Comments (14)
You cannot access those (bus version 22 registers) with a bus version 9. You will have to get an update from Nilan for your device.
The settings are available in HMI, but they are not accessible via modbus with bus version 9.
I will go through the correct registers for your device, probably today.
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I will try in the new year.
Did you try this?
Did not try yet, I wanted to confirm first that the device actually has the 4-way valve physically present, which is necessary for the cooling to work in the first place.
And it actually has it!
I will resume the modbus side experiment once the heating period is over, I don't want to risk bricking the controller in the middle of winter.
But seems very promising, never the less.
from nilan.
Hi, I will add the device ASAP.
from nilan.
Managed to get it working by myself with trivial additions to device_map (ie. adding the entry for device 20: "VP 18ek" to CTS602_DEVICE_TYPES and the appropriate entries to CTS602_ENTITY_MAP).
Even though the machine has some of the same entities as device 21 with bus version 22 accessible through HMI (central heating curves for example), the integration returns only unknown values. Possible address mismatches between bus versions? Will investigate further later, right now interested in actually using the integration.
Thank you for the great work!
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Could you take a picture of your type plate? I cannot find the correct manual. Thanks.
from nilan.
from nilan.
That is funny. It might be that the cooling function is disabled only by software. I wonder what would happen if you tried to write 21 to holding register 1000. Would you get the cooling function? I might be though, that the writing is disabled to this register.
from nilan.
I will try in the new year.
from nilan.
I guess the only register that is different is the cooling setpoint, though the manual does not mention any differences.
from nilan.
Right now, the mode can be set to cooling on the front page of the HMI, but all it does is stop the compressor. There is no cooling menu entry visible in my HMI to set the cooling setpoint or boosted fan etc.
from nilan.
Right now, the mode can be set to cooling on the front page of the HMI, but all it does is stop the compressor. There is no cooling menu entry visible in my HMI to set the cooling setpoint or boosted fan etc.
Ok, good to know, will remove the cooling ventilation step also.
from nilan.
I will try in the new year.
Did you try this?
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@veista
I finally had time to try it out, and I can confirm that it works!
Wrote 21 to holding register 1000, and immediately all VP18cek features appeared.
Everything is fully functional in HMI and through the integration, and confirmed that the cooling feature working correctly.
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That is awesome! Wonder what was the pricing difference originally. I don't think they sell the models without cooling anymore.
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Related Issues (20)
- If connection fails during setup, integration must be reloaded
- Add support for VGU180 EK HOT 4
- Add support for Nilan CompactS HOT 3
- Fan mode missing from automation actions HOT 2
- Nilan Compact P Air 9 support
- CTS700 on a Compact P HOT 2
- Latest update created orphaned device HOT 6
- Can't initialize integration after 2024.4 HOT 8
- Could not read errors - poss since 1.2.14 HOT 11
- Elfin EW11 HOT 2
- Modbus Error: [Connection] Not connected[AsyncModbusTcpClient 192.168.68.122:502] HOT 1
- 1.2.15 causes MODBUS communication to fail HOT 2
- Could not exclusively lock port /dev/ttyUSB0 HOT 1
- Sensor name and behaving HOT 1
- Modbus problem
- Failure to read various numbers of values HOT 4
- Issues with 2023.9.0 and 2023.9.1 Core update HOT 1
- Feature request - NILAN Gateway integration directly? HOT 1
- Set Fan Level
- Central heating control HOT 3
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