CODESYS - the IEC 61131-3 automation software

Welcome to the official CODESYS Forum by 3S-Smart Software Solutions GmbH | A member of the CODESYS Group
Deutsche Version English version russian version 
It is currently Sat Apr 20, 2019 1:52 pm

All times are UTC+01:00

Post new topic  Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Wed Sep 05, 2018 1:28 pm 

Joined: Tue Oct 04, 2011 10:13 am
Posts: 80
Is the DeltaV Ethernet I/O Card (EIOC) Interface, with Modbus TCP master firmware, able to communicate with CoDeSys Modbus TCP slave?

Has anybody some experience with DeltaV?


Possible issues:

1) The EIOC supports only the Modbus TCP standard protocol;
the RTU via TCP and RTU via UDP are not supported in the EIOC.
Does CoDeSys use the "Modbus TCP standard protocol".
(I could not this information in any documentation.)

2) Modbus function code 8 and sub-function code 00 (echo request).
Does CoDeSys support :code 8"?
(In the documentation, "code 8" was not in the supported code list.)

3) Modbus TCP: Uses MODICON (PLC) based addressing (Modbus absolute addressing is not supported)
Which addressing is used by CoDeSys?
(CoDeSys does -not- specify which protocol is implemented.)

Modbus TCP; Emerson DeltaV Ethernet I/O Card (EIOC) Interface

Last edited by chab on Tue Sep 11, 2018 9:28 am, edited 1 time in total.

PostPosted: Fri Sep 07, 2018 8:05 am 
Site Admin

Joined: Mon Sep 05, 2005 9:42 am
Posts: 3250
but if you have a chance to use any other protocol than modbus, than I would do it.
This pdf state you could use OPCUA , this is an up to date protocol so first choice I would say.
(security etc)
all CODESYS SL products (SL means 'single license') from CODESYS store have an embedded OPCUA Server.


PostPosted: Tue Sep 11, 2018 9:22 am 

Joined: Tue Oct 04, 2011 10:13 am
Posts: 80
Unfortunately the counter part does not support OPCUA.

Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 3 posts ] 

All times are UTC+01:00

Who is online

Users browsing this forum: No registered users and 1 guest

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited