Domoticz

Open source Home Automation System
https://forum.domoticz.com/

Python plugin: Modbus RTU / ASCII / TCP/IP

https://forum.domoticz.com/viewtopic.php?t=21297

Page 3 of 21

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Saturday 20 January 2018 22:59
by Domoticx
@papoo

Here is a "plain" python script using TCP, can you test it on your setup, it should print out some (debug)data, just to see if the connection is ok :geek:

Alter the parameters when needed.

*edit updated the script to print out data values

Code: Select all

#!/usr/bin/env python
from pymodbus.client.sync import ModbusTcpClient

# configure the client logging
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

client = ModbusTcpClient('192.168.1.21', port=502)
# OR is a unit address (with TCP) also needed if there are more devices on one address?
# client = ModbusTcpClient('192.168.1.21', port=502, unit=1)
data = client.read_input_registers(1009, 2) # FUNCTION 04 - Read register 1009, length=2
print (data)
print (data.registers[0])
print (data.registers[1])
Install modbus for python(2)

Code: Select all

sudo pip install -U pymodbus
use:

Code: Select all

sudo python test.py

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Sunday 21 January 2018 13:42
by McMelloW
Domoticx wrote: ↑Saturday 20 January 2018 22:59
Here is a "plain" python script using TCP, can you test it on your setup, it should print out some (debug)data, just to see if the connection is ok :geek:

Alter the parameters when needed.

Code: Select all

#!/usr/bin/env python
from pymodbus.client.sync import ModbusTcpClient

# configure the client logging
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

client = ModbusTcpClient('192.168.1.21', port=502)
// OR is a unit address (with TCP) also needed if there are more devices on one address?
// client = ModbusTcpClient('192.168.1.21', port=502, unit=1)
data = client.read_input_registers(1009, 1) # FUNCTION 04 - Read register 1009, length=1
print (data)
Thanks for this script. Coming week I will test it when my SolarEdge is reconfigured for LAN/TCP over port 502. I will keep you informed on the results

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Sunday 21 January 2018 20:47
by Domoticx
Double

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Sunday 21 January 2018 22:08
by papoo

Code: Select all

DEBUG:pymodbus.transaction:Running transaction 1
DEBUG:pymodbus.transaction:0x0 0x1 0x0 0x0 0x0 0x5 0x0 0x4 0x2 0x0 0x1
DEBUG:pymodbus.factory:Factory Response[4]
DEBUG:pymodbus.transaction:adding transaction 1
DEBUG:pymodbus.transaction:getting transaction 1
ReadRegisterResponse (1)

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Sunday 21 January 2018 22:24
by papoo
if i modify your script like this :

Code: Select all

data = client.read_input_registers(1009, 2)  

print (data.registers[0])
print (data.registers[1])
this is the result

Code: Select all

DEBUG:pymodbus.transaction:Running transaction 1
DEBUG:pymodbus.transaction:0x0 0x1 0x0 0x0 0x0 0x7 0x0 0x4 0x4 0x0 0x0 0x5b 0xa0
DEBUG:pymodbus.factory:Factory Response[4]
DEBUG:pymodbus.transaction:adding transaction 1
DEBUG:pymodbus.transaction:getting transaction 1
0
23456
my meter displays 236,56m3

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Sunday 21 January 2018 23:47
by Domoticx
@papoo,

Great!, so it works! :ugeek: welcome to (py)modbus 8-)

Yes, printing the data out was the next step, i just want to be sure the code works with RegisterResponse...

Have you also used unit=1?

Ps. Can you post your whole working code here?, so i can see if the plugin needs to be updated somehow....because i can't see the problem...the domoticz pluginscript works the same way....

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Monday 22 January 2018 21:18
by papoo
unit=2 and result with data.registers[1]

Code: Select all

#!/usr/bin/env python
from pymodbus.client.sync import ModbusTcpClient

# configure the client logging
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

client = ModbusTcpClient('192.168.1.21', port=502)
# OR is a unit address (with TCP) also needed if there are more devices on one address?
# client = ModbusTcpClient('192.168.1.21', port=502, unit=1)

data = client.read_input_registers(1009, 2) # FUNCTION 04 - Read register 1009, length=1

print (data.registers[0])
print (data.registers[1])
# print (data.registers[2])
# print (data.registers[3])

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 0:14
by Domoticx
@papoo

unit=2??

did you use? :roll:

Code: Select all

client = ModbusTcpClient('192.168.1.21', port=502, unit=2)?
The 2 in

Code: Select all

client.read_input_registers(1009, 2)
is read 2 registers from offset 1009...

can you try this?:

add on top with imports:

Code: Select all

from __future__ import division
Then use:

Code: Select all

data = client.read_input_registers(1010, 1) #Start @ register 1010, read 1 register
print round(data.registers[0]/100, 3)
should output what you want right?

