could one of these objects connected to my two sd230 modbuss work?
Hey Bard,
I’m struggling long time to read reliable data from the SDM120.
Ive tried it with node-red solution as well as modbus-implementation of ha.
But not reliable.
I would try your node-red implementation but importing ends wit an Unexpected token “ in JSON at position 2
Can you help me, please.
Regards Uwe
Hi @UBS-P sorry for delay, I’ll prepare a quick procedure for insert the code manually.
First of all:
-
do you have already last available node-red addon in your system?
-
have installed the library: node-red-contrib-modbus?
Anyway you can try to load this code:
https://flows.nodered.org/flow/75a4715fb6a3595057343a92abc493e4
this guy prepared also a nice video explaining the configuration of the sdm120 and then the nodered part
when i developed the code I started from this code and then I modified a little the code in order to reduce the number of reading and then demux the data read in one block of code
let me know
Hey Bard,
thanks for supporting.
The code works fine!
Especially the -formerly annoying- error message in lovelace is gone!
Regards
Uwe
good to hear that! if you want to check my code:
- I’m reading 72 register
- I’ll demux: power,frequency,current,voltage
*I will send data to HA using mqtt only if the value is changed - every 30min I’ll force data send anyway trough mqtt
[
{
"id": "c233fe31.d746b",
"type": "inject",
"z": "c5d09c5.47fefe",
"name": "",
"topic": "",
"payload": "",
"payloadType": "date",
"repeat": "5",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"x": 150,
"y": 100,
"wires": [
[
"78678abc.6260ac"
]
]
},
{
"id": "78678abc.6260ac",
"type": "function",
"z": "c5d09c5.47fefe",
"name": "sdm120 config",
"func": "msg.payload = { value: msg.payload, 'fc': 4, 'unitid': 1, 'address': 0 , 'quantity': 72 } \nmsg.topic =\"sdm120\"\nreturn msg ",
"outputs": 1,
"noerr": 0,
"x": 340,
"y": 100,
"wires": [
[
"10575b73.1e080d"
]
]
},
{
"id": "10575b73.1e080d",
"type": "modbus-flex-getter",
"z": "c5d09c5.47fefe",
"name": "sdm120Read",
"showStatusActivities": true,
"showErrors": true,
"logIOActivities": false,
"server": "e022a16d.7d87e",
"useIOFile": false,
"ioFile": "",
"useIOForPayload": false,
"emptyMsgOnFail": false,
"x": 540,
"y": 100,
"wires": [
[
"c2897480.708678"
],
[]
]
},
{
"id": "c2897480.708678",
"type": "function",
"z": "c5d09c5.47fefe",
"name": "",
"func": "var rawData = new ArrayBuffer(4);\nvar intView = new Uint16Array(rawData);\nvar fltView = new Float32Array(rawData);\n\n\nintView[0] = msg.payload[1]; //low\nintView[1] = msg.payload[0]; //high\n\nvar msg1 = { payload:Math.round(parseFloat(fltView[0].toFixed(1))) };\nmsg1.topic = \"smd/1/voltage\";\n\n\n\nintView[0] = msg.payload[7]; //low\nintView[1] = msg.payload[6]; //high\n\nvar msg2 = { payload:parseFloat(fltView[0].toFixed(1)) };\nmsg2.topic = \"smd/1/current\";\n\n\n\nintView[0] = msg.payload[13]; //low\nintView[1] = msg.payload[12]; //high\nvar msg3 = { payload:Math.round(parseFloat(fltView[0].toFixed(1))) };\nmsg3.topic = \"smd/1/power\";\n\n\n\nintView[0] = msg.payload[71]; //low\nintView[1] = msg.payload[70]; //high\n\nvar msg4 = { payload:parseFloat(fltView[0].toFixed(1)) };\nmsg4.topic = \"smd/1/frequency\";\n\n\n\nreturn [msg1, msg2, msg3 , msg4 ];\n\n",
"outputs": 4,
"noerr": 0,
"x": 770,
"y": 100,
"wires": [
[
"f7a9ca52.3640d8"
],
[
"450203de.5d6c8c"
],
[
"76a2743f.cd745c"
],
[
"22d0c38e.84ee4c"
]
]
},
{
"id": "f7a9ca52.3640d8",
"type": "function",
"z": "c5d09c5.47fefe",
"name": "payload is changed",
