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+--- Thread: GCHV Modbus to LM5 (/showthread.php?tid=5110)
GCHV Modbus to LM5 - Samer - 24.11.2023
Guys, I have problem with GCHV modBus Gateway I have write the script however I can't write
can you please check it . ??
Code:
{
"manufacturer": "GCHV",
"description": "test",
"mapping": [
{
"name": "On Off",
"address": 40003,
"value_custom": {
"1": "Off",
"2": "On"
},
"bus_datatype": "float32",
"datatype": "uint8",
"type": "register",
"value_bitmask": "0XC000",
"writable": true,
"write_bitmask": true
},
{
"name": "Setting tempreture",
"address": 40003,
"bus_datatype": "temperature",
"datatype": "uint8",
"type": "register",
"value_bitmask": "0X001F",
"writable": true,
"write_bitmask": true
},
{
"name": "Fan speed",
"address": 40003,
"value_custom": {
"1": "low spped",
"2": "middle spped",
"4": "high speed",
"8": "Auto speed（low speed for GEN3+）"
},
"bus_datatype": "uint8",
"datatype": "uint8",
"type": "register",
"value_bitmask": "0X01E0",
"writable": true,
"write_bitmask": true
},
{
"name": "setting mode",
"address": 40003,
"value_custom": {
"1": "cooling mode",
"2": "dehumidification mode （cooling mode for GEN3+）",
"4": "Ventilation mode",
"8": "heating mode",
"16": "AUTO mode（cooling mode for GEN3+）",
"9": "floor heating",
"10": "intelligent floor heating"
},
"bus_datatype": "uint8",
"datatype": "uint16",
"type": "register",
"value_bitmask": "0X3E00",
"writable": true,
"write_bitmask": true
}
]
}RE: GCHV Modbus to LM5 - admin - 24.11.2023
To get real holding register address subtract 40001 from the documented address. Set bus_datatype for On/Off to uint8 instead of float32.
RE: GCHV Modbus to LM5 - Samer - 24.11.2023
Sorry, I didn't get it Admin,
what do you meant by "subtract 40001 from the documented address"
RE: GCHV Modbus to LM5 - admin - 24.11.2023
If documented starting address is 40001 then in reality it is 0. All other registers addresses = ADDRESS - 40001.
RE: GCHV Modbus to LM5 - Samer - 24.11.2023
Updated,
you can see the excel attached.
can you show me an example please ??
RE: GCHV Modbus to LM5 - admin - 24.11.2023
First indoor unit holding register addresses are 0 and 1, second - 2 and 3, and so on.
RE: GCHV Modbus to LM5 - Samer - 24.11.2023
Should this works ??
Code:
{
"manufacturer": "GCHV",
"description": "test",
"mapping": [
{
"name": "On Off",
"address": 0,
"value_custom": {
"1": "Off",
"2": "On"
},
"bus_datatype": "uint8",
"datatype": "uint8",
"type": "register",
"value_bitmask": "0XC000",
"writable": true,
"write_bitmask": true
},
{
"name": "Setting tempreture",
"address": 0,
"bus_datatype": "temperature",
"datatype": "uint8",
"type": "register",
"value_bitmask": "0X001F",
"writable": true,
"write_bitmask": true
},
{
"name": "Fan speed",
"address": 0,
"value_custom": {
"1": "low spped",
"2": "middle spped",
"4": "high speed",
"8": "Auto speed（low speed for GEN3+）"
},
"bus_datatype": "uint8",
"datatype": "uint8",
"type": "register",
"value_bitmask": "0X01E0",
"writable": true,
"write_bitmask": true
},
{
"name": "setting mode",
"address": 0,
"value_custom": {
"1": "cooling mode",
"2": "dehumidification mode （cooling mode for GEN3+）",
"4": "Ventilation mode",
"8": "heating mode",
"16": "AUTO mode（cooling mode for GEN3+）",
"9": "floor heating",
"10": "intelligent floor heating"
},
"bus_datatype": "uint8",
"datatype": "unit8",
"type": "register",
"value_bitmask": "0X3E00",
"writable": true,
"write_bitmask": true
}
]
}RE: GCHV Modbus to LM5 - admin - 24.11.2023
Change all datatype entries to uint16, keep bus_datatype unchanged.