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 0:53
by Domoticx
I've just released READ v1.0.5 (please restart domoticz after plugin update)

In this version i've added a passtrough option (no conversion, like a "string") with divide options (see screen @ bottom) and some decimal fixes!


Tested succesfully! :geek:

Ps. Can you try setup in domoticz:
- ip and port
- start register address: 1010
- read: 1
- Passtrough /100

Let me know if it worked! (of not....post LOG)
domoticz modbus rs485 passtrough.jpg
domoticz modbus rs485 passtrough.jpg (122 KiB) Viewed 3405 times

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 11:12
by Domoticx
I've just released READ v1.0.6 (please restart domoticz after plugin update)

New features:
- Length of registers to read has been removed, this is now done automatic, based on datatype!
- Added divide option, so it can be used for all datatypes.

Enjoy!

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 20:22
by papoo
Domoticx wrote: ↑Wednesday 24 January 2018 0:14 @papoo

unit=2??
yes
Domoticx wrote: ↑Wednesday 24 January 2018 0:14 did you use? :roll:

Code: Select all

client = ModbusTcpClient('192.168.1.21', port=502, unit=2)?
The 2 in

Code: Select all

client.read_input_registers(1009, 2)
is read 2 registers from offset 1009...
yes
Domoticx wrote: ↑Wednesday 24 January 2018 0:14 can you try this?:

add on top with imports:

Code: Select all

from __future__ import division
Then use:

Code: Select all

data = client.read_input_registers(1010, 1) #Start @ register 1010, read 1 register
print round(data.registers[0]/100, 3)
should output what you want right?
yes

