Hi,
Sure it’s not port 502? (typically standard Modbus port)
This was my previous VTR300 config before moving the integration to node-red
modbus:
- name: VTR300
type: tcp
host: !secret vtr300_host
port: 502
timeout: 3 #Timeout for slave response in seconds (default=3)
delay: 3 #Time to sleep in seconds after connecting and before sending messages
@Tempo_Trevis I cannot belienve it, it worked! No idea why they say its port 8989 but now I get a connection 
Thank you, you just made my day!
Glad i worked:)
My experience is that it is common that Modbus documentation has flaws (including the VTR300 modbus adr. list)… Modscan32 is a great tool for checking modbus registers data/values as it gives easy access to check values from many registers at the same time.
Yea strange, shouldn’t be that hard to update the manuals
Just tried Modscan32, works great except the limitations of trial period. Thanks for the tip! Now I’ll just have to get the values to HA.
Any joy? I just started exploring this today, trying and failing testing with pymodbus.
If you would share your config, that would be awesome
Just found this – looks interesting
Hey! Any luck? I moved over to Node Red and manage to read the registers but Im having a hard time reading the array of data I get in response. Might just move back to good ol’ configuration.yaml and have a go at it with the config from that post
Dont give up on modbus using node red, i saves you for looong yaml files if you are integrating the same features from the unit i’m integrating.
May this helps out as a start? (not possible to paste more code due to the size).
Reading modbus registers (sensors):
[{"id":"c65a5a65.72f3b8","type":"inject","z":"c1e03843.9d14a8","name":"Poll(10s)","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"10","crontab":"","once":true,"onceDelay":"10","topic":"","payload":"","payloadType":"date","x":80,"y":580,"wires":[["68a6b029.eb563","705bcad4.194ec4","80d78914.de5d38","1aedba91.04b3f5","b5d6e697.144ba8","f8e6582c.4ec7e8","3a7de46.32ee01c","5ea6e1d2.0b447","219b6a9a.0ed5e6","e6d9f4c7.a48278"]]},{"id":"68a6b029.eb563","type":"function","z":"c1e03843.9d14a8","name":"Modbus read","func":"var fc=3;\nvar sa=1254;\nvar addresses=1;\nvar slave_ip=msg.payload.slave_ip;\n\nmsg.slave_ip=\"192.168.1.30\";\nmsg.payload={value: msg.payload, 'fc': fc, 'unitid': 1, 'address': sa , 'quantity': addresses };\nreturn msg;\n\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":250,"y":580,"wires":[["84937855.5af778"]]},{"id":"84937855.5af778","type":"modbus-flex-getter","z":"c1e03843.9d14a8","name":"Sensor","showStatusActivities":false,"showErrors":true,"logIOActivities":false,"server":"86a33495.600fd8","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":false,"keepMsgProperties":false,"x":400,"y":580,"wires":[[],["7bd64506.de398c"]],"info":"VTR300 Intern UR"},{"id":"7bd64506.de398c","type":"function","z":"c1e03843.9d14a8","name":"0-5000rpm","func":"var Rpm = msg.payload.data[0];\n\nmsg.payload = Rpm;\nreturn msg;\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":550,"y":580,"wires":[["e310653.30ff398"]]},{"id":"e310653.30ff398","type":"ha-entity","z":"c1e03843.9d14a8","name":"Vifte