Weihnachtsangebot 2025! 🎄

[Jack 3]

I am trying to use the modbus-serial library so that I can automate the creation of new instances in iobroker when it detects a new TCP signal. However, for some reason it does not recognize that I have downloaded this module already. I have attached a screenshot for clarification.

I am doing this in the JavaScript adapter.

Any help would be greatly appreciated, thanks in advance.

[Homoran]

@jack-3 sagte in JavaScript adapter wont detect modbus-serial:

that I have downloaded this module already.

how did you do this?

@jack-3 sagte in JavaScript adapter wont detect modbus-serial:

I am doing this in the JavaScript adapter.

and added you the npm package via its instance?

[Jack 3]

@homoran i did so by typing 'npm install modbus-serial' into the terminal in iobroker, im not sure what you mean by add the npm package via its instance.

[Homoran]

@jack-3 sagte in JavaScript adapter wont detect modbus-serial:

i did so by typing 'npm install modbus-serial' into the terminal in iobroker

not ok!
hopefully you did it in the correct directory at least.

@jack-3 sagte in JavaScript adapter wont detect modbus-serial:

what you mean by add the npm package via its instance.

there is a line in the configuration of the javascript instance, where you just have to enter the name of the package(s) followed by <ENTER>
that's all

[Jack 3]

@homoran I did add it to the npm modules in the javascript instance but there is still the error, I think maybe its because I didnt download it to the correct directory , where do I need to download it to?

[Homoran]

@jack-3 sagte in JavaScript adapter wont detect modbus-serial:

where do I need to download it to?

nowhere!
you just have to add it in the config.
save and exit, the instance should restart and load it itself.

[Jack 3]

@homoran Im still getting this error even after adding modbus-serial to the instance, are there perhaps other steps I can take to troubleshoot this?

[Homoran]

@jack-3 sagte in JavaScript adapter wont detect modbus-serial:

are there perhaps other steps I can take to troubleshoot this?

I think so, but I cannot tell which ones.

maybe that @thomas-braun may help to find the issue if something went wrong by your installation method and is blocking the built in method

oooh!
is there a whitespace too much at the end? before the closing '

[fastfoot]

@jack-3 do something with ModbusRTU, the error might only be visually(because of some restriction the sandbox has). Only if yo get additional errors when using the module you can tell the module is not loaded

[Jack 3]

@fastfoot I tried this code which I copied and edited from the modbus serial documentation and I am getting these errors

[fastfoot]

@jack-3 ok, thats a real error. Which version of JS-Adapter do you have? I think there is a bug in the newest Beta not installing modules that were entered in the instance config. Remove these lines, leave the config and enter them again. After leaving the config then have a look to the Log Tab, you schould see the that module(s) are getting installed.

Workaround on the cli:

• cd /opt/iobroker
• npm i modbus-serial
• js-adapter should recognize the module now, though the red underline might still be there

let us know, there should be no need to install module in /opt/iobroker/node_modules/iobroker.javascript instead of /opt/iobroker

[Jack 3]

@fastfoot Thats the thing, I do not have an /opt/iobroker directory, it does not exist is what the terminal tells me

[fastfoot]

@jack-3 what system are you running iobroker, windows? There it schould be C:\iobroker. All Linux Systems use /opt/iobroker. Though not sure where tis is on a Mac

[Jack 3]

@fastfoot I use windows

[Jack 3]

@fastfoot I ran the command again using the directory you said and Im still getting the same errors, I can even see in the node_modules directory that I do have Modbus-serial installed

[fastfoot]

@jack-3 the try cd C:\iobroker and then npm i modbus-serial

[fastfoot]

@fastfoot please log the error instead of the data, works fine here though i have no modbus hardware

[Jack 3]

@fastfoot

2024-07-09 09:07:46.559 - error: modbus.0 (604) Socket Error
2024-07-09 09:07:46.564 - error: modbus.0 (604) Client in error state.
2024-07-09 09:07:46.564 - warn: modbus.0 (604) On error: {"errno":-4039,"code":"ETIMEDOUT","syscall":"connect","address":"131.246.75.233","port":5020}
2024-07-09 09:07:46.592 - error: modbus.1 (12848) Socket Error
2024-07-09 09:07:46.601 - error: modbus.1 (12848) Client in error state.
2024-07-09 09:07:46.601 - warn: modbus.1 (12848) On error: {"errno":-4078,"code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":502}
2024-07-09 09:08:47.615 - error: modbus.1 (12848) Socket Error
2024-07-09 09:08:47.615 - error: modbus.1 (12848) Client in error state.
2024-07-09 09:08:47.615 - warn: modbus.1 (12848) On error: {"errno":-4078,"code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":502}
2024-07-09 09:09:08.775 - error: modbus.0 (604) Socket Error
2024-07-09 09:09:08.775 - error: modbus.0 (604) Client in error state.
2024-07-09 09:09:08.775 - warn: modbus.0 (604) On error: {"errno":-4039,"code":"ETIMEDOUT","syscall":"connect","address":"131.246.75.233","port":5020}
2024-07-09 09:09:12.133 - info: admin.0 (5516) ==> Connected system.user.admin from ::1
2024-07-09 09:09:12.221 - error: host.PCRT49 cannot call visUtils: Not exists
2024-07-09 09:09:18.930 - info: admin.0 (5516) ==> Connected system.user.admin from ::1
2024-07-09 09:09:21.197 - info: javascript.0 (12652) Start JavaScript script.js.Test (Javascript/js)
2024-07-09 09:09:21.206 - error: javascript.0 (12652) script.js.Test compile failed:
at script.js.Test:4

is that what you mean?