** This is a work in progress **
ESPhome acting as a Slave/Client/Server that can be polled by a master (e.g. a solar inverter) and delivers IREGs and HREGs which can be controlled arbitratily, I'm planning to use the values from my Shelly EM, however I've included a return value examples that allows you to set the values directly from HomeAssistant for anyone using that.
Connect it to an inverter, enable export control in the inverter menu, and monitor the requests. I've just moved house and my inverter is in a box, so id anyone wants to try this and give me some feedback I would be greatful.
esphome:
name: sdm230-test04
friendly_name: sdm230-test04
esp32:
board: esp32dev
framework:
type: arduino
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "xxxxxx"
ota:
password: "xxxxxx"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Sdm230-Test04 Fallback Hotspot"
password: "xxxxxx"
captive_portal:
external_components:
- source: github://That-Dude/esphome-fake-eastron-SDM230@master
refresh: 60s
components:
- modbus_server
uart:
- id: intmodbus
tx_pin: 17 # DI WHITE wire
rx_pin: 16 # RO BLUE wire
baud_rate: 9600
stop_bits: 1
data_bits: 8
parity: NONE
debug:
direction: BOTH
modbus_server:
- id: modbuserver
uart_id: intmodbus
address: 1 # slave address
# - I used this module which reqired pins below http://domoticx.com/wp-content/uploads/2018/01/RS485-module-shield.jpg
re_pin: GPIO19 # optional
de_pin: GPIO18 # optional
# holding_registers: # I don't think these are required for my purposes
# - start_address: 79 # starting register range
# default: 82 # default value for all those registers
# number: 2 # number of registers in the range
# on_read: | # called whenever a register in the range is read
# // 'address' contains the requested register address
# // 'value' contains the stored register value
# ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
# return value; // you can return the stored value or something else.
input_registers:
# I've implimented all of the regs found in this PDF:
# https://www.eastroneurope.com/images/uploads/products/protocol/SDM630_MODBUS_Protocol.pdf
# However, most inverters are likely to only request (or only use) certain values.
# E.g. My Growatt TLX3600 modbus master connected to mobus port B, requests first 14 regs
# initially (01 04 00 00 00 0E 71 CE)
- start_address: 00
default: 240 # Line to neutral Volts
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 01
default: 035 # Line to neutral Volts
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 06
default: 0 # current Amps
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 07
default: 2 # current Amps
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 12
default: 52 # Active Power Watts
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 13
default: 30 # Active Power Watts
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
# Request 1 ends here -----------------------------------------------------------------
- start_address: 18
default: 52 # Apparent power VoltAmps
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 19
default: 52 # Apparent power VoltAmps
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 24
default: 0 # Reactive power VAr
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 25
default: 0003 # Reactive power VAr
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 30
default: 0 # Power factor
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 31
default: 0 # Power factor
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 36
default: 0 # Phase angle Degree - this is a guess??? But I don't think it's used anyway
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 37
default: 0 # Phase angle Degree - this is a guess??? But I don't think it's used anyway
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 70
default: 50 # Frequency Hz
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 71
default: 0 # Frequency Hz
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 72
default: 0 # Import active energy kwh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 73
default: 0034 # Import active energy kwh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 74
default: 0 # Export active energy kwh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 75
default: 0 # Export active energy kwh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 76
default: 0 # Import reactive energy kvarh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 77
default: 034 # Import reactive energy kvarh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 78
default: 0 # Export reactive energy kvarh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 79
default: 0 # Export reactive energy kvarh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 84
default: 0 # Total system power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 85
default: 0 # Total system power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 86
default: 200 # Maximum total system power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 87
default: 0 # Maximum total system power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 88
default: 200 # Current system positive power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 89
default: 0 # Current system positive power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 90
default: 200 # Maximum system positive power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 91
default: 0 # Maximum system positive power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 92
default: 0 # Current system reverse power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 93
default: 0 # Current system reverse power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 94
default: 0 # Maximum system reverse power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 95
default: 0 # Maximum system reverse power demand W
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 258
default: 0 # Current demand Amps
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 259
default: 0 # Current demand Amps
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 264
default: 0 # Maximum Current demand Amps
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 265
default: 0 # Maximum Current demand Amps
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 342
default: 0 # Total active energy kwh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 343
default: 0 # Total active energy kwh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 344
default: 0 # Total reactive energy kvarh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 345
default: 0 # Total reactive energy kvarh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 384
default: 0 # Current resettable total active energy kwh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 385
default: 0 # Current resettable total active energy kwh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 386
default: 0 # Current resettable total reactive energy kvarh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
- start_address: 387
default: 0 # Current resettable total reactive energy kvarh
number: 1
on_read:
ESP_LOGI("ON_READ", "This is a lambda. address=%d, value=%d", address, value);
return value; // you can return the stored value or something else.
# example return based on the value of tspd number template below
# return id(tspd).state; // you can return the stored value or something else.
# Creates a number slider in Home Assistant that allows you to set the value of a register
number:
- platform: template
name: "Total system power demand W"
id: tspd
optimistic: true
min_value: 0 # this is the default on boot
max_value: 10000
step: 100
Growatt MIN 3600TL-X