Komp. [rpm]","server":"2c4e313e.d0fc5e","version":1,"debugenabled":false,"outputs":1,"entityType":"sensor","config":[{"property":"name","value":"vtr300_vifte_hast_komp_rpm"},{"property":"device_class","value":"power_factor"},{"property":"icon","value":""},{"property":"unit_of_measurement","value":"rpm"}],"state":"payload","stateType":"msg","attributes":[],"resend":false,"outputLocation":"","outputLocationType":"none","inputOverride":"allow","x":810,"y":580,"wires":[[]],"info":"# Utekompensert vifte kompensering:\n0% til 50% pådrags kompensering "},{"id":"705bcad4.194ec4","type":"function","z":"c1e03843.9d14a8","name":"Modbus read","func":"var fc=3;\nvar sa=12102;\nvar addresses=1;\nvar slave_ip=msg.payload.slave_ip;\n\nmsg.slave_ip=\"192.168.1.30\";\nmsg.payload={value: msg.payload, 'fc': fc, 'unitid': 1, 'address': sa , 'quantity': addresses };\nreturn msg;\n\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":250,"y":620,"wires":[["79fc3ca2.89c304"]]},{"id":"79fc3ca2.89c304","type":"modbus-flex-getter","z":"c1e03843.9d14a8","name":"Sensor","showStatusActivities":false,"showErrors":true,"logIOActivities":false,"server":"86a33495.600fd8","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":false,"keepMsgProperties":false,"x":400,"y":620,"wires":[[],["5627d7d5.1ce3e8"]],"info":"VTR300 Intern UR"},{"id":"5627d7d5.1ce3e8","type":"function","z":"c1e03843.9d14a8","name":"Range -40->80","func":"var Temp_raw = msg.payload.data[0];\nvar Temp_scaled;\n\nif (Temp_raw < 6280) { \n Temp_scaled = (Temp_raw *0.1);\n}\nelse {\n Temp_scaled = ((Temp_raw - 65535) *0.1); \n}\n\nmsg.payload = parseFloat((Temp_scaled).toFixed(2));\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":560,"y":620,"wires":[["8e139b51.6e3fe8"]],"info":"# Engineering range: -40°C -> 50°C\n"},{"id":"1aedba91.04b3f5","type":"function","z":"c1e03843.9d14a8","name":"Modbus read","func":"var fc=3;\nvar sa=12101;\nvar addresses=1;\nvar slave_ip=msg.payload.slave_ip;\n\nmsg.slave_ip=\"192.168.1.30\";\nmsg.payload={value: msg.payload, 'fc': fc, 'unitid': 1, 'address': sa , 'quantity': addresses };\nreturn msg;\n\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":250,"y":700,"wires":[["8d6ef3f4.328dc"]]},{"id":"8d6ef3f4.328dc","type":"modbus-flex-getter","z":"c1e03843.9d14a8","name":"Sensor","showStatusActivities":false,"showErrors":true,"logIOActivities":false,"server":"86a33495.600fd8","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":false,"keepMsgProperties":false,"x":400,"y":700,"wires":[[],["87791222.6ca83"]],"info":"VTR300 Intern UR"},{"id":"87791222.6ca83","type":"function","z":"c1e03843.9d14a8","name":"Range -40->80","func":"var Temp_raw = msg.payload.data[0];\nvar Temp_scaled;\n\nif (Temp_raw < 6280) { \n Temp_scaled = (Temp_raw *0.1);\n}\nelse {\n Temp_scaled = ((Temp_raw - 65535) *0.1); \n}\n\nmsg.payload = parseFloat((Temp_scaled).toFixed(2));\nreturn msg;\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":560,"y":700,"wires":[["24aa165e.573b2a"]],"info":"# Engineering range: -40°C -> 50°C"},{"id":"24aa165e.573b2a","type":"ha-entity","z":"c1e03843.9d14a8","name":"Inntakstemp. [°C]","server":"2c4e313e.d0fc5e","version":1,"debugenabled":false,"outputs":1,"entityType":"sensor","config":[{"property":"name","value":"vtr300_inntaks_temperatur"},{"property":"device_class","value":"temperature"},{"property":"icon","value":"mdi:thermometer"},{"property":"unit_of_measurement","value":"°C"}],"state":"payload","stateType":"msg","attributes":[],"resend":false,"outputLocation":"","outputLocationType":"none","inputOverride":"allow","x":810,"y":700,"wires":[[]],"info":"# Utekompensert