[GELÖST]ModBus Stromzähler mal geht es, mal icht

[Stefan Falt]

Hallo,
ich habe einen Eastron SDM72D-M Stromzähler, der über ModBus angeschlossen ist. Er funzte ca. eine Woche gut, jetzt macht er plötzlich Macken und erzeugt CRC fehler im ioBroker. Woran liegt es? Was kann ich tun?

Danke.

modbus.2
	2023-10-03 17:04:24.974	info	List of port: [{"path":"/dev/ttyS0"},{"path":"/dev/ttyS1"},{"path":"/dev/ttyS2"},{"path":"/dev/ttyS3"},{"path":"/dev/ttyS4"},{"path":"/dev/ttyS5"},{"path":"/dev/ttyS6"},{"path":"/dev/ttyS7"},{"path":"/dev/ttyUSB0"},{"path":"/dev/ttyUSB1"}]
modbus.2
	2023-10-03 17:04:24.972	info	Check /dev/ttyUSB1 : true
modbus.2
	2023-10-03 17:04:24.971	info	Check /dev/ttyUSB0 : true
modbus.2
	2023-10-03 17:04:24.971	info	Check /dev/ttyS7 : true
modbus.2
	2023-10-03 17:04:24.970	info	Check /dev/ttyS6 : true
modbus.2
	2023-10-03 17:04:24.970	info	Check /dev/ttyS5 : true
modbus.2
	2023-10-03 17:04:24.969	info	Check /dev/ttyS4 : true
modbus.2
	2023-10-03 17:04:24.968	info	Check /dev/ttyS3 : true
modbus.2
	2023-10-03 17:04:24.967	info	Check /dev/ttyS2 : true
modbus.2
	2023-10-03 17:04:24.965	info	Check /dev/ttyS1 : true
modbus.2
	2023-10-03 17:04:24.964	info	Check /dev/ttyS0 : true
modbus.2
	2023-10-03 17:04:24.958	info	Verify [{"path":"/dev/ttyS0"},{"path":"/dev/ttyS1"},{"path":"/dev/ttyS2"},{"path":"/dev/ttyS3"},{"path":"/dev/ttyS4"},{"path":"/dev/ttyS5"},{"path":"/dev/ttyS6"},{"path":"/dev/ttyS7"},{"path":"/dev/ttyUSB0","manufacturer":"1a86","pnpId":"usb-1a86_USB2.0-Ser_-if00-port0","vendorId":"1a86","productId":"7523"},{"path":"/dev/ttyUSB1","manufacturer":"Silicon Labs","serialNumber":"0039","pnpId":"usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0039-if00-port0","vendorId":"10c4","productId":"ea60"}]
modbus.2
	2023-10-03 17:04:04.333	info	Disconnected from slave
modbus.2
	2023-10-03 17:04:03.331	warn	Poll error count: 1 code: {"err":"timeout","timeout":5000}
modbus.2
	2023-10-03 17:04:03.329	error	Request timed out.
modbus.2
	2023-10-03 17:04:03.328	warn	Error: undefined
modbus.2
	2023-10-03 17:04:00.351	error	unknown function code: 0x1a, 0x0
modbus.2
	2023-10-03 17:04:00.346	error	unknown function code: 0x0, 0x1b
modbus.2
	2023-10-03 17:04:00.340	error	unknown function code: 0x71, 0x1
modbus.2
	2023-10-03 17:04:00.335	error	unknown function code: 0x0, 0x72
modbus.2
	2023-10-03 17:04:00.330	error	Error response: 11
modbus.2
	2023-10-03 17:04:00.324	error	unknown function code: 0x7, 0x0
modbus.2
	2023-10-03 17:04:00.319	error	unknown function code: 0x63, 0xe4
modbus.2
	2023-10-03 17:04:00.314	error	unknown function code: 0x1d, 0xe
modbus.2
	2023-10-03 17:04:00.309	error	unknown function code: 0x2d, 0x3
modbus.2
	2023-10-03 17:04:00.304	error	Error response: 58
modbus.2
	2023-10-03 17:04:00.299	error	Wrong CRC for frame: 1,1,98,30,82,255,86,0,0,0,0,0,1,119,7,1,0,2,8,2,255,1,1,98,30,82,255,86,0,0,0,0,0,1,119,7,1,0,16,7,0,255,1,1,98,27,82,255,85,0,0,5,68,1,119,7,129,129,199,130,5,255,1,1,1,1,131,2,31,159,162,217,223,181,44,74,175,83,50,209,201,147,197,223,88,79,34,155,17,68,39,21,162,124,250,172,142,117,5,143,240,245,234
modbus.2
	2023-10-03 17:04:00.191	error	Wrong CRC for frame: 72,1,119,7,1,0,0,0,9,255,1,1,1,1,11,9,1,69,77,72,0,0,101,125,30,1,119,7,1,0,1,8,0,255,100,1,1,130,1,98,30,82,255,86,0,5,245,188,150,1,119,7,1,0,2,8,0,255,100,1,1,130,1,98,30,82,255,86,0,21,5,221,64,1,119,7,1,0,1,8,1,255,1,1,98,30,82,255,86,0,5,245,188,150,1,119,7,1,0,2,8,1,255,1,1,98,30,82,255,86,0,21,5,221,64,1,119,7,1,0,1,8,2,255
modbus.2
	2023-10-03 17:04:00.063	error	Wrong CRC for frame: 9,1,69,77,72,0,0,101,125,30,1,1,99,12,216,0,118,7,0,30,0,13,166,14,98,0,98,0,114,99,7,1,119,1,11,9,1,69,77,72,0,0,101,125,30,7,1,0,98,10,255,255,114,98,1,101,10,10,179,118,122,119,7,129,129,199,130,3,255,1,1,1,1,4
modbus.2
	2023-10-03 17:03:59.983	error	unknown function code: 0xa, 0x8c
modbus.2
	2023-10-03 17:03:59.978	error	Wrong CRC for frame: 118,1,1,7,0,30
modbus.2
	2023-10-03 17:03:59.972	error	unknown function code: 0x72, 0x63
modbus.2
	2023-10-03 17:03:59.966	error	unknown function code: 0xd, 0x62
modbus.2
	2023-10-03 17:03:59.961	error	unknown function code: 0x0, 0x1e
modbus.2
	2023-10-03 17:03:59.956	error	Wrong CRC for frame: 27,1,1,1,1,118
modbus.2
	2023-10-03 17:03:59.949	error	Error response: 1b