"func": "var mem=context.get(\"memory\");\nvar forceCall=global.get(\"force_call\");\n\nnode.status({shape:\"ring\",fill:\"green\",text:\"msg: \"+msg.payload +\" | msg_old:\"+ mem + \" | fc: \"+forceCall});\n\nif ((msg.payload != mem || forceCall)) {\n context.set(\"memory\",msg.payload);\n return msg; \n }\n\nreturn null;\n\n",
"outputs": 1,
"noerr": 0,
"x": 1010,
"y": 80,
"wires": [
[
"25585f16.519318"
]
],
"info": "if msg payload is changed then return the msg.payload otherwise return null "
},
{
"id": "25585f16.519318",
"type": "mqtt out",
"z": "c5d09c5.47fefe",
"name": "",
"topic": "sdm120/1/voltage",
"qos": "0",
"retain": "true",
"broker": "3c4f987a.7246",
"x": 1250,
"y": 80,
"wires": []
},
{
"id": "3347fd0.b2d7284",
"type": "mqtt out",
"z": "c5d09c5.47fefe",
"name": "",
"topic": "sdm120/1/current",
"qos": "0",
"retain": "true",
"broker": "3c4f987a.7246",
"x": 1250,
"y": 140,
"wires": []
},
{
"id": "a9167b3c.ced7f8",
"type": "mqtt out",
"z": "c5d09c5.47fefe",
"name": "",
"topic": "sdm120/1/power",
"qos": "0",
"retain": "true",
"broker": "3c4f987a.7246",
"x": 1250,
"y": 200,
"wires": []
},
{
"id": "ced7c462.eda5d8",
"type": "mqtt out",
"z": "c5d09c5.47fefe",
"name": "",
"topic": "sdm120/1/frequency",
"qos": "0",
"retain": "true",
"broker": "3c4f987a.7246",
"x": 1300,
"y": 320,
"wires": []
},
{
"id": "22d0c38e.84ee4c",
"type": "function",
"z": "c5d09c5.47fefe",
"name": "payload is changed",
"func": "var mem=context.get(\"memory\");\nvar forceCall=global.get(\"force_call\");\n\nnode.status({shape:\"ring\",fill:\"green\",text:\"msg: \"+msg.payload +\" | msg_old:\"+ mem + \" | fc: \"+forceCall});\n\nif ((msg.payload != mem || forceCall)) {\n context.set(\"memory\",msg.payload);\n return msg; \n }\n\nreturn null;\n\n",
"outputs": 1,
"noerr": 0,
"x": 1010,
"y": 320,
"wires": [
[
"ced7c462.eda5d8"
]
],
"info": "if msg payload is changed then return the msg.payload otherwise return null "
},
{
"id": "76a2743f.cd745c",
"type": "function",
"z": "c5d09c5.47fefe",
"name": "payload is changed",
"func": "var mem=global.get(\"actPower\");\nvar forceCall=global.get(\"force_call\");\n\nnode.status({shape:\"ring\",fill:\"green\",text:\"msg: \"+msg.payload +\" | msg_old:\"+ mem + \" | fc: \"+forceCall});\n\nif ((msg.payload != mem || forceCall)) {\n global.set(\"actPower\",msg.payload);\n return msg; \n }\n\nreturn null;\n\n",
"outputs": 1,
"noerr": 0,
"x": 1010,
"y": 200,
"wires": [
[
"a9167b3c.ced7f8",
"46985845.386ec8"
]
],
"info": "if msg payload is changed then return the msg.payload otherwise return null "
},
{
"id": "450203de.5d6c8c",
"type": "function",
"z": "c5d09c5.47fefe",
"name": "payload is changed",
"func": "var mem=context.get(\"memory\");\nvar forceCall=global.get(\"force_call\");\n\nnode.status({shape:\"ring\",fill:\"green\",text:\"msg: \"+msg.payload +\" | msg_old:\"+ mem + \" | fc: \"+forceCall});\n\nif ((msg.payload != mem || forceCall)) {\n context.set(\"memory\",msg.payload);\n return msg; \n }\n\nreturn null;\n\n",
"outputs": 1,
"noerr": 0,
"x": 1010,
"y": 140,
"wires": [
[
"3347fd0.b2d7284"
]
],
"info": "if msg payload is changed then return the msg.payload otherwise return null "
},
{
"id": "7d61ce1e.d8198",
"type": "inject",
"z": "c5d09c5.47fefe",
"name": "",
"topic": "",
"payload": "true",
"payloadType": "str",
"repeat": "1800",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"x": 170,
"y": 460,
"wires": [
[
"73731ab6.b5b21c"
]
]
},
{
"id": "73731ab6.b5b21c",
"type": "function",
"z": "c5d09c5.47fefe",
"name": "",
"func": "var temp = msg.payload;\nnode.status({shape:\"ring\",fill:\"green\",text:temp});\nif ((temp == \"true\")) {\n global.set(\"force_call\",true);\n msg.payload =temp;\n return msg; \n }\n\n",