vifte kompensering:\n0% til 50% pådrags kompensering "},{"id":"8e139b51.6e3fe8","type":"ha-entity","z":"c1e03843.9d14a8","name":"Tilluftstemp. [°C]","server":"2c4e313e.d0fc5e","version":1,"debugenabled":false,"outputs":1,"entityType":"sensor","config":[{"property":"name","value":"vtr300_tillufts_temperatur"},{"property":"device_class","value":"temperature"},{"property":"icon","value":"mdi:thermometer"},{"property":"unit_of_measurement","value":"°C"}],"state":"payload","stateType":"msg","attributes":[],"resend":false,"outputLocation":"","outputLocationType":"none","inputOverride":"allow","x":800,"y":620,"wires":[[]],"info":"# Utekompensert vifte kompensering:\n0% til 50% pådrags kompensering "},{"id":"b5d6e697.144ba8","type":"function","z":"c1e03843.9d14a8","name":"Modbus read","func":"var fc=3;\nvar sa=12543;\nvar addresses=1;\nvar slave_ip=msg.payload.slave_ip;\n\nmsg.slave_ip=\"192.168.1.30\";\nmsg.payload={value: msg.payload, 'fc': fc, 'unitid': 1, 'address': sa , 'quantity': addresses };\nreturn msg;\n\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":250,"y":740,"wires":[["c6d50893.ed54c8"]],"info":"# 2050 NB!EAT/RAT used for extract air controller, benyttes pga. avtrekk AI er \"ekstrautstyr\""},{"id":"c6d50893.ed54c8","type":"modbus-flex-getter","z":"c1e03843.9d14a8","name":"Sensor","showStatusActivities":false,"showErrors":true,"logIOActivities":false,"server":"86a33495.600fd8","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":false,"keepMsgProperties":false,"x":400,"y":740,"wires":[[],["573f9e49.21545"]],"info":"VTR300 Intern UR"},{"id":"573f9e49.21545","type":"function","z":"c1e03843.9d14a8","name":"Range -40->80","func":"var Temp_raw = msg.payload.data[0];\nvar Temp_scaled;\n\nif (Temp_raw < 6280) { \n Temp_scaled = (Temp_raw *0.1);\n}\nelse {\n Temp_scaled = ((Temp_raw - 65535) *0.1); \n}\n\nmsg.payload = parseFloat((Temp_scaled).toFixed(2));\nreturn msg;\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":560,"y":740,"wires":[["8caa3e3a.f515c"]],"info":"# Engineering range: -40°C -> 50°C"},{"id":"8caa3e3a.f515c","type":"ha-entity","z":"c1e03843.9d14a8","name":"Avtrekkstemp. [°C]","server":"2c4e313e.d0fc5e","version":1,"debugenabled":false,"outputs":1,"entityType":"sensor","config":[{"property":"name","value":"vtr300_avtrekks_temperatur"},{"property":"device_class","value":"temperature"},{"property":"icon","value":"mdi:thermometer"},{"property":"unit_of_measurement","value":"°C"}],"state":"payload","stateType":"msg","attributes":[],"resend":false,"outputLocation":"","outputLocationType":"none","inputOverride":"allow","x":810,"y":740,"wires":[[]],"info":"# Utekompensert vifte kompensering:\n0% til 50% pådrags kompensering "},{"id":"80d78914.de5d38","type":"function","z":"c1e03843.9d14a8","name":"Modbus read","func":"var fc=3;\nvar sa=12107;\nvar addresses=1;\nvar slave_ip=msg.payload.slave_ip;\n\nmsg.slave_ip=\"192.168.1.30\";\nmsg.payload={value: msg.payload, 'fc': fc, 'unitid': 1, 'address': sa , 'quantity': addresses };\nreturn msg;\n\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":250,"y":660,"wires":[["28f35935.b68ff6"]],"info":"# 