Fan speed control problem

[Long]

Hi everyone!
I have a modbus problem, need someone help. according to the modbus documentation the register for the fan control flag should be set to 6, but it's not clear to me how to set the flag for the register. Thank you very much!
{ "name": "1-00 Swing-Read", "bus_datatype": "uint16", "type": "inputregister", "address": 2000, "writable": 0, "datatype": "uint16", "value_bitmask": 0x700, "value_custom": {"0": "P0", "1": "P1", "2": "P2", "3": "P3", "4": "P4", "6": "Swing stop", "7": "Swing on" } },
{ "name": "1-00 Swing-Write", "bus_datatype": "uint16", "type": "register", "address": 2000, "write_bitmask": true, "writable": true, "datatype": "uint16", "value_bitmask": 0x700, "value_custom": {"0": "P0", "1": "P1", "2": "P2", "3": "P3", "4": "P4", "6": "Swing stop", "7": "Swing on" } },
{ "name": "1-00 Fan Speed-Read", "bus_datatype": "uint16", "type": "inputregister", "address": 2000, "writable": 0, "datatype": "uint16", "value_bitmask": 0x7000, "value_custom": {"1": "Low", "3": "Medium", "5": "High" } },
{ "name": "1-00 Fan Speed-Write", "bus_datatype": "uint16", "type": "register", "address": 2000, "write_bitmask": true, "writable": true, "datatype": "uint16", "value_bitmask": 0x7000, "value_custom": {"1": "Low", "3": "Medium", "5": "High" } },

[admin]

Check point (2). You need to write 6 to bits 4..7 to enable fan control.

[Long]

Check point (2). You need to write 6 to bits 4..7 to enable fan control.

Thanks for answering! I understand what you mean but I don't have much knowledge about modbus, Can you help me to edit the profile. Thank you!

[admin]

Update the profile, map an object and write 6 there.

Code:

{
"name": "1-00 Fan Control Enable",
"type": "register",
"address": 2000,
"datatype": "uint16",
"bus_datatype": "uint8",
"value_bitmask": 0x00F0,
"writable": true,
"write_bitmask": true
}

[Long]

Update the profile, map an object and write 6 there.

Code:

{
"name": "1-00 Fan Control Enable",
"type": "register",
"address": 2000,
"datatype": "uint16",
"bus_datatype": "uint8",
"value_bitmask": 0x00F0,
"writable": true,
"write_bitmask": true
}

Thank you very much admin!