"outputs": 1,
"noerr": 0,
"x": 390,
"y": 460,
"wires": [
[
"2859bbe0.5b77a4"
]
]
},
{
"id": "2859bbe0.5b77a4",
"type": "delay",
"z": "c5d09c5.47fefe",
"name": "",
"pauseType": "delay",
"timeout": "10",
"timeoutUnits": "seconds",
"rate": "1",
"nbRateUnits": "1",
"rateUnits": "second",
"randomFirst": "1",
"randomLast": "5",
"randomUnits": "seconds",
"drop": false,
"x": 580,
"y": 460,
"wires": [
[
"91bb4da7.934a"
]
]
},
{
"id": "91bb4da7.934a",
"type": "function",
"z": "c5d09c5.47fefe",
"name": "",
"func": "var forceCall=global.get(\"force_call\");\nif ((forceCall === true)) {\n global.set(\"force_call\",false);\n msg.payload =\"false\";\n return msg; \n }\n\n",
"outputs": 1,
"noerr": 0,
"x": 750,
"y": 460,
"wires": [
[]
]
},
{
"id": "e022a16d.7d87e",
"type": "modbus-client",
"z": "",
"name": "Serial_9600_8_N_1",
"clienttype": "serial",
"bufferCommands": true,
"stateLogEnabled": false,
"queueLogEnabled": false,
"tcpHost": "127.0.0.1",
"tcpPort": "502",
"tcpType": "DEFAULT",
"serialPort": "/dev/ttyUSB1",
"serialType": "RTU-BUFFERD",
"serialBaudrate": "9600",
"serialDatabits": "8",
"serialStopbits": "1",
"serialParity": "none",
"serialConnectionDelay": "100",
"unit_id": "",
"commandDelay": "30",
"clientTimeout": "2000",
"reconnectOnTimeout": true,
"reconnectTimeout": "5000",
"parallelUnitIdsAllowed": false
},
{
"id": "3c4f987a.7246",
"type": "mqtt-broker",
"z": "",
"name": "",
"broker": "localhost",
"port": "1883",
"clientid": "",
"usetls": false,
"compatmode": false,
"keepalive": "60",
"cleansession": true,
"birthTopic": "",
"birthQos": "0",
"birthPayload": "",
"closeTopic": "",
"closeQos": "0",
"closePayload": "",
"willTopic": "",
"willQos": "0",
"willPayload": ""
}
]
1 Like
Hey Matteo,
sounds good to read all registers in one go.
The bus load is higher but the flow looks clearer 
Since I’m using node red in production system only testing new nodes takes time.
What happens if a bus error occurs and the value is unknown?
Is there a MQTT message triggered?
Regards
Uwe
after the last update to 2021.7 the reading of the estron via modbus no longer works. has anyone solved it?
Hi, the modbus config syntax changed. Did you check that?
yes, i have updated with the new configuration but it doesn’t work anyway. serial connection
Oke had to change too but i’m using rtuovertcp. This is (part of) my config now. Maybe it will help you:
- type: rtuovertcp
host: 192.168.5.20
port: 3001
name: lifzolder
sensors:
- name: solarkwh_v
unit_of_measurement: V
address: 0
input_type: input
count: 2
slave: 1
precision: 2
data_type: float
- name: solarkwh_a
unit_of_measurement: A
address: 6
input_type: input
count: 2
slave: 1
precision: 2
data_type: float
solved thanks to oliver, for those like me who have a serial connection, place my configuration
modbus:
- type: serial
method: rtu
port: /dev/ttyUSB0
baudrate: 9600
stopbits: 1
bytesize: 8
parity: N
name: eastron
sensors:
- name: voltaggio eastron
unit_of_measurement: V
address: 0
input_type: input
count: 2
slave: 1
precision: 0
data_type: float
modbus:
- name: sdm
type: serial
method: rtu
port: /dev/ttyUSB0
baudrate: 9600
stopbits: 1
bytesize: 8
parity: N
sensors:
- name: 630 Phase 2 line to neutral volts
precision: 2
register: 2
register_type: input
slave: 1
unit_of_measurement: Volts
count: 2
data_type: float
configuration check:
Invalid config for [modbus]: [register] is an invalid option for [modbus]. Check: modbus->modbus->0->sensors->0->register. (See /config/configuration.yaml, line 19).
