SCALANCE XR-500 - Number of copper ports - 22

Sales, Repair, Purchase
6GK5534-3TR00-4AR3

6GK5534-3TR00-4AR3

Inquire product
Code: 6GK5534-3TR00-4AR3
SCALANCE XR522-12; managed layer 3 IE switch, 19" rack; 20x 100/1000 Mbps RJ45 port; 2x 1G/2.5G/5G/10 Gbps RJ45 port 4x 100M/1G SFP port; …
Sales, Repair, Purchase
6GK5534-3TR00-3AR3

6GK5534-3TR00-3AR3

Inquire product
Code: 6GK5534-3TR00-3AR3
SCALANCE XR522-12; managed layer 3 IE switch, 19" rack; 20x 100/1000 Mbps RJ45 port; 2x 1G/2.5G/5G/10 Gbps RJ45 port 4x 100M/1G SFP port; …
Sales, Repair, Purchase
6GK5534-3TR00-2AR3

6GK5534-3TR00-2AR3

Inquire product
Code: 6GK5534-3TR00-2AR3
SCALANCE XR522-12; managed layer 3 IE switch, 19" rack; 20x 100/1000 Mbps RJ45 port; 2x 1G/2.5G/5G/10 Gbps RJ45 port 4x 100M/1G SFP port; …
Which switch for PROFINET networks?

Which switch for PROFINET networks?

Is it advisable to use cheap unmanageable switches for a few crowns or is it worth paying extra and buying manageable switches? Should I save money on buying switches for the production line or should I buy a quality PROFINET switch?