Hi,
I have a customer with a S7300 from around 2013 which they link to approx 25 inverters, 3 DP to DP converters and 5 IM153 remote I/O units all on a Profibus network. They are now looking to upgrade initially the inverter comms then next year the rest to Profinet. This initial push on the inverters is due to the exisiting Profibus cards for the inverters becoming obsolete. The site uses a CP343 unit to connect to a SCADA server. I am thinking I can use this unit as a Profinet connection to the inverters? It has 2 ports, one of which is currently un used. Anyone used a CP343 unit to do this before? I'm looking to connect directly from the CP343 to a single inverter initially whilst I sort out the comms and get it all up and running, then down the line connect the CP343 to an unmanaged switch and use that to connect to the inverters and the other I/O units in the system. The inverters Profinet cards have 2 ports so work as a switch to allow an in/out so I can connect all the inverters in a daisy chain.
Any advice on doing this would be very gratefully received, I've used profinet on the S7 1500's and S7 1200's before but not on an older S7 300.
I have a customer with a S7300 from around 2013 which they link to approx 25 inverters, 3 DP to DP converters and 5 IM153 remote I/O units all on a Profibus network. They are now looking to upgrade initially the inverter comms then next year the rest to Profinet. This initial push on the inverters is due to the exisiting Profibus cards for the inverters becoming obsolete. The site uses a CP343 unit to connect to a SCADA server. I am thinking I can use this unit as a Profinet connection to the inverters? It has 2 ports, one of which is currently un used. Anyone used a CP343 unit to do this before? I'm looking to connect directly from the CP343 to a single inverter initially whilst I sort out the comms and get it all up and running, then down the line connect the CP343 to an unmanaged switch and use that to connect to the inverters and the other I/O units in the system. The inverters Profinet cards have 2 ports so work as a switch to allow an in/out so I can connect all the inverters in a daisy chain.
Any advice on doing this would be very gratefully received, I've used profinet on the S7 1500's and S7 1200's before but not on an older S7 300.