Integrating a USB stick

This section shows you how you can integrate a USB stick in TwinCAT/BSD. Check the USB configuration beforehand. To do this, use the command dmesg to check whether the USB stick appears in the system messages:

umass0: <Generic Mass Storage, class 0/0, rev 2.00/1.01, addr 2> on usbus0
umass0: SCSI over Bulk-Only; quirks = 0x4101
umass0:1:0: Attached to scbus1
da0 at umass-sim0 bus 0 scbus1 target 0 lun 0
da0: <Generic Flash Disk 8.07> Removable Direct Access SPC-2 SCSI device
da0: Serial Number 2EFBC899
da0: 40.000MB/s transfers
da0: 3900MB (7987200 512 byte sectors)
da0: quirks=0x2<NO_6_BYTE>

The details of the make, device file (da0), speed and capacity may vary depending on the device.

Requirements:

The USB stick is formatted with FAT32.
Connect the USB stick to the Industrial PC.

Proceed as follows:

1. Enter the command gpart show to search for a FAT partition on the USB stick. The USB stick in this example has a FAT32 partition and a size of 3.8 GB. See entry: 1 fat32 (3.8G)

Administrator@CX-3B151A$ gpart show
=>     40  7728256  ada0  GPT  (3.7G)
       40   409600     1  efi  (200M)
   409640     2008        - free - (1.0M)
   411648  7315456     2  freebsd-zfs (3.5G)
  7727104     1192        - free - (596K)

=>     63  7987137  da0   MBR (3.8G)
       63      737        - free - (369K)
      800  7986400    1   fat32    (3.8G)
Administrator@CX-3B151A$

2. Enter the command ls /dev/da0* to determine the name of the FAT32 partition.
da0s1 or da0p1.

ls /dev/da0s1
/dev/da0 /dev/da0s1

3. Enter the command doas mkdir /mnt/usb to create the directory /mnt/usb.

4. Enter the command doas mount -t msdosfs /dev/da0s1 /mnt/usb in order to mount the USB flash drive under /mnt/usb.

5. Use the command cd /mnt/usb to navigate to the mount point of the USB flash drive.

6. Use the command ls to display all the folders in the directory.

You have successfully integrated a USB stick in TwinCAT/BSD. The settings are not permanently saved. Following a restart the USB stick must be integrated again.

USB devices can also be integrated automatically. This function was disabled ex works in order to increase the safety of TwinCAT/BSD. Further information on the automount service can be found at: https://www.freebsd.org/doc/handbook/usb-disks.html