2050 NB!EAT/RAT used for extract air controller, benyttes pga. avtrekk AI er \"ekstrautstyr\""},{"id":"28f35935.b68ff6","type":"modbus-flex-getter","z":"c1e03843.9d14a8","name":"Sensor","showStatusActivities":false,"showErrors":true,"logIOActivities":false,"server":"86a33495.600fd8","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":false,"keepMsgProperties":false,"x":400,"y":660,"wires":[[],["de46baec.e636e8"]],"info":"VTR300 Intern UR"},{"id":"de46baec.e636e8","type":"function","z":"c1e03843.9d14a8","name":"Range -40->80","func":"var Temp_raw = msg.payload.data[0];\nvar Temp_scaled;\n\nif (Temp_raw < 6280) { \n Temp_scaled = (Temp_raw *0.1);\n}\nelse {\n Temp_scaled = ((Temp_raw - 65535) *0.1); \n}\n\nmsg.payload = parseFloat((Temp_scaled).toFixed(2));\nreturn msg;\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":560,"y":660,"wires":[["17f5ddc3.689502"]],"info":"# Engineering range: -40°C -> 50°C"},{"id":"17f5ddc3.689502","type":"ha-entity","z":"c1e03843.9d14a8","name":"Tilluftstemp. Overhetn. [°C]","server":"2c4e313e.d0fc5e","version":1,"debugenabled":false,"outputs":1,"entityType":"sensor","config":[{"property":"name","value":"vtr300_overhetingstemperatur_tilluft"},{"property":"device_class","value":"temperature"},{"property":"icon","value":"mdi:thermometer"},{"property":"unit_of_measurement","value":"°C"}],"state":"payload","stateType":"msg","attributes":[],"resend":false,"outputLocation":"","outputLocationType":"none","inputOverride":"allow","x":840,"y":660,"wires":[[]],"info":"# Utekompensert vifte kompensering:\n0% til 50% pådrags kompensering "},{"id":"86a33495.600fd8","type":"modbus-client","name":"VTR300","clienttype":"tcp","bufferCommands":true,"stateLogEnabled":false,"queueLogEnabled":false,"tcpHost":"192.168.1.30","tcpPort":"502","tcpType":"DEFAULT","serialPort":"/dev/ttyUSB","serialType":"RTU-BUFFERD","serialBaudrate":"9600","serialDatabits":"8","serialStopbits":"1","serialParity":"none","serialConnectionDelay":"100","unit_id":1,"commandDelay":1,"clientTimeout":1000,"reconnectOnTimeout":true,"reconnectTimeout":2000,"parallelUnitIdsAllowed":true},{"id":"2c4e313e.d0fc5e","type":"server","name":"Home Assistant","addon":true}]
Modbus write/readback:
[{"id":"87361de4.0b4aa","type":"modbus-flex-write","z":"c1e03843.9d14a8","name":"Set state","showStatusActivities":false,"showErrors":true,"server":"86a33495.600fd8","emptyMsgOnFail":false,"keepMsgProperties":false,"x":840,"y":3820,"wires":[[],[]]},{"id":"668663b5.e26c4c","type":"function","z":"c1e03843.9d14a8","name":"On/Off","func":"var fc=6;\nvar sa=2504;\nvar addresses=1;\nvar value=msg.payload;\n\nmsg.slave_ip=\"192.168.1.30\";\nmsg.payload={\"value\":value , 'fc': fc, 'unitid': 1, 'address': sa , 'quantity': addresses };\nreturn msg;\n\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":710,"y":3820,"wires":[["87361de4.0b4aa"]],"info":"# 0 Deaktiverer Eco drift\n# 1 Aktiverer Eco"},{"id":"ec5d08d0.5511b8","type":"rbe","z":"c1e03843.9d14a8","name":"POC","func":"rbe","gap":"","start":"","inout":"out","property":"payload","x":590,"y":3820,"wires":[["668663b5.e26c4c"]],"info":"Videresender kun nye verdier/endringer for å hindre unødig data til modbus slave."},{"id":"a0729a78.535c78","type":"trigger","z":"c1e03843.9d14a8","name":"Tr.5s","op1":"","op2":"","op1type":"nul","op2type":"payl","duration":"5","extend":true,"overrideDelay":false,"units":"s","reset":"","bytopic":"all","topic":"topic","outputs":1,"x":470,"y":3820,"wires":[["ec5d08d0.5511b8"]],"info":"Videresender siste verdi etter 5 sek. for å unngå å jamme ned modbus slave, om ikke går ikke settpunkt gjennom."},{"id":"e204afdb.d756e","type":"change","z":"c1e03843.9d14a8","name":"Str.-->INT","rules":[{"t":"change","p":"payload","pt":"msg","from":"off","fromt":"str","to":"0","tot":"num"},{"t":"change","p":"payload","pt":"msg","from":"on","fromt":"str","to":"1","tot":"num"}],"action":"","property":"","from":"","to":"","reg":false,"x":340,"y":3820,"wires":[["a0729a78.535c78"]]},{"id":"aa920ab1.412b28","type":"inject","z":"c1e03843.9d14a8","name":"Poll(20s)","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"20","crontab":"","once":true,"onceDelay":"10","topic":"","payload":"","payloadType":"date","x":120,"y":3880,"wires":[["f04e59c8.5b2e88"]]},{"id":"f04e59c8.5b2e88","type":"function","z":"c1e03843.9d14a8","name":"Read","func":"var fc=3;\nvar sa=2504;\nvar addresses=1;\nvar slave_ip=msg.payload.slave_ip;\n\nmsg.slave_ip=\"192.168.1.30\";\nmsg.payload={value: msg.payload, 'fc': fc, 'unitid': 1, 'address': sa , 'quantity': addresses };\nreturn msg;\n\n","outputs":1,"noerr":0,"initialize":"","finalize":"","x":250,"y":3880,"wires":[["f5091f5f.b5b9c"]]},{"id":"f5091f5f.b5b9c","type":"modbus-flex-getter","z":"c1e03843.9d14a8","name":"Modbus","showStatusActivities":false,"showErrors":true,"logIOActivities":false,"server":"86a33495.600fd8","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":false,"keepMsgProperties":false,"x":380,"y":3880,"wires":[[],["57cebaa5.bc2e94"]],"info":"VTR300 Intern UR"},{"id":"57cebaa5.bc2e94","type":"function","z":"c1e03843.9d14a8","name":"Eco mode","func":"var msg0 = msg.payload.data[0];\n\nmsg.payload = msg0;\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":520,"y":3880,"wires":[["344e1f2d.df892","66c96a52.373bc4"]],"info":"# Engineering range: -30°C -> 0°C\n\nRaw 0 = 0°C\nRaw 65526 = -1°C\nRaw 65236 = -15°C\n\nRange 65526 - 65236 = 290\n290/29= 10Raw/1°C"},{"id":"344e1f2d.df892","type":"delay","z":"c1e03843.9d14a8","name":"","pauseType":"delay","timeout":"2","timeoutUnits":"seconds","rate":"1","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":660,"y":3880,"wires":[["9e1413fb.8afb6"]]},{"id":"9e1413fb.8afb6","type":"rbe","z":"c1e03843.9d14a8","name":"POC","func":"rbe","gap":"","start":"","inout":"out","property":"payload","x":790,"y":3880,"wires":[["1ca24cdc.d0ba03"]]},{"id":"c244f269.9faec","type":"change","z":"c1e03843.9d14a8","name":"Off ","rules":[{"t":"change","p":"payload","pt":"msg","from":"0","fromt":"num","to":"off","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":1050,"y":3860,"wires":[["6cb7ca60.5c64e4"]]},{"id":"1ca24cdc.d0ba03","type":"switch","z":"c1e03843.9d14a8","name":"Int->Str.","property":"payload","propertyType":"msg","rules":[{"t":"eq","v":"0","vt":"num"},{"t":"eq","v":"1","vt":"num"}],"checkall":"true","repair":false,"outputs":2,"x":920,"y":3880,"wires":[["c244f269.9faec"],["fcc9726e.ec7"]]},{"id":"fcc9726e.ec7","type":"change","z":"c1e03843.9d14a8","name":"On","rules":[{"t":"change","p":"payload","pt":"msg","from":"1","fromt":"num","to":"on","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":1050,"y":3900,"wires":[["71b09b27.5220b4"]]},{"id":"66c96a52.373bc4","type":"ha-entity","z":"c1e03843.9d14a8","name":"Eco