CODESYS Forge - CODESYS Forge / Talk / Engineering 🇬🇧: Change Ethernet settings from IEC-code

e.kislov - 2018-12-18

Hi. In FAQ there is nice manual how to change Modbus TCP Slave network settings from IEC-code:
https://faq.codesys.com/display/CDSFAQ/ ... IP+Address

Is this same way to change Ethernet adapter settings? (IP, mask, gateway)
I mean, settings for component IoDrvEthernet.

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dFx - 2018-12-18

In this exemple you should find how to get it (may be the same lib to set it): l viewtopic.php?f=23&t=6247&p=13230#p13503 l

this post states that it should be implemented yet : l viewtopic.php?t=7577#p17180 l

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e.kislov - 2018-12-18

Thanks for intention to help, but...

First link it's how to get client IP, not PLC IP. Besides, I know how to get PLC IP, I need to set it.
Second link it's about Ethernet/IP, but I need info how to set settings for common Ethernet adapter (IoDrvEthernet).

In more detail: I see properties IoDrvEthernet.IPAddress and IoDrvEthernet.IPAddressConfigured, but I don't know is it possible to use it for my task and which one I should used (if first answer yes). I also can't test it right now.

I would be to happy hear some comments from Edwin or Marcel, if they find time in this last pre-holiday days.

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Hi,
sure, you need to enable it in you config file:
example:
/etc/CODESYSControl_User.cfg

[SysSocket]
Adapter.0.Name="eth1"
Adapter.0.EnableSetIpAndMask=1

then in the application:
You could ( for testing purpose) add the ethernet connector and enable the change..
Sure later you do this by iec code.

        a: INT;
   AdapterInfo : SOCK_ADAPTER_INFORMATION;
   hAdapter: RTS_IEC_HANDLE;
   rResult : RTS_IEC_RESULT;
   udiStructSize : UDINT;
   ERR_OK: UDINT;
   wszAdapter : WSTRING := "br1";
   IP: INADDR;
   Mask: INADDR;
   bSet: BOOL;

a:=a+1;
// add the following section in "/etc/CODESYSControl_User.cfg"
//[SysSocket]
//Adapter.0.Name="br1"
//Adapter.0.EnableSetIpAndMask=1
(* Test von SysSockGetFirstAdapterInfo/SysSockGetNextAdapterInfo *)
udiStructSize := SIZEOF(AdapterInfo);
hAdapter := SysSockGetFirstAdapterInfo(ADR(AdapterInfo), ADR(udiStructSize), ADR(rResult));
WHILE rResult = ERR_OK DO
   hAdapter := SysSockGetNextAdapterInfo(hAdapter, ADR(AdapterInfo), ADR(udiStructSize), ADR(rResult));
END_WHILE
(* Test von SysSockSetIpAddressAndNetMask *)
IF bSet = TRUE THEN
   bSet := FALSE;
   IP.ulAddr := 16#01010140;
   Mask.ulAddr := 16#0000FFFF;
   
   rResult := SysSockSetIpAddressAndNetMask(wszAdapter, IP, Mask);
END_IF

BR
Edwin

IMG: ChangeIpSettings.png

👍

e.kislov - 2018-12-20

Thank you, Edwin, and wish a nice holidays. Will try it.
Also vote for CDS-63965 as more simple way.

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alext - 2019-11-25

It is important to know that the Ethernet adapter must be configured for static IP addressing.

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Change Ethernet settings from IEC-code