Reading Coil

[Elmatbaisaad]

Hello everyone i m working on a project where i must read coils and registers i succed in reading registers but not in coils .
I m trying this code but its not working to exlain what i want :

• i want to give and addresse and in result i want the value of the address.
  

[aldas]

What does it say? Is there an error?

This is how I test:

1. I'll download modbus server from https://www.modbusdriver.com/diagslave.html
2. start it with ./diagslave -m tcp -p 5022
3. Use this php code to test (file named coils_builder.php)

<?php

require __DIR__ . '/../vendor/autoload.php';

use ModbusTcpClient\Composer\Read\ReadCoilsBuilder;
use ModbusTcpClient\Network\NonBlockingClient;

$fc3 = ReadCoilsBuilder::newReadCoils('tcp://127.0.0.1:5022')
    ->coil(0, "my_coil")
    ->build();

$responseContainer = (new NonBlockingClient(['readTimeoutSec' => 0.2]))->sendRequests($fc3);
var_dump($responseContainer->getData()); // array of assoc. arrays (keyed by address name)
var_dump($responseContainer->getErrors());

4. Execute the script

x@x:~/code/modbus-tcp-client/examples$ php -v
PHP 8.1.2 (cli) (built: Jan 24 2022 10:42:51) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.2, Copyright (c) Zend Technologies
    with Zend OPcache v8.1.2, Copyright (c), by Zend Technologies
    with Xdebug v3.1.2, Copyright (c) 2002-2021, by Derick Rethans

x@x:~/code/modbus-tcp-client/examples$ php coils_builder.php 
/home/x/code/modbus-tcp-client/examples/coils_builder.php:13:
array(1) {
  'my_coil' =>
  bool(false)
}
/home/x/code/modbus-tcp-client/examples/coils_builder.php:14:
array(0) {
}

6. Diagslave output is as:

x@x:~/code$ ./diagslave -m tcp -p 5022
diagslave 3.1 - FieldTalk(tm) Modbus(R) Diagnostic Slave Simulator
Copyright (c) 2002-2018 proconX Pty Ltd
Visit https://www.modbusdriver.com for Modbus libraries and tools.

Protocol configuration: MODBUS/TCP
Slave configuration: address = -1, master activity t/o = 3.00
IP configuration: port = 5022, connection t/o = 60.00

Server started up successfully.
Listening to network (Ctrl-C to stop)
............
validateMasterIpAddr: accepting connection from 127.0.0.1
Slave   0: readCoils from 1, 1 references
....................................................

[Elmatbaisaad]

i got this error

[aldas]

what version of PHP are you using?

[Elmatbaisaad]

I am using php 8.0

[aldas]

in your first example the line require __DIR__ . '/../vendor/autoload.php'; is after use ... lines. maybe if you move require to be before use.

[Elmatbaisaad]

I've tried it but i got the same error is my code working for you ??

[aldas]

I can not test code that is pasted as image.

[Elmatbaisaad]

Here is my code, I really don't know where this come from
CoilRead.txt

[aldas]

which version of this library are you using?

[Elmatbaisaad]

i am using 3.0

[aldas]

Then I really do not know ReadCoilsBuilder is not implementing/extending anything that would require it to implement those 4 methods. I really do not why you are getting this error.

You could try to delete that library folder and reinstall with composer.

[Elmatbaisaad]

i reinstalled the library that's work but i have no value

[Elmatbaisaad]

i have a json file where i put adresses and values for example i put for coils
"adresse":9
value:true // because its a bit
but it returns nothing