Questions tagged [profibus]

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2answers
863 views

Profibus DP RS485 Polarity

I am implementing a device which communicates on Profibus DP. In order to get the communication with my Siemens S700 PLC to work, I have to reverse the order of the 'A' and 'B' differential signal ...
2
votes
0answers
202 views

can i interface profinet protocol to ethernet interface?

i have a profinet device and an Ethernet port which is dedicated for KNX protocol. can i connect my profinet device to this Ethernet port?
13
votes
1answer
3k views

Why is Ethernet not intrinsically safe?

I understand from a training session that ProfiBUS is considered intrinsically safe, while ProfiNET is not. Some googling indicates that ProfiNET can never be intrinsically safe, because Ethernet can ...
0
votes
2answers
591 views

Analog signals in profibus

I've read that in Profibus, both analog and digital signals can be transmitted on the same wire. I'm curious how this happens and wasn't able to find an answer on google. Could someone please explain ...
4
votes
1answer
1k views

Adding Profibus capabilities to a product

We are currently developing a product and now the "idea" has come up to integrate Profibus since it is quite used in that specific area. Now I was wondering if anyone has made such a product. If I ...
2
votes
4answers
13k views

AVR or Arduino Profibus interface project?

Is there an open source solution to interface any profibus slave or master chips? EDIT1: These are the latest finds for a Profibus slave AVR solution: AVR GCC with up to 187.5Kbps profibus slave in ...