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[captainchaos666]

Hallo an Alle,
sollte eure Hilfe haben. Versuche über Modbus RTU zwei Geräte auszulesen. Habe für jedes Gerät eine Instanz angelegt. Wenn ich diese nacheinander starte dann laufen diese, sprich die Daten werden zyklisch gepollt.

Wenn ich beide in eine Instanz packe dann kann ich eine gewisse Zeit Daten pollen. Danach bekomme ich folgende Fehlermledungen

Error: undefined
Request timed out
Poll error count: 1 code: {"err":"timeout","timeout":5000}

Habt ihr eine Idee was ich falsch mache?

Gruß Alex

2021-09-03 22:51:35.677 - info: modbus.2 (679) starting. Version 3.4.14 in /opt/iobroker/node_modules/iobroker.modbus, node: v12.22.6, js-controller: 3.3.15
2021-09-03 22:51:35.799 - silly: modbus.2 (679) States system redis pmessage system.adapter.modbus.2.logLevel/system.adapter.modbus.2.logLevel:{"val":"silly","ack":true,"ts":1630702295785,"q":0,"from":"system.adapter.modbus.2","lc":1630700299550}
2021-09-03 22:51:35.848 - debug: modbus.2 (679) Initialize Objects for disInputs: []
2021-09-03 22:51:35.848 - debug: modbus.2 (679) Initialize Objects for coils: []
2021-09-03 22:51:35.849 - debug: modbus.2 (679) Initialize Objects for inputRegs: [{"_address":"13009","deviceId":1,"name":"Sungrow_SmartMeter_P","description":"Sungrow_SmartMeter_P","unit":"","type":"int32sw","len":2,"factor":1,"offset":0,"formula":"","role":"level","room":"","cw":"","isScale":"","address":13009,"id":"inputRegisters.1.13009_Sungrow_SmartMeter_P"}]
2021-09-03 22:51:35.849 - debug: modbus.2 (679) Add inputRegisters.1.13009_Sungrow_SmartMeter_P: {"_id":"inputRegisters.1.13009_Sungrow_SmartMeter_P","type":"state","common":{"name":"Sungrow_SmartMeter_P","role":"level","type":"number","read":true,"write":false,"def":0,"unit":""},"native":{"regType":"inputRegs","address":13009,"deviceId":1,"type":"int32sw","len":2,"offset":0,"factor":1}}
2021-09-03 22:51:35.850 - debug: modbus.2 (679) Initialize Objects for holdingRegs: [{"_address":"1021","name":"Ewa_Temp","description":"Elwa_Temp","unit":"","type":"uint16be","len":1,"factor":"0.1","offset":0,"formula":"","role":"level","room":"","poll":true,"wp":"","cw":"","isScale":"","address":"1021","deviceId":5}]
2021-09-03 22:51:35.850 - debug: modbus.2 (679) Add undefined: {"type":"state","common":{"name":"Elwa_Temp","role":"level","type":"number","read":true,"write":true,"def":0,"unit":""},"native":{"regType":"holdingRegs","address":"1021","deviceId":5,"type":"uint16be","len":1,"offset":0,"factor":"0.1","poll":true}}
2021-09-03 22:51:35.851 - debug: modbus.2 (679) Initialize Objects for disInputs: []
2021-09-03 22:51:35.852 - debug: modbus.2 (679) Initialize Objects for coils: []
2021-09-03 22:51:35.852 - debug: modbus.2 (679) Initialize Objects for inputRegs: [{"_address":"13009","deviceId":1,"name":"Sungrow_SmartMeter_P","description":"Sungrow_SmartMeter_P","unit":"","type":"int32sw","len":2,"factor":1,"offset":0,"formula":"","role":"level","room":"","cw":"","isScale":"","address":13009,"id":"inputRegisters.1.13009_Sungrow_SmartMeter_P","fullId":"modbus.2.inputRegisters.1.13009_Sungrow_SmartMeter_P"}]
2021-09-03 22:51:35.852 - debug: modbus.2 (679) Add inputRegisters.1.13009_Sungrow_SmartMeter_P: {"_id":"inputRegisters.1.13009_Sungrow_SmartMeter_P","type":"state","common":{"name":"Sungrow_SmartMeter_P","role":"level","type":"number","read":true,"write":false,"def":0,"unit":""},"native":{"regType":"inputRegs","address":13009,"deviceId":1,"type":"int32sw","len":2,"offset":0,"factor":1}}
2021-09-03 22:51:35.853 - debug: modbus.2 (679) Initialize Objects for holdingRegs: [{"_address":"1021","name":"Ewa_Temp","description":"Elwa_Temp","unit":"","type":"uint16be","len":1,"factor":0.1,"offset":0,"formula":"","role":"level","room":"","poll":true,"wp":"","cw":"","isScale":"","address":1021,"deviceId":5,"fullId":"modbus.2.0","id":"holdingRegisters.5.1021_Ewa_Temp"}]
2021-09-03 22:51:35.853 - debug: modbus.2 (679) Add holdingRegisters.5.1021_Ewa_Temp: {"_id":"holdingRegisters.5.1021_Ewa_Temp","type":"state","common":{"name":"Elwa_Temp","role":"level","type":"number","read":true,"write":true,"def":0,"unit":""},"native":{"regType":"holdingRegs","address":1021,"deviceId":5,"type":"uint16be","len":1,"offset":0,"factor":0.1,"poll":true}}
2021-09-03 22:51:36.177 - debug: modbus.2 (679) connect to serial /dev/ttyUSB0 with 9600
2021-09-03 22:51:36.191 - info: modbus.2 (679) Connected to slave
2021-09-03 22:51:36.192 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:36.194 - debug: modbus.2 (679) Initialization of scale factors done!
2021-09-03 22:51:36.195 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:36.209 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.info.connection:{"val":false,"ack":true,"ts":1630702296187,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702269787}
2021-09-03 22:51:36.217 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.info.connection:{"val":true,"ack":true,"ts":1630702296214,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702296214}
2021-09-03 22:51:36.234 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:36.243 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.inputRegisters.1.13009_Sungrow_SmartMeter_P:{"val":-571,"ack":true,"ts":1630702296240,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702296240}
2021-09-03 22:51:36.247 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.info.pollTime:{"val":45,"ack":true,"ts":1630702296241,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702296241}
2021-09-03 22:51:36.289 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:36.290 - debug: modbus.2 (679) Initialization of scale factors done!
2021-09-03 22:51:36.291 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:36.312 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:36.319 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.holdingRegisters.5.1021_Ewa_Temp:{"val":68.1,"ack":true,"ts":1630702296316,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702296316}