Code: Select all

DEBUG:pymodbus.transaction:Running transaction 1
DEBUG:pymodbus.transaction:send: 0x0 0x1 0x0 0x0 0x0 0x6 0x0 0x4 0x3 0xf2 0x0 0x1
DEBUG:pymodbus.transaction:recv: 0x0 0x1 0x0 0x0 0x0 0x5 0x0 0x4 0x2 0x5b 0xf0
DEBUG:pymodbus.transaction:0x0 0x1 0x0 0x0 0x0 0x5 0x0 0x4 0x2 0x5b 0xf0
DEBUG:pymodbus.factory:Factory Response[4]
DEBUG:pymodbus.transaction:adding transaction 1
DEBUG:pymodbus.transaction:getting transaction 1
235.36
The v1.0.6 don't work's for me, domoticz crash
2018-01-24 20_15_57-Domoticz - Firefox Developer Edition.jpg
2018-01-24 20_15_57-Domoticz - Firefox Developer Edition.jpg (58.65 KiB) Viewed 3373 times
2018-01-24 20:12:33.523 Incoming connection from: 127.0.0.1
2018-01-24 20:15:31.687 (compteur_edv) Started.
2018-01-24 20:15:32.242 (compteur_edv) Entering work loop.
2018-01-24 20:15:32.244 (compteur_edv) Initialized version 1.0.6, author 'S. Ebeltjes / domoticx.nl'
2018-01-24 20:15:32.298 (compteur_edv) Debug log level set to: 'true'.
2018-01-24 20:15:32.298 (compteur_edv) 'Password':'1010'
2018-01-24 20:15:32.299 (compteur_edv) 'HardwareID':'13'
2018-01-24 20:15:32.299 (compteur_edv) 'HomeFolder':'/home/pi/domoticz/plugins/modbus-read/'
2018-01-24 20:15:32.299 (compteur_edv) 'Version':'1.0.6'
2018-01-24 20:15:32.299 (compteur_edv) 'DomoticzHash':'8c2cc0ba'
2018-01-24 20:15:32.299 (compteur_edv) 'Mode2':'9600'
2018-01-24 20:15:32.299 (compteur_edv) 'Mode1':'tcp'
2018-01-24 20:15:32.299 (compteur_edv) 'Mode6':'pass'
2018-01-24 20:15:32.299 (compteur_edv) 'Username':'4'
2018-01-24 20:15:32.299 (compteur_edv) 'Address':'192.168.1.21'
2018-01-24 20:15:32.299 (compteur_edv) 'Name':'compteur_edv'
2018-01-24 20:15:32.299 (compteur_edv) 'Mode4':'debug'
2018-01-24 20:15:32.299 (compteur_edv) 'Mode5':'div100'
2018-01-24 20:15:32.299 (compteur_edv) 'DomoticzVersion':'3.8834'
2018-01-24 20:15:32.299 (compteur_edv) 'Port':'502'
2018-01-24 20:15:32.299 (compteur_edv) 'Mode3':'S1B8PN'
2018-01-24 20:15:32.299 (compteur_edv) 'Key':'Modbus'
2018-01-24 20:15:32.299 (compteur_edv) 'SerialPort':'/dev/serial0'
2018-01-24 20:15:32.300 (compteur_edv) 'Author':'S. Ebeltjes / domoticx.nl'
2018-01-24 20:15:32.300 (compteur_edv) 'DomoticzBuildTime':'2018-01-22 13:19:13'
2018-01-24 20:15:32.300 (compteur_edv) Device count: 1
2018-01-24 20:15:32.300 (compteur_edv) Device: 1 - ID: 173, Name: 'compteur_edv - ModbusDEV-READ', nValue: 0, sValue: '0'
2018-01-24 20:15:32.300 (compteur_edv) Device ID: '173'
2018-01-24 20:15:32.300 (compteur_edv) Device Name: 'compteur_edv - ModbusDEV-READ'
2018-01-24 20:15:32.300 (compteur_edv) Device nValue: 0
2018-01-24 20:15:32.300 (compteur_edv) Device sValue: '0'
2018-01-24 20:15:32.300 (compteur_edv) Device LastLevel: 0
2018-01-24 20:15:32.300 (compteur_edv) Modbus RS485 RTU/ASCII/TCP - Universal READ loaded.
2018-01-24 20:16:38.229 Domoticz V3.8834 (c)2012-2018 GizMoCuz
2018-01-24 20:16:38.229 Build Hash: 8c2cc0ba, Date: 2018-01-22 13:19:13
2018-01-24 20:16:38.230 Startup Path: /home/pi/domoticz/
2018-01-24 20:16:38.290 Sunrise: 08:25:00 SunSet: 17:49:00
2018-01-24 20:16:38.290 Day length: 09:24:00 Sun at south: 13:05:00
2018-01-24 20:16:38.290 Civil twilight start: 07:53:00 Civil twilight end: 18:21:00
2018-01-24 20:16:38.290 Nautical twilight start: 07:17:00 Nautical twilight end: 18:57:00
2018-01-24 20:16:38.290 Astronomical twilight start: 06:41:00 Astronomical twilight end: 19:33:00

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 20:37
by Domoticx
@papoo

To clearify for TCP....in the example code, did you use?

1)

Code: Select all

client = ModbusTcpClient('192.168.1.21', port=502)?
or did you use?

2)

Code: Select all

client = ModbusTcpClient('192.168.1.21', port=502, unit=2)?

------------

Ps. It keeps crashing?, it does not crash @ my side, please remove all domoticz hardware regarding this plugin (do not update and alter settings on existing domoticz modbus hardware)

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 20:53
by papoo

Code: Select all

client = ModbusTcpClient('192.168.1.21', port=502)
i remove all domoticz hardware, only modbus
It crash when this log appear

Code: Select all

Modbus RS485 RTU/ASCII/TCP - Universal READ loaded.

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 21:18
by Domoticx
Released v1.0.7

Changes:
- Fixed variable error (used before declaration)


@papoo,
Can you try this one?

