LG PI-485 protocol
Supported device types and versions
Communication line configuration
Communication station configuration
I/O tag configuration
Literature
Document revisions
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Possible I/O tag types: Ai, Ao, Ci, Co, Di, Dout, Qi
The address of the I/O tag is textual. The following table shows a list of existing addresses:
| Address | I/O tag type | Description |
|---|---|---|
| LOCK_REMOTE | Di, Dout | Get/set the remote controller functionality: Lock (1) / Unlock (0). |
| OPERATE_OUTPUT | Di, Dout | Get/set the device functionality: the device is stopped (0) / working (1). |
| OPERATE_DHW | Di, Dout | Get/set the domestic hot water heating in the built-in boiler: disabled (0) / enabled (1). |
| OPERATE_MODE | Ai, Ao | Get/set the mode of operation: 0=cooling, 1=dehumidification, 2=ventilation, 3=auto, 4=heating. |
| TEMP_OUTPUT_SP | Ai, Ao | Get/set the desired outlet water temperature. |
| TEMP_DHW_SP | Ai, Ao | Get/set the desired temperature of the domestic water in the built-in boiler. |
| TEMP_WATER_IN | Ai | Current inlet water temperature. |
| TEMP_WATER_OUT | Ai | Current outlet water temperature. |
| TEMP_ROOM | Ai | Current room temperature (external sensor connectable to the indoor heat pump unit). |
| TEMP_TANK | Ai | Current temperature of the domestic water in the built-in boiler. |
| TEMP_SOLAR | Ai | Current temperature of an optional external solar system (if connected). |
| CONNECTED_IDU | Di | The indoor unit is connected (1) or disconnected (0). |
| TGT_TEMP_SEL | Di | Current setpoint is the temperature of air TEMP_ROOM (0) or water TEMP_OUTPUT_SP (1). |
Note: Temperatures are integer numbers (°C).
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