Modbus TCP/IP Master to Profinet IO Device (slave)

goghie

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Jan 2008
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Belgrade
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778
Hi,

I need to read from my PLC which is Modbus TCP/IP Master one Siemens S7-1200 PLC which is configured as Profinet IO Device.
I know what are addresses I need to read in Siemens PLC and I do have GSD file.
As it is not allowed to change program in Siemens PLC I need to install some gateway. Can anybody recommend me some gateway capable to do that. I've tried with Anybus, but they do not have that possibility.

Thanks in advance.
 
Why it won't suit:
https://www.anybus.com/products/gat...-gateway-modbus-tcp-server-profinet-io-device


Maybe adding another 1200 CPU, then make there unspecied
GET/PUT coms to 1200CPU (if data is on DB blocks) and Modbus TCP server (slave) for your modbus master.




p.s Anybus is profinet slave, and t should be master now, so it won't suit?
It would be easy if you could program original 1200 for TCP server and add some move blocks to code
 
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Unfortunately it is prohibited to change anything on original Siemens PLC. Anybus can act only as Profinet IO Device (slave) and Siemens PLC is already IO Device so I need to be IO Controller in order to read data. Currently I'm closest to adding one S7-1200 in order to bridge them.
 
If you are using Melsec and have the EJ72 Ethernet module, the Softing Echocollect gateway will help you, as it supports S7 client which means you can read all process data in S7-1200, including IO, without touching the S7 program. The Echocollect is also Melsec client and Modbus TCP client. You can configure collect tables in the Echocollect that read data either cyclically or triggered by some events like data changes. I have a lot of expeywith these two plcs and the Echocollect, and I can help you set it up
 
Unfortunately, where I live Redlion doesn't have distributor/subsidiary.
BTW, what is the price (cca)?

Thanks

You can buy it right on the Red Lion site:

Cheapest - protocol converter only, $624 (USD)
https://www.redlion.net/product/dsple-protocol-converter

Mid-range - protocol converter, data logger, web server HMI $1481 (USD)
https://www.redlion.net/product/protocol-converter-data-logger-virtual-hmi-vga


You may be able to contact Red Lion and get better pricing if you are a Systems Integrator.
 
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