Hello,
I have already read relatively far into HA and Modbus. In the meantime, I read out data via the Modbus integration with Home Assistant and display various values.
My YAML looks like this:
modbus:
- name: hub1
type: rtuovertcp
host: 192.168.178.88
port: 502
sensors:
- unique_id: 27acef9c-1f13-11ee-be56-0242ac120002
name: EActual
device_class: energy
unit_of_measurement: "W"
state_class: measurement
slave: 247
address: 781
scan_interval: 7
input_type: holding
data_type: uint16
- unique_id: c22bd43a-1f12-11ee-be56-0242ac120002
name: ETotal
device_class: energy
unit_of_measurement: "Wh"
state_class: measurement
slave: 247
address: 546
scan_interval: 7
input_type: holding
data_type: uint32
- name: EDay
device_class: energy
unit_of_measurement: "Wh"
state_class: measurement
slave: 247
address: 566
scan_interval: 7
input_type: holding
data_type: uint16
- name: E-Limit
device_class: energy
unit_of_measurement: "%"
state_class: measurement
slave: 247
address: 292
scan_interval: 7
input_type: holding
data_type: uint16
Here is an excerpt from the PDF with the overview of the available registers:
Address | Name of Data | Content | Unit | Data Format | (R.W) Property | Range of Data | Remarks
0222 | ETotal | | 0.1KW | INT32U | R | | Total Energy Yield
030D | Pac L | | 1 W | INT16U | R | | low Byte of Feeding power
0236 | EDay | | 0.1KW | INT16U | R | | Energy yield in current day
0124 | Power limit setting with % | | 1 % | INT16U | R/W | 0-100 |
The address in the Modbus register overview is hex, in the YAML it is decimal under address.
The values are neatly displayed in the Home Assistant, including of course the power limit with e.g. 70%. Now I would like to not only read (R) but also write (W) these registers with a Range of Data value from 1-100.
I have really struggled with the whole Modbus, RS485 TCP LAN adapter, etc., but from here on I can’t get through. How can I create a slider in Home Assistant that I can control from 1-100? The value to which the slider is moved should then be written to the register.
I would be very happy if someone here knows more about the Modbus topic and can help me here.