[Homoran]

@stefan-falt sagte in ModBus Stromzähler mal geht es, mal icht:

Woran liegt es?

• Verkabelung?
• billiger Konverter?
• Störeinstrahlung?
• Neustart mit USB Neuzuordnung?
• Zähler kaputt
• Konverter kaputt?
• Bus zu voll?
• ???

[Stefan Falt]

@homoran Es war doch tatsächlich ein Defekter 485 Adaper. Zum Glück habe ich zwei bestellt. Interessant: Der Wandler IC ist völlig ohne Aufdruck .... also besser Finger weg. Dieser da:
https://www.ebay.de/itm/255283310832

Kann jemand einen hochwertigen USB-485 Adapter Empfehlen? Ich hätte jetzt diesen genommen, mit FTDI Chip und hoffentlich ausreichend TVS Dioden ...

https://www.ebay.de/itm/265433740245
Nachtrag: Es wurde dieser https://www.amazon.de/gp/product/B0B87D9LNC

[Homoran]

@stefan-falt sagte in ModBus Stromzähler mal geht es, mal icht:

Es wurde diese

ja, den, oder den großen Bruder
https://www.welectron.com/Waveshare-15817-USB-TO-RS232-485-TTL

der kann noch mehr

[Stefan Falt]

@homoran Nachtrag:
Mit dem neuen 485 Adapter von Waveshare klappt es tadellos.
Danke für den Support.