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 21:29
by papoo
you don't update version number ;)
y update on my version
same problem
2018-01-24 21:26:36.138 (compteur_edv) Started.
2018-01-24 21:26:38.292 (compteur_edv) Entering work loop.
2018-01-24 21:26:38.294 (compteur_edv) Initialized version 1.0.7, author 'S. Ebeltjes / domoticx.nl'
2018-01-24 21:26:38.349 (compteur_edv) Debug log level set to: 'true'.
2018-01-24 21:26:38.349 (compteur_edv) 'Password':'1010'
2018-01-24 21:26:38.349 (compteur_edv) 'Name':'compteur_edv'
2018-01-24 21:26:38.350 (compteur_edv) 'DomoticzBuildTime':'2018-01-22 13:19:13'
2018-01-24 21:26:38.350 (compteur_edv) 'DomoticzVersion':'3.8834'
2018-01-24 21:26:38.350 (compteur_edv) 'Port':'502'
2018-01-24 21:26:38.350 (compteur_edv) 'Mode1':'tcp'
2018-01-24 21:26:38.350 (compteur_edv) 'DomoticzHash':'8c2cc0ba'
2018-01-24 21:26:38.350 (compteur_edv) 'SerialPort':'/dev/ttyAMA0'
2018-01-24 21:26:38.350 (compteur_edv) 'Author':'S. Ebeltjes / domoticx.nl'
2018-01-24 21:26:38.350 (compteur_edv) 'Username':'4'
2018-01-24 21:26:38.350 (compteur_edv) 'HardwareID':'13'
2018-01-24 21:26:38.350 (compteur_edv) 'Mode4':'debug'
2018-01-24 21:26:38.350 (compteur_edv) 'Address':'192.168.1.21'
2018-01-24 21:26:38.350 (compteur_edv) 'Key':'Modbus'
2018-01-24 21:26:38.350 (compteur_edv) 'Mode5':'div100'
2018-01-24 21:26:38.351 (compteur_edv) 'Version':'1.0.7'
2018-01-24 21:26:38.351 (compteur_edv) 'Mode6':'pass'
2018-01-24 21:26:38.351 (compteur_edv) 'Mode3':'S1B8PN'
2018-01-24 21:26:38.351 (compteur_edv) 'HomeFolder':'/home/pi/domoticz/plugins/modbus-read/'
2018-01-24 21:26:38.351 (compteur_edv) 'Mode2':'9600'
2018-01-24 21:26:38.351 (compteur_edv) Device count: 1
2018-01-24 21:26:38.351 (compteur_edv) Device: 1 - ID: 173, Name: 'compteur_edv - ModbusDEV-READ', nValue: 0, sValue: '0'
2018-01-24 21:26:38.351 (compteur_edv) Device ID: '173'
2018-01-24 21:26:38.351 (compteur_edv) Device Name: 'compteur_edv - ModbusDEV-READ'
2018-01-24 21:26:38.351 (compteur_edv) Device nValue: 0
2018-01-24 21:26:38.351 (compteur_edv) Device sValue: '0'
2018-01-24 21:26:38.351 (compteur_edv) Device LastLevel: 0
2018-01-24 21:26:38.352 (compteur_edv) Modbus RS485 RTU/ASCII/TCP - Universal READ loaded.

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 21:37
by papoo
ma domoticz version bêta 3.8834

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 21:38
by Domoticx
Lol something went wrong when "pushing to origin", the release is now live :oops: :mrgreen:

https://github.com/DomoticX/domoticz-mo ... 2aebe9d488

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 21:39
by Domoticx
papoo wrote: ↑Wednesday 24 January 2018 21:37 ma domoticz version bêta 3.8834
Can you try to make SD card and run v3.8153?

