Sample22: Automation Device Driver (ADD): Access DPRAM
This article describes how to implement a TwinCAT 3 C++ driver which acts as a TwinCAT Automation Device Driver (ADD) accessing the DPRAM.
Download
Here you can access the source code for this sample:
https://github.com/Beckhoff/TC1300_Samples/tree/main/S22-ADD
Notice | |
Configuration details Read the configurations details below prior to the activation. |
- 1. Open the zip file that it contains in TwinCAT 3 by clicking on Open Project ….
- 2. Select your target system.
- 3. Build the sample on your local machine (e.g. Build->Build Solution).
- 4. Note the actions listed on this page under Configuration.
- 5. Activate the configuration by clicking
.
- The sample is ready for operation.
Description
This sample is intended to switch the Link Detect bit of the network adapter (i.e. of an CX5010) cyclically on and off.
The C++ module is connected to the NOV/DP-RAM device via the PciDeviceAdi interface pointer of the C++ module.
Configuration
To make the sample work, the hardware addresses must be configured to match your own hardware.
Check the PCI configuration:
To check whether the communication with NOV/DPRAM is set up correctly, use the DPRAM (Online) view:
