Kernel Header\source Issue with MOXA NPort Real TTY Driver on WAGO PFC200

Hardware and Linux
1

We’re implementing a solution requiring a virtual COM port (Real TTY mode) using the MOXA NPort Real TTY Driver on WAGO PFC200 controllers.

However, during the driver installation (following MOXA’s documentation), we encountered an error:

ERROR:
*ERROR
Unable to locate matching source for kernel 5.10.21-rt34w03.01.02.
Please install proper kernel-header/source “first”

System Details:
Kernel version: 5.10.21-rt34w03.01.02
Processor Architecture: ARMv7 (armv7l)
Host Name: PFC200V3-4988AC
Firmware: E!COCKPIT – FW22

The MOXA NPort driver is compatible with ARM architecture and our kernel version.
I also found a firmware update for WAGO PFC200 on their GitHub - WAGO/pfc-firmware-sdk-G2: Firmware SDK for PFC200-G2 family

Questions:
Can WAGO provide the appropriate kernel headers/source for this kernel version?
Does the firmware update from the WAGO GitHub repository include the necessary kernel headers?
If yes, can you share detailed steps for updating the firmware? We’ve faced PTX-related errors during our attempts.

Goal:
We aim to connect the WAGO controller to a MOXA NPort 5200A Series device, create a virtual COM port in Real TTY mode, and pass this port into a Docker container (Node-RED) for further communication. This setup will be replicated across 10–15 controllers.

Link to the MOXA device: NPort 5200A Series - General Device Servers | MOXA

Thank you in advance for your assistance!

2

Installing custom drivers on the PFC linux is actually quite involved, especially kernel drivers. WAGO FW is cross-compiled using the SDK that you referenced. This would require you to import the driver source code into the Ubuntu VM with the SDK, and cross compile the driver for the PFC into a .pkg file. Once complete, then this could be installed with the PFC WBM install page. However, the cross compiling process can be challenging due to the library dependancies. Unless you are quite knowledgeable in this area, it might not be possible in practice.