Hi,
I have made a setup according to the following topic:
The modbus connection I want to obtain is with the following device:
Here I want to read the data at address 3x251, but I get no data at all. Can someone check if my code is correct and especially the addressing?
This is my code:
esphome:
name: esp-modbus
friendly_name: esp-modbus
esp8266:
board: d1_mini
# Enable logging
logger:
baud_rate: 0
level: VERBOSE
# Enable Home Assistant API
api:
encryption:
key: ""
ota:
password: ""
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
ap:
ssid: ""
password: ""
captive_portal:
uart:
id: mod_bus
tx_pin: GPIO1
rx_pin: GPIO3
baud_rate: 19200
parity: Odd
stop_bits: 1
modbus:
flow_control_pin: 5
id: modbus1
uart_id: mod_bus
send_wait_time: 500ms
modbus_controller:
- id: epever
address: 53
update_interval: 10s
modbus_id: modbus1
setup_priority: -10
sensor:
- platform: modbus_controller
modbus_controller_id: epever
name: "Ultralink"
id: ultralink
register_type: holding
address: 251
unit_of_measurement: "%"
value_type: U_WORD
And this is the response I get:
[08:19:27][C][modbus_controller:275]: ModbusController:
[08:19:27][C][modbus_controller:276]: Address: 0x35
[08:19:27][C][modbus_controller:278]: sensormap
[08:19:27][C][modbus_controller:280]: Sensor type=3 start=0xFB offset=0x0 count=1 size=2
[08:19:27][C][modbus_controller:284]: ranges
[08:19:27][C][modbus_controller:286]: Range type=3 start=0xFB count=1 skip_updates=0
[08:19:27][V][modbus_controller:035]: Sending next modbus command to device 53 register 0xFB count 1
[08:19:27][V][modbus:199]: Modbus write: 35.03.00.FB.00.01.F1.8F (8)
[08:19:27][V][modbus_controller:486]: Command sent 3 0xFB 1
[08:19:27][V][modbus_controller:035]: Sending next modbus command to device 53 register 0xFB count 1
[08:19:27][V][modbus:199]: Modbus write: 35.03.00.FB.00.01.F1.8F (8)
[08:19:27][V][modbus_controller:486]: Command sent 3 0xFB 1
[08:19:28][V][modbus_controller:035]: Sending next modbus command to device 53 register 0xFB count 1
[08:19:28][V][modbus:199]: Modbus write: 35.03.00.FB.00.01.F1.8F (8)
[08:19:28][V][modbus_controller:486]: Command sent 3 0xFB 1
[08:19:28][V][modbus_controller:035]: Sending next modbus command to device 53 register 0xFB count 1
[08:19:28][V][modbus:199]: Modbus write: 35.03.00.FB.00.01.F1.8F (8)
[08:19:28][V][modbus_controller:486]: Command sent 3 0xFB 1
[08:19:29][D][modbus_controller:029]: Modbus command to device=53 register=0xFB countdown=0 no response received - removed from send queue