Hello!

I am experiencing some problems when trying to change IP-address, subnet mask and default gateway using Codesys standard method "UpdateConfiguredIpSettings". The IP and netmask is updated when the code is executed, but the gateway cannot be changed. I have attached a picture of the running code. And a gif showing displaying the problem.

Any ideas on what I can try? Am I missing a configuration parameter in the .cfg file or is there any other Linux background setting I need to change?

• I am using codesys 3.16.3 together with the 4.0.0.0 runtime on a raspberry Pi CM3 based PLC. Network config is done in /etc/network/interfaces.d/*.

• The options "Adjust operating system settings" is checked under the Ethernet device.

• I have the following configuration in the CODESYSControl_User.cfg file:
  [SysCom]
  Linux.Devicefile=/dev/ttyUSB

  [CmpBlkDrvCom]
  ;Com.0.Name=MyCom
  ;Com.0.Baudrate=115200
  ;Com.0.Port=3
  ;Com.0.EnableAutoAddressing=1

  [SysProcess]
  Command=AllowAll

  [CmpApp]
  Bootproject.RetainMismatch.Init=1
  Application.1=Application

  [CmpRasPi]
  Architecture=armv7l

  [SysSocket]
  Adapter.0.Name="br_extmodbus"
  Adapter.0.EnableSetIpAndMask=1

  [CmpSocketCanDrv]
  ScriptPath=/opt/codesys/scripts/
  ScriptName=rts_set_baud.sh

BR,
Simon

I have this exact same issue, I ended up adding in SysSockSetDefaultGateway("eth0",Gateway) after the UpdateConfiguredIPSettings to get around it

Thanks @jcarter! I will try this aswell.