mode state","server":"2c4e313e.d0fc5e","version":1,"debugenabled":false,"outputs":1,"entityType":"binary_sensor","config":[{"property":"name","value":"vtr300_eco_mode_state"},{"property":"device_class","value":""},{"property":"icon","value":"mdi:leaf"},{"property":"unit_of_measurement","value":""}],"state":"payload","stateType":"msg","attributes":[],"resend":false,"outputLocation":"","outputLocationType":"none","inputOverride":"allow","outputOnStateChange":false,"outputPayload":"","outputPayloadType":"str","x":680,"y":3920,"wires":[[]]},{"id":"940bc341.d45bc","type":"server-state-changed","z":"c1e03843.9d14a8","name":"Eco mode trigger","server":"2c4e313e.d0fc5e","version":1,"exposeToHomeAssistant":false,"haConfig":[{"property":"name","value":""},{"property":"icon","value":""}],"entityidfilter":"input_boolean.vtr300_eco_mode_dummy","entityidfiltertype":"exact","outputinitially":false,"state_type":"str","haltifstate":"","halt_if_type":"str","halt_if_compare":"is","outputs":1,"output_only_on_state_change":true,"for":0,"forType":"num","forUnits":"milliseconds","ignorePrevStateNull":true,"ignorePrevStateUnknown":true,"ignorePrevStateUnavailable":true,"ignoreCurrentStateUnknown":true,"ignoreCurrentStateUnavailable":true,"x":120,"y":3820,"wires":[["e204afdb.d756e"]]},{"id":"6cb7ca60.5c64e4","type":"api-call-service","z":"c1e03843.9d14a8","name":"Set Eco. Off","server":"868599a7.b14688","version":1,"debugenabled":false,"service_domain":"switch","service":"turn_off","entityId":"switch.vtr300_eco_mode","data":"","dataType":"json","mergecontext":"","output_location":"payload","output_location_type":"msg","mustacheAltTags":false,"x":1190,"y":3860,"wires":[[]]},{"id":"71b09b27.5220b4","type":"api-call-service","z":"c1e03843.9d14a8","name":"Set Eco. On","server":"868599a7.b14688","version":1,"debugenabled":false,"service_domain":"switch","service":"turn_on","entityId":"switch.vtr300_eco_mode","data":"","dataType":"json","mergecontext":"","output_location":"payload","output_location_type":"msg","mustacheAltTags":false,"x":1190,"y":3900,"wires":[[]]},{"id":"86a33495.600fd8","type":"modbus-client","name":"VTR300","clienttype":"tcp","bufferCommands":true,"stateLogEnabled":false,"queueLogEnabled":false,"tcpHost":"192.168.1.30","tcpPort":"502","tcpType":"DEFAULT","serialPort":"/dev/ttyUSB","serialType":"RTU-BUFFERD","serialBaudrate":"9600","serialDatabits":"8","serialStopbits":"1","serialParity":"none","serialConnectionDelay":"100","unit_id":1,"commandDelay":1,"clientTimeout":1000,"reconnectOnTimeout":true,"reconnectTimeout":2000,"parallelUnitIdsAllowed":true},{"id":"2c4e313e.d0fc5e","type":"server","name":"Home Assistant","addon":true},{"id":"868599a7.b14688","type":"server","name":"Home Assistant","addon":true}]
Wow, that helped immensely! I was way off trying to read the numbers coming in. Tried everything from node.js buf api. This seems to do the trick. Thanks alot
Hello. I would like to ask you for help with this: I have specification, wehere BMS manufacturer writes:
Register address (HEX): 1107
Remarks: 1%
MBAP Head: 7 Bytes
Function code: 1 Byte
Data lenght: 1 Byte
Data: N Bytes
How should look modbus.yaml configuration please?
