Getting Started

Before opening CODESYS, flash the board with the CODESYS runtime using the neXo Firmware Flasher — the runtime must already be running on the board.

1. Install the device description

CODESYS identifies the board through its device description file (.devdesc.xml).

1. Download CODESYS_Control_Pico2.devdesc.xml — [link da inserire].
2. In CODESYS: Tools → Device Repository → Install…
3. Select the downloaded .devdesc.xml file and confirm.

The device then appears in CODESYS Control devices as:

Name	CODESYS Control Pico2
Vendor	nexo S.r.l.
Device ID	167e 2008

2. Create a project and add the device

1. File → New Project… → Standard project.
2. As the device, pick CODESYS Control Pico2.
3. Under the device node, the Peripherals module (I/O, analog inputs, LED, temperature) is added automatically — see IO Mapping.

3. Connect and log in

1. Connect the board via USB-C (or Ethernet, if wired to your network — da confermare interfaccia usata per il gateway CODESYS).
2. In the device editor’s Communication Settings, scan for the device and select it.
3. Login and download your application.

Runtime limits

The CODESYS runtime on Raspberry Pi Pico 2 has the following fixed limits — plan your application accordingly:

Setting	Value
Max IEC tasks	10 (max 10 interval, 10 event, 1 free-wheeling)
Max task priority	31
Default cycle time	100 ms
Code + constants (flash)	1 MB
Retain memory	1000 bytes
Online change	Not supported — full download only
Max applications	1 (Application)
Breakpoints / force / write variables	Supported

Next: IO Mapping and ST Examples.