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Wednesday 24 January 2018 22:00
by papoo
same problem with this version
2018-01-24 21:57:18.744 (edv) Entering work loop.
2018-01-24 21:57:18.746 (edv) Initialized version 1.0.7, author 'S. Ebeltjes / domoticx.nl'
2018-01-24 21:57:18.750 (edv) Debug log level set to: 'true'.
2018-01-24 21:57:18.750 (edv) 'Key':'Modbus'
2018-01-24 21:57:18.750 (edv) 'Mode2':'9600'
2018-01-24 21:57:18.751 (edv) 'DomoticzVersion':'3.8834'
2018-01-24 21:57:18.751 (edv) 'DomoticzHash':'8c2cc0ba'
2018-01-24 21:57:18.751 (edv) 'Name':'edv'
2018-01-24 21:57:18.751 (edv) 'Mode3':'S1B8PN'
2018-01-24 21:57:18.751 (edv) 'DomoticzBuildTime':'2018-01-22 13:19:13'
2018-01-24 21:57:18.751 (edv) 'Username':'4'
2018-01-24 21:57:18.751 (edv) 'Mode5':'div100'
2018-01-24 21:57:18.751 (edv) 'Mode4':'debug'
2018-01-24 21:57:18.751 (edv) 'Password':'1010'
2018-01-24 21:57:18.751 (edv) 'Port':'502'
2018-01-24 21:57:18.751 (edv) 'Author':'S. Ebeltjes / domoticx.nl'
2018-01-24 21:57:18.751 (edv) 'SerialPort':'/dev/serial0'
2018-01-24 21:57:18.751 (edv) 'Address':'192.168.1.21'
2018-01-24 21:57:18.751 (edv) 'Version':'1.0.7'
2018-01-24 21:57:18.751 (edv) 'HardwareID':'13'
2018-01-24 21:57:18.751 (edv) 'Mode6':'pass'
2018-01-24 21:57:18.752 (edv) 'Mode1':'tcp'
2018-01-24 21:57:18.752 (edv) 'HomeFolder':'/home/pi/domoticz/plugins/modbus-read/'
2018-01-24 21:57:18.752 (edv) Device count: 1
2018-01-24 21:57:18.752 (edv) Device: 1 - ID: 173, Name: 'compteur_edv - ModbusDEV-READ', nValue: 0, sValue: '0'
2018-01-24 21:57:18.752 (edv) Device ID: '173'
2018-01-24 21:57:18.752 (edv) Device Name: 'compteur_edv - ModbusDEV-READ'
2018-01-24 21:57:18.752 (edv) Device nValue: 0
2018-01-24 21:57:18.752 (edv) Device sValue: '0'
2018-01-24 21:57:18.752 (edv) Device LastLevel: 0
2018-01-24 21:57:18.752 (edv) Modbus RS485 RTU/ASCII/TCP - Universal READ loaded.
for release version of domoticz not today, not enough time

Re: [Released] Python plugin: Modbus RS485 RTU/ASCII/TCP

Posted: Thursday 25 January 2018 15:58
by palmipete
Hello,
first of all, great !!! it looks really nice ... in theory.
in practice, I did not get it working ...
I think I installed all as described (plugin folders, I installed pymodbus in python 3, but I get this in the log:
2018-01-25 15:38:55.416 Domoticz V3.8153 (c)2012-2017 GizMoCuz
2018-01-25 15:38:55.416 Build Hash: 494fff7, Date: 2017-07-30 12:19:41
2018-01-25 15:38:55.417 Startup Path: /home/domoticz/domoticz/
2018-01-25 15:38:56.288 PluginSystem: Started, Python version '3.5.3'.
2018-01-25 15:38:56.299 Active notification Subsystems: gcm, http (2/12)
2018-01-25 15:38:56.337 WebServer(HTTP) started on address: :: with port 8080
2018-01-25 15:38:56.359 WebServer(SSL) started on address: :: with port 443
2018-01-25 15:38:56.361 Proxymanager started.
2018-01-25 15:38:56.362 Starting shared server on: :::6144
2018-01-25 15:38:56.362 TCPServer: shared server started...
2018-01-25 15:38:56.363 RxQueue: queue worker started...
2018-01-25 15:38:58.365 Hardware Monitor: Started
2018-01-25 15:38:58.397 EventSystem: reset all events...
2018-01-25 15:38:58.430 EventSystem: reset all device statuses...
2018-01-25 15:38:58.603 Python EventSystem: Module not found - Trying to initialize.
2018-01-25 15:38:58.603 Python EventSystem: Initalizing event module.
2018-01-25 15:38:58.604 EventSystem: Started
2018-01-25 15:38:58.692 PluginSystem: Entering work loop.
2018-01-25 15:38:59.134 Error: (Modbus) failed to load 'plugin.py', Python Path used was '/home/domoticz/domoticz/plugins/modbus-read/:/usr/lib/python35.zip:/usr/lib/python3.5:/usr/lib/python3.5/plat-arm-linux-gnueabihf:/usr/lib/python3.5/lib-dynload'.
2018-01-25 15:38:59.135 Error: (energy) Module Import failed, exception: 'ImportError'
2018-01-25 15:38:59.135 Error: (energy) Module Import failed: ' Name: six'

Python script without import domoticz shows no errors.
I tried to put comments for the log, but I think the error happens before I can put errors in the log
I also tried to put some prints, but I do not know how to see them ...

I am new in Domoticz (I know and handled modbus and also succeeded on the same machine to talk to the modbus object).

thanks in advance
Peter
I tried to put
All times are UTC+02:00
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