Hi ebyna,
register is now address.
Some of the options changed, this is one of them.
Hi, could you show me your full configuration of this meter in your HA ?
Im fighting with it long time 
-(
Wthat thats means?
The system cannot restart because the configuration is not valid: Invalid config for [modbus]: value must be one of [<DataType.CUSTOM: ‘custom’>, <DataType.FLOAT16: ‘float16’>, <DataType.FLOAT32: ‘float32’>, <DataType.FLOAT64: ‘float64’>, <DataType.INT16: ‘int16’>, <DataType.INT32: ‘int32’>, <DataType.INT64: ‘int64’>, <DataType.INT8: ‘int8’>, <DataType.STRING: ‘string’>, <DataType.STRING: ‘string’>, <DataType.UINT16: ‘uint16’>, <DataType.UINT32: ‘uint32’>, <DataType.UINT64: ‘uint64’>, <DataType.UINT8: ‘uint8’>] for dictionary value @ data[‘modbus’][0][‘sensors’][0][‘data_type’]. Got ‘float’. (See /config/configuration.yaml, line 12).
### Modbus / Solar ###
modbus:
- type: rtuovertcp
host: 1.1.1.1
port: 3001
name: NAME
sensors:
- name: solarkwh_v
unit_of_measurement: V
address: 0
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: solarkwh_a
unit_of_measurement: A
address: 6
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
#A = +
- name: solarkwh_w
unit_of_measurement: W
address: 12
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
# reverse_order: true
- name: solarkwh_hz
unit_of_measurement: Hz
address: 70
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: solarkwh_kwhtotal
unit_of_measurement: kWh
address: 342
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: solarkwh_kwhimport
unit_of_measurement: kWh
address: 72
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: solarkwh_kwhexport
unit_of_measurement: kWh
address: 74
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
state_class: total_increasing
device_class: energy
1 Like
Something still is wrong on my HA
2022-08-30 16:32:06.005 ERROR (MainThread) [homeassistant.components.ipp.coordinator] Error fetching ipp data: Invalid response from API: Timeout occurred while connecting to IPP server.
I think meter and RS converter working well because on Domoticz everything was ok.
What converter are you using?
i hve got somenting like this:
https://www.google.com/imgres?imgurl=http%3A%2F%2Feliptor.pl%2Fgalerie%2Fk%2Fkonwerter-usb-rs485-ft232-ftdi_1819.jpg&imgrefurl=https%3A%2F%2Felecena.pl%2Fproduct%2F15802089%2Fkonwerter-usb-rs485-ft232-ftdi-z-zabezpieczeniami&tbnid=FVTn5lVNupEcbM&vet=12ahUKEwiohcnLl-_5AhXWrIsKHdj9Br4QMyg4egUIARCFAg..i&docid=AeAIwH3OMLFFXM&w=606&h=577&q=modbus%20converter%20ttl%20rs485&client=firefox-b-d&ved=2ahUKEwiohcnLl-_5AhXWrIsKHdj9Br4QMyg4egUIARCFAg
but with classic USB-A. It was working great with domoticz.
Now i think everything working well but i dont know where to find this data in HA. What should i do ?
I have modified configuration.yaml as you wtore with small modification - now everything is working (there aro noerror messages) but i dont know how to showi it in my dashboard.
Im the really begginer and i cannot find a propper manual on internet.
Ah I see.
You changed my config, right? Becuase I’m using a network connected converter.
That’s right. i have chacnged your config and it looks like bellow.
I was checked modbus communication with my notebook and it is working.
modbus:
- name: eastron
type: serial
method: rtu
port: /dev/ttyUSB0
baudrate: 2400
stopbits: 1
bytesize: 8
parity: N
sensors:
- name: Volts
unit_of_measurement: V
address: 0
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: Current
unit_of_measurement: A
address: 6
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: Active_Power
unit_of_measurement: W
address: 12
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: Frequency
unit_of_measurement: Hz
address: 70
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: Import_Active_Energy
unit_of_measurement: kWh
address: 72
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
- name: Total_Active_Energy
unit_of_measurement: kWh
address: 342
input_type: input
count: 2
slave: 1
precision: 2
data_type: float32
So how can i show this values in homeassistant now ?
edit:
I have found sensors and everything is working now 
Thank you all.
1 Like