Thank you
It’s Modbus TCP. Address in decimal
Ye, thank you, of course. But how exactly should look config? Decimal mean uint or uint16? Where to wirght data lenght? How about MBAP etc?
I have this in a package. Should work if you put that in a yaml file and include that in your config.
modbus:
- name: VSR300
type: tcp
host: 192.168.1.204
port: 502
timeout: 3 #Timeout for slave response in seconds (default=3)
delay: 3 #Time to sleep in seconds after connecting and before sending messages (defualt=0)
climates:
- name: vent_VSR300
address: 12102
slave: 1
scale: 0.1
offset: 0
precision: 1
max_temp: 30
min_temp: 15
temp_step: 1
target_temp_register: 2000
modbus:
- name: edpbox3
type: tcp
host: 10.1.0.47
port: 9502
delay: 1
timeout: 3
retries: 3
retry_on_empty: true
message_wait_milliseconds: 250
sensors:
- name: "EB3 Voltage L1" # 0x006C
slave: 1
address: 108
input_type: input
count: 1
data_type: uint16
precision: 1
scale: 0.1
unit_of_measurement: V
device_class: voltage
scan_interval: 15
This is an example for me?
I believe so.
This is an example of query from tecnical manual:
Single machine use, communication ID is set to 1, EMS communicates directly with
RBMS
Query operational status 00 00 00 00 00 06 01 03 11 00 00 2D(HEX)
Here is URL for this document: PDF Host - Edit
Could you please point me how should look HA modbus.yaml in this case?
0x1000 Total Voltage
0x1000 hex = 4096 decimal
- name: "Total Voltage" # 0x1000
slave: 1
address: 4096
input_type: holding
count: 1
data_type: uint16
precision: 1
scale: 0.1
unit_of_measurement: V
device_class: voltage
01 - slave
03 - function
11 00 - register
00 2D - count
Thank you very much @nikito7 will try it. Please is there some way how to have 2 modbus devices against single instance of HA? I have two devices, both communicating using Modbus TCP.
I found this: Ability to add multiple modbus hubs - #45 by wellsy
Now my modbus.yaml looks like this:
- name: "Nibe"
type: tcp
host: 192.168.1.102
port: 502
- name: "BMS"
type: tcp
host: 192.168.1.20
port: 502
sensors:
# Overview
- name: "Heatpump - Power Usage"
unique_id: "power_usage"
unit_of_measurement: "W"
data_type: int16
device_class: power
address: 2166
input_type: input
scale: 1
precision: 0
slave: 1
hub: Nibe
- name: "Heatpump - Priority"
unique_id: "operating_prioritisation"
data_type: int16 # int8
# 10: Off, 20: Hot Water, 30: Heat, 40: Pool, 60: Cooling
address: 1028
input_type: input # R/W
scale: 1
precision: 0
state_class: measurement
slave: 1
hub: Nibe
but there is an error preventing me to restart HASS: Invalid config for [modbus]: [hub] is an invalid option for [modbus]. Check: modbus->modbus->1->sensors->0->hub.
Any idea? I tried to set it as in this post: Ability to add multiple modbus hubs - #49 by cconnoruk