How does the `adstool` work?

Beckhoff / ADS

Beckhoff protocol to communicate with TwinCAT devices.

MIT License

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How does the `adstool` work? #159

Closed FF-AntiK closed 2 years ago

FF-AntiK commented 2 years ago

I have two devices. One Development PC running Linux and an IPC running TCBSD. On SSH-Login the IPC shows:

TcOsSys.dll:    TcOsSys_Rel31_4024_20211129.2
TwinCAT Build:  3.1.4024.22
AMS Net Id: 5.65.251.130.1.1
TC/BSD:     12.2.12.0,2

When I try to run adstool 5.65.251.130.1.1 --log-level=0 state on my Dev-PC I get the following result:

2022-02-17T15:41:53+0100 Error: AdsException message: Ads operation failed with error code 6.

What am I missing?

pbruenn commented 2 years ago

By default, only ads-s (ADS secure) is enabled in the TC/BSD firewall. But the AdsLib and the adstool support only classic ADS. So either forward the classic ADS port (48898) over something secure like ssh. Or enable ADS in your TC/BSD firewall by adding pass in quick proto tcp to port 48898 to /etc/pf.conf and reload it, e.g. with doas pfctl -f /etc/pf.conf

FF-AntiK commented 2 years ago

Thanks for your reply! I've stopped pf now completely but I still get the same error message. Do I have to setup a route first? How would I do this?

pbruenn commented 2 years ago

Yes, you need a route. From your Linux machine: adstool <tcbsd_ip> addroute --addr=<linux_ip> --netid=<linux_netid> --password=<tcbsd_password>

For linux_netid you can choose anything which is different from tcbsds netid. for subsequent call you should then use adstool 5.65.251.130.1.1 --localams=<linux_netid> state

FF-AntiK commented 2 years ago

I've added the route which seems to work (at least there was no error code). But reading the state still returns with Error Code 6. But now it's not printing the error, even with --log-level=0

pbruenn commented 2 years ago

Assuming:

your Linux has the ip 10.0.200.1
your TC/BSD has the ip 10.0.200.10
your TC/BSD password is the incredible "1"
you choose 1.2.3.4.5.6 as your Linux AmsNetId
you TC/BSD allows TCP connections to port 48898

TcSystemService is running on TC/BSD:

Administrator@PC-8CD98F:~ $ doas service TcSystemService status
TcSystemService is running as pid 789.

Then this should work:

adstool 10.0.200.10 addroute --netid=1.2.3.4.5.6 --addr=10.0.200.1 --password=1
adstool 5.65.251.130.1.1 --gw=10.0.200.10 --localams=1.2.3.4.5.6 state

FF-AntiK commented 2 years ago

--gw did the trick! Thank you very much!