https://github.com/otti/espadslib

Simple Beckhoff ADS communication for ESP
https://github.com/otti/espadslib

ads arduino beckhoff esp esp32 library twincat

Last synced: about 1 month ago
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Simple Beckhoff ADS communication for ESP

• Host: GitHub
• URL: https://github.com/otti/espadslib
• Owner: otti
• Created: 2022-09-15T14:03:05.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2024-01-21T14:55:48.000Z (10 months ago)
• Last Synced: 2024-01-21T16:32:22.576Z (10 months ago)
• Topics: ads, arduino, beckhoff, esp, esp32, library, twincat
• Language: C
• Homepage:
• Size: 231 KB
• Stars: 3
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# Simple ESP library for Beckhoff ADS

## Features

* Base functions

  * Ads Read

  * Ads Write

  * Ads ReadWrite

* Convenience functions which are based on the functions above

  * Ads WritePlcVarByName

  * Ads ReadPlcVarByName

  * Ads ReadCoe (with and without complete access)

  * Ads WriteCoe (with and without complete access)

## How to install

Download this repository as zip file and import it to the Arduino libraries.  

(Sketch -> Include Library -> Add .ZIP Library)

## Usage

* Set WiFi SSID and password in the example .ino file

* Set the SrcAmsAddr to the IP address of your ESP followed by `1.1`.  

* In the TwinCAT "Add Route Dialog" of the target machine you have to add the IP of this ESP.

Make sure, that you have set the "Remote Route" to "None"

  

### Writing CoE Values

Set the DestAmsAddr and the port in the code to the AmsAddr of the slave you want to access.

  

### Writing PLC variables

Set the DestAmsAddr in the code to the AmsAddr of the target. This usually ends with `.1.1`

  

Set the port to the port of your PLC. The first PLC usually has port 851 on TwinCAT3 and 801 on TwinCAT2.

The port is also available as define. (`AMSPORT_R0_PLC_TC3`)

## Limitations

To save some memory, the lib can read and write a maximum ammount auf 64 bytes. 

This value can be increased by overwriting the `#define ADS_MAX_DATA_SIZE` in ads.h

## Current status/To Do

* The Lib is tested insufficiently

* Should work with ESP8266, but not tested

* The ADS Read, Write and ReadWrite function are mostly identical. With some affort this three functions can share the same code.

## Debugging

* For some debug outputs on the serial console set `#define ADS_DEBUG_PRINT_ENABLE = 1`

* DebugPrintHex() can be used to print a hex dump in a format like a hex editor