Hi Jukka,

and I should mention, that EIP support is probably the least tested driver 
regarding features.
This is due to a lack of hardware for testing. This might change in the (near) 
future, but right now
all I had, when developing the driver, was a simple 2 channel digital IO 
component.

However if you want, I’d be happy to help you improve the driver.

Chris



From: Ben Hutcheson <ben.hut...@gmail.com>
Date: Thursday, 5. January 2023 at 18:08
To: dev@plc4x.apache.org <dev@plc4x.apache.org>
Subject: Re: schneider plc & eip
Hi Jukka,

Your best bet is probably to take a look at adding support for smaller
message sizes. The ‘large’ part of the large forward open refers to the
message size (I think for large connections it is around 1500?) a normal
forward open is around 500? Bytes or so.

Ben

On Thu, 5 Jan 2023 at 5:42 pm, Jukka Sirviö <jukka.sir...@mipro.fi> wrote:

> Hello,
> I'm using eip_update branch,
> the plc does provide ethernet/ip, but I'm not able to set up the
> connection correctly.
>
> plc indicates that it does have support for ConnectionManager, but when
> sending Open Connection Manager EIP Package, the tcpdump indicates that
> large forward open is not supported. Any ideas what are my alternatives
> here? Some of the supported attributes (cip object model) for the plc are 1
> (Identity), 2 (MessageRouter), 4 (Assembly), 6 (Connection manager), 244
> (Port), 245 (TCP/IP), 246 (Eth Link).. total of 21 attributes.
>
> 145 46.246813 originator → target CIP CM 146 Connection Manager - Large
> Forward Open (Message Router)
> 146 46.249130 target → originator CIP CM 98 Service not supported:
> Connection Manager - Large Forward Open
>
>
> thanks for help:
> -Jukka
>
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