New Community Ranking System
Our Community ranking system has recently been updated. You may notice changes in user rankings and receive system messages or notifications. If you have questions about how the new ranking works, please refer to the announcement post for more details (click here).
MODBUS TCP on optic fiber with M340
Modicon PAC Forum
A forum for topics related to the scope of Modicon PAC offers and ecosystem along the whole lifecycle: Modicon M580 and 340, EcoStruxure Control Expert, EcoStruxure Process Expert (Unity Pro) and more.
Search in
Improve your search experience:
Exact phrase→Use quotes " "(e.g., "error 404")
Wildcard→Use * for partial words(e.g., build*, *tion)
AND / OR→Combine keywords(e.g., login AND error, login OR sign‑in)
Keep it short→Use 2–3 relevant words, not full sentences
Filters→Narrow results by section(Knowledge Base, Users, Products)
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send InviteCancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Link copied. Please paste this link to share this article on your social media post.
Posted: 2021-09-2008:15 AM. Last Modified: 2021-09-2009:50 AM
MODBUS TCP on optic fiber with M340
Hello,
I'd like to ask for a technical confirmation on using MODBUS TCP in a M340 + Fiber Converter Card (BMXNRP0200C) or Switch (ADAM 6521) + Fiber Optic patch cords and cable topology to communicate with a SCADA system.
The main objective is to provide a fiber optic connection point inside a control panel because it is located in a area prone to electrical interference. The protocol to be used would be MODBUS TCP. We have two simple topologies in mind but we are not sure if they are feasible. So i'm asking for a little support about it.
Considering the following simplified topologies, am I able to use MODBUS TCP to communicate from the M340 to the SCADA workstation with no problem? I'm not sure if the protocol allows this kind of change on the physical medium like if it was pure Ethernet.