2021-09-03 22:51:37.365 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:37.366 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:37.391 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:37.442 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:37.443 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:37.463 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:38.516 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:38.517 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:38.546 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:38.598 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:38.599 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:38.619 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:39.672 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:39.673 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:39.701 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:39.753 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:39.753 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:39.773 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:39.789 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.holdingRegisters.5.1021_Ewa_Temp:{"val":68.2,"ack":true,"ts":1630702299787,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702299787}
2021-09-03 22:51:40.825 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:40.826 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:40.856 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:40.908 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:40.908 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:40.928 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:41.980 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:41.981 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:42.006 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:42.012 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.inputRegisters.1.13009_Sungrow_SmartMeter_P:{"val":-570,"ack":true,"ts":1630702302010,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702302010}
2021-09-03 22:51:42.059 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:42.059 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:42.079 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:42.125 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.holdingRegisters.5.1021_Ewa_Temp:{"val":68,"ack":true,"ts":1630702302123,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702302123}
2021-09-03 22:51:43.132 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:43.132 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:43.161 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:43.213 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:43.213 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:43.234 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:44.286 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:44.287 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:44.316 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:44.368 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:44.368 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:44.388 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:44.394 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.holdingRegisters.5.1021_Ewa_Temp:{"val":68.1,"ack":true,"ts":1630702304391,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702304391}
2021-09-03 22:51:45.440 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:45.440 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:45.466 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:45.518 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:45.518 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:45.539 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:46.592 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:46.592 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:46.621 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:46.672 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:46.673 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:46.693 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:46.700 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.holdingRegisters.5.1021_Ewa_Temp:{"val":68.2,"ack":true,"ts":1630702306697,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702306697}
2021-09-03 22:51:47.745 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:47.746 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:47.782 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:47.834 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:47.835 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:47.854 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 DONE
2021-09-03 22:51:48.906 - debug: modbus.2 (679) [DevID_1] Poll start ---------------------
2021-09-03 22:51:48.906 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 - 2 registers
2021-09-03 22:51:48.931 - debug: modbus.2 (679) [DevID_1/inputRegs] Poll address 13009 DONE
2021-09-03 22:51:48.982 - debug: modbus.2 (679) [DevID_5] Poll start ---------------------
2021-09-03 22:51:48.983 - debug: modbus.2 (679) [DevID_5/holdingRegs] Poll address 1021 - 1 registers
2021-09-03 22:51:53.987 - warn: modbus.2 (679) Error: undefined
2021-09-03 22:51:53.988 - error: modbus.2 (679) Request timed out.
2021-09-03 22:51:53.989 - warn: modbus.2 (679) Poll error count: 1 code: {"err":"timeout","timeout":5000}
2021-09-03 22:51:53.997 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.info.connection:{"val":false,"ack":true,"ts":1630702313995,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702313995}
2021-09-03 22:51:54.990 - info: modbus.2 (679) Disconnected from slave
2021-09-03 22:51:54.995 - debug: modbus.2 (679) Clearing timeout of the current request.
2021-09-03 22:51:54.995 - debug: modbus.2 (679) Cleaning up request fifo.
2021-09-03 22:51:55.000 - silly: modbus.2 (679) States user redis pmessage modbus.2.*/modbus.2.info.connection:{"val":false,"ack":true,"ts":1630702314997,"q":0,"from":"system.adapter.modbus.2","user":"system.user.admin","lc":1630702313995}

[peterfido]

@captainchaos666
Meine Erfahrungen sind, dass die Timings nicht zu eng gewählt sein dürfen. Man schickt eine Anfrage an ein Gerät und dieses braucht seine Zeit, um die Antwort zu verpacken und auf den Weg zu schicken.

Für Modbus nutze ich Node Red. Der Modbus Adapter wollte bei mir nicht so, wie ich es mir gewünscht habe.

[captainchaos666]

@peterfido sagte in Modbus RTU mehrer Teilnehmer:

Für Modbus nutze ich Node Red. Der Modbus Adapter wollte bei mir nicht so, wie ich es mir gewünscht habe.

Kannst du mir grob dein Programmcode schicken wie es bei dir funktioniert hat. Habe keine Ahnung wie es über Node Red funktionieren soll

Gruß Alex

[Glasfaser]

@captainchaos666 sagte in Modbus RTU mehrer Teilnehmer:

über Modbus RTU zwei Geräte auszulesen. ...
Habe für jedes Gerät eine Instanz angelegt. Wenn ich diese nacheinander starte dann laufen diese, sprich die Daten werden zyklisch gepollt.
Wenn ich beide in eine Instanz packe dann kann ich eine gewisse Zeit Daten pollen.

Wie hast du deine Einstellungen dazu , weil im Log fragt er nur eine ID ab ?

Jeder Modbusteilnehmer bekommt eine eigene ID am Gerät selber fest zugewiesen.

Hier ein Beispiel , habe zwei Smartmeter Modbus Teilehmer .

.

_address	deviceId	name	description	unit	type	len	factor	offset	formula	role	room	poll	wp	cw	isScale
2999	1	Strom L1		A	floatbe	2	1			value		true	false	false	false
3001	1	Strom L2		A	floatbe	2	1			value		true	false	false	false
3003	1	Strom L3		A	floatbe	2	1			value		true	false	false	false
3027	1	Spannung L1N		V	floatbe	2	1	0		value		true	false	false	false
3029	1	Spannung L2N		V	floatbe	2	1	0		value		true	false	false	false
3031	1	Spannung L3N		V	floatbe	2	1	0		value		true	false	false	false
3053	1	Power L1		W	floatbe	2	1000	0		value		true	false	false	false
3055	1	Power L2		W	floatbe	2	1000	0		value		true	false	false	false
3057	1	Power L3		W	floatbe	2	1000	0		value		true	false	false	false
3059	1	Total Active Power		W	floatbe	2	1000	0		value		true	false	false	false
3203	1	Gesamt-Wirkenergie-Import-Wechselrichter	Wechselrichter	kWh	uint64be	4	0,001	0		value		true	false	false	false
3207	1	Gesamt-Wirkenergie-Export-Produktion	Wechselrichter	kWh	uint64be	4	0,001	0		value		true	false	false	false
2999	2	Strom L1		A	floatbe	2	1			value		true	false	false	false
3001	2	Strom L2		A	floatbe	2	1			value		true	false	false	false
3003	2	Strom L3		A	floatbe	2	1			value		true	false	false	false
3027	2	Spannung L1N		V	floatbe	2	1	0		value		true	false	false	false
3029	2	Spannung L2N		V	floatbe	2	1	0		value		true	false	false	false
3031	2	Spannung L3N		V	floatbe	2	1	0		value		true	false	false	false
3053	2	Power L1		W	floatbe	2	1000	0		value		true	false	false	false
3055	2	Power L2		W	floatbe	2	1000	0		value		true	false	false	false
3057	2	Power L3		W	floatbe	2	1000	0		value		true	false	false	false
3059	2	Total Active Power		W	floatbe	2	1000	0		value		true	false	false	false
3203	2	Gesamt-Wirkenergie-Import	Gesamt Import	kWh	uint64be	4	0,001	0		value		true	false	false	false
3207	2	Gesamt-Wirkenergie-Export	Gesamt Export	kWh	uint64be	4	0,001	0		value		true	false	false	false

