https://github.com/LarsJK/ObjectiveLibModbus

Objective-C wrapper for the libmodbus library (http://libmodbus.org/)
https://github.com/LarsJK/ObjectiveLibModbus

Last synced: 18 days ago
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Objective-C wrapper for the libmodbus library (http://libmodbus.org/)

• Host: GitHub
• URL: https://github.com/LarsJK/ObjectiveLibModbus
• Owner: LarsJK
• Archived: true
• Created: 2012-04-28T10:55:20.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2022-11-22T10:57:59.000Z (almost 2 years ago)
• Last Synced: 2024-04-10T05:28:10.563Z (7 months ago)
• Language: Objective-C
• Size: 154 KB
• Stars: 37
• Watchers: 4
• Forks: 28
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
# NOTE!

This project has been abandoned.

I started work on a swift wrapper for libmodbus ([example](https://github.com/LarsJK/libmodbus-swift-example), [library](https://github.com/LarsJK/libmodbus-swift), [system-module](https://github.com/LarsJK/Clibmodbus)), and there is a new Swift fork [ktsakaguchi/SwiftLibModbus](https://github.com/ktsakaguchi/SwiftLibModbus). I recommend using that instead!

# ObjectiveLibModbus

This is an Objective-C wrapper class for the [*libmodbus library*](http://libmodbus.org). The wrapper is free to use for anyone (GNU Lesser Public License).

The wrapper only supports TCP for now. It does not wrap all of the libmodbus functions. I recommend reading the libmodbus documentation if you are missing some features. Chances are libmodbus already supports it! If you modify or extend the code, please contribute back!

## How To Get Started

The easiest way to get this working is to use [*CocoaPods*](http://cocoapods.org/)

If you dont use CocoaPods do this:

- Drag all the .c and .h files from the Vendor/libmodbus folder into you're project.

- Drag ObjectiveLibModbus.h and ObjectiveLibModbus.m into you're project from ObjectiveLibModbus folder.

Now that you're set up, do the following to make modbus calls

- Import ObjectiveLibModbus where you will be using it:

``` objective-c

#import "ObjectiveLibModbus.h"

```

- Now make a new instance of ObjectiveLibModbus and connect:

``` objective-c

//Allocate a new ObjectiveLibModbus instance

objLibModbus = [[ObjectiveLibModbus alloc] initWithTCP:@"192.168.2.10" port:502 device:1];

[objLibModbus connect:^{

    //connected and ready to do modbus calls

} failure:^(NSError *error) {

    //Handle error

    NSLog(@"Error: %@", error.localizedDescription);

}];

```

- Make a modbus call:

``` objective-c

[objLibModbus readRegistersFrom:1000 count:5 success:^(NSArray *array) {

//Do something with the returned data (NSArray of NSNumber)..

NSLog(@"Array: %@", array);

} failure:^(NSError *error) {

//Handle error

NSLog(@"Error: %@", error.localizedDescription);

}];

```

- Disconnect when you are finished with you’re modbus calls:

``` objective-c

[objLibModbus disconnect];

```