delete the old profile, then add new profile and add device and map objects.

[mkoermer]

I have now changed the profile, deleted the old one, added the device with the new profile and now under Objects on the GA I have e.g. B. 2150 sent = should stand for 21.50 degrees, when the holding register is queried, but 32767 is still there. No change.

However, no more error messages.


Here is a picture for the changed values

[Daniel]

Pate your profile again

[mkoermer]

look here

Code:

{
  "product_code": "RT",
  "manufacturer": "Realtime",
  "name": "RTD-W Control",
  "product_range": "Realtime Modbus",
  "description": "Realtime Modbus RT ",
  "mapping": [
    {
      "name": "Sollwert Wasservorlauf Heizen",
      "address": 1,
      "bus_datatype": 7,
      "datatype": "int16",
      "type": "register",
      "units": "Grad",
      "value_multiplier": "0.01"
    },
    {
      "name": "Sollwert Wasservorlauf Kuehlen",
      "address": 2,
      "bus_datatype": 7,
      "datatype": "int16",
      "type": "register",
      "units": "Grad",
      "value_multiplier": "0.01"
    },
    {
      "name": "Sensoreingang Heizen ein",
      "address": 10001,
      "bus_datatype": 7,
      "datatype": "int16",
      "type": "register",
      "units": "ein/aus"
     }
  ]
}

The "datatype" agrees with 7 ?? just took it over without knowing exactly whether it would fit?

I also included the last part "Sensor input" as an example. This is about the input register I10001.

[Daniel]

For the temp objects use bus_datatype 9 as this is floating value

[mkoermer]

I changed the Datatype to 9 for holding registers 1 and 2, but what I transfer to Modbus with KNX is not changed when I run the RTU read test - it remains at 32767.

Code:

{
  "product_code": "RT",
  "manufacturer": "Realtime",
  "name": "RTD-W Control",
  "product_range": "Realtime Modbus",
  "description": "Realtime Modbus RT ",
  "mapping": [
    {
      "name": "Sollwert Wasservorlauf Heizen",
      "address": 1,
      "bus_datatype": 9,
      "datatype": "int16",
      "type": "register",
      "units": "Grad",
      "value_multiplier": "0.01"
    },
    {
      "name": "Sollwert Wasservorlauf Kuehlen",
      "address": 2,
      "bus_datatype": 9,
      "datatype": "int16",
      "type": "register",
      "units": "Grad",
      "value_multiplier": "0.01"
    },
    {
      "name": "Sensoreingang Heizen ein",
      "address": 10001,
      "bus_datatype": 7,
      "datatype": "int16",
      "type": "register",
      "units": "ein/aus"
     }
  ]
}

I send z. B. 2150 and 32767 remains.

Any idea why that is? or am I wrong here?

[Daniel]

you are not transferring anything from KNX yet as write is not enabled
To write add "writable": 1

---

For the sensor it should automatically convert to boolean so you can change bus_datatype to 1. Delete the units and if you want to change it to something else use custom value in objects. Otherwise you can add enumeration.

[mkoermer]

My profile now looks like this - should it be describable, right? So far nothing has changed!
sri, but i am more than grateful for your help!

Enclosed the profile.

Code:

{
  "product_code": "RT",
  "manufacturer": "Realtime",
  "name": "RTD-W Control",
  "product_range": "Realtime Modbus",
  "description": "Realtime Modbus RT ",
  "mapping": [
    {
      "name": "Sollwert Wasservorlauf Heizen",
      "address": 1,
      "bus_datatype": 9,
      "datatype": "uint16",
      "type": "register",
      "value_multiplier": "0.01",
      "writable": 1
    },
    {
      "name": "Sollwert Wasservorlauf Kuehlen",
      "address": 2,
      "bus_datatype": 9,
      "datatype": "uint16",
      "type": "register",
      "value_multiplier": "0.01",
      "writable": 1
    },
    {
      "name": "Sensoreingang Heizen ein",
      "address": 10001,
      "bus_datatype": 1,
      "datatype": "int16",
      "type": "register",
      "writable": 1
     }
  ]
}

[Daniel]

The sensor is type inputregister and you can't write to it.

[mkoermer]

The sensor is type  inputregister and you can't write to it.

ok deleted ;-) but why don't the values in holding registers 1 and 2 change? As soon as I insert the device and link it with GAs, I get the values 327.56

If I enter 250 or the like, it remains at 327.56.

According to the instructions, the holding register can be written to and read - so it should be possible to specify a setpoint, right?

[Daniel]

Most likely this is what the slave has in the register. I would check your device if it doesn't have some errors as this is maximum value.

[mkoermer]

would it also be conceivable because I only have the Modbus gateway, but no air conditioning machine behind it, so that the values are not changed because of it?

(because there is no control behind it?)

[Daniel]

Most likely yes.

[mkoermer]

ok, then we have circled the current problem ;-)
Then we'll try it out for life soon ...

thank you for your help!

Best regards
Michael