Bei Allgemein habe ich alle Standart Einstellungen so gelassen .

[captainchaos666]

@glasfaser

Weiter unten im Log wird das zweite Gerät abgefragt. Habe zwei Geräte am start, ID 1 und ID 5

In der Zeile 23 bekomme ich den Wert -571 von der ID 1 zurück (1.13009_Sungrow_SmartMeter_P)
In der Zeile 29 bekomme ich den Wert 68,1 von der ID 5 zurück (5.1021_Ewa_Temp)

in Klammer kommt erst die ID dann das Register

Gruß Alex

[Glasfaser]

@captainchaos666

Wie hast du deine Allgemein Einstellungen eingestellt ?
habe bei Datenabfrageintervall 10000.

[Glasfaser]

@captainchaos666 sagte in Modbus RTU mehrer Teilnehmer:

2021-09-03 22:51:35.850 - debug: modbus.2 (679) Initialize Objects for holdingRegs: [{"_address":"1021","name":"Ewa_Temp","description":"Elwa_Temp","unit":"","type":"uint16be","len":1,"factor":"0.1","offset":0,"formula":"","role":"level","room":"","poll":true,"wp":"","cw":"","isScale":"","address":"1021","deviceId":5}]

2021-09-03 22:51:35.850 - debug: modbus.2 (679) Add undefined : {"type":"state","common":{"name":"Elwa_Temp","role":"level","type":"number","read":true,"write":true,"def":0,"unit":""},"native":{"regType":"holdingRegs","address":"1021","deviceId":5,"type":"uint16be","len":1,"offset":0,"factor":"0.1","poll":true}}

Ich glaube , damit hat er Probleme.....

[captainchaos666]

@glasfaser sagte in Modbus RTU mehrer Teilnehmer:

2021-09-03 22:51:35.850 - debug: modbus.2 (679) Add undefined : {"type":"state","common":{"name":"Elwa_Temp","role":"level","type":"number","read":true,"write":true,"def":0,"unit":""},"native":{"regType":"holdingRegs","address":"1021","deviceId":5,"type":"uint16be","len":1,"offset":0,"factor":"0.1","poll":true}}

Wenn du mir jetzt noch erklärst was du darus lesen kannst? Ist für mich irgendwie nichts sagend die Meldung.

@peterfido sagte in Modbus RTU mehrer Teilnehmer:

@captainchaos666
Meine Erfahrungen sind, dass die Timings nicht zu eng gewählt sein dürfen. Man schickt eine Anfrage an ein Gerät und dieses braucht seine Zeit, um die Antwort zu verpacken und auf den Weg zu schicken.

Für Modbus nutze ich Node Red. Der Modbus Adapter wollte bei mir nicht so, wie ich es mir gewünscht habe.

Das war der entscheindene Tip. Habe als erstes den Datenabfrageintervall auf 10000ms hoch gestellt, hat nichts gebracht. Danach habe ich die Wartezeit von 50ms auf 75ms hoch gestellt. Seither läuft es auch mit einem Datenabfrageintervall von 1000ms.

Die Anlage hat sich jetzt wegen fehlender Sonne abgeschaltet. Muss ich morgen mal beobachten ob es weiterhin funktioniert. Habe jetzt mal noch ein paar Register mehr eingefügt

Möchte mich bei euch nochmals für eure hilfe bedanken

Gruß Alex