S7-1200 to S7-300 Plc Communication

TAMILARASAN

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Dear Experts,

One of my client using S7-300 Plc In that Cp343 Module also using for scada and hmi connection .

And now wer are going to supply new machine - In that am going to install S7-1200 Plc And Ktp-700 Hmi . So that my plc (s7-1200 ) to Excising PLC (s7-300) to data sharing throw profinet .

S7-300 Plc they are using Simatic Manager ( V5.5 Sp3) programmed previously .

S7-1200 Plc am going to program TIA v13 Software .

So which hardware to choose ?? Like am asking PN/PN Coulper to use connection establishment to those plc . ??

I want to communicate with my plc to S7-1200 to (ktp -700 and One plc s7-314 and scada wincc ).

kindly share some document and program backup . how to make connection .



Plz help this support.

Regards,

Arasan..
 
You don't necessarily need a PN/PN Coupler, the decision to use one should be based on the customer's standard, installation requirements and so on. I would revert back to them on how they want that bit done.

To communicate through Profinet, Siemens as plenty of information about it. I managed to put a S7-400 talking to a 1200 through PUT and GET instructions, although I prefer the Send/Receive instructions. Any search for these or FB13/FB12 should point you in the right direction.
 
I recently done it. I saw the video Garry linked to and it works perfectly for me without making any changes at all in the S7-300 plc. Today I needed to control a bit in another s7-300 from an s7-1200. Using a put block and a one shot I successfully flipped a bit in the s7-300
 
You don't necessarily need a PN/PN Coupler, the decision to use one should be based on the customer's standard, installation requirements and so on. I would revert back to them on how they want that bit done.

To communicate through Profinet, Siemens as plenty of information about it. I managed to put a S7-400 talking to a 1200 through PUT and GET instructions, although I prefer the Send/Receive instructions. Any search for these or FB13/FB12 should point you in the right direction.


Dear cardosocea ,
thank you very much for your great help and support .
Regards,
Arasan
 


Dear Garry,
Thanks for support and help . You linked video i seen fully and got it the information .
And Am using S7-1200 Plc having single ethernet port . in that port i want to configure Profinet for S7-300 plc configuration . in my same s7-1200 plc to connect one hmi and one wincc scada also . it can be possible .??

Please guide me .
Thanks And regards,
Arasan.
 
Dear Garry,
Thanks for support and help . You linked video i seen fully and got it the information .
And Am using S7-1200 Plc having single ethernet port . in that port i want to configure Profinet for S7-300 plc configuration . in my same s7-1200 plc to connect one hmi and one wincc scada also . it can be possible .??

Please guide me .
Thanks And regards,
Arasan.

Yes. A 1200's Ethernet interface supports connections to multiple devices. I don't exactly recall the specs, but I think it's at least 8.

However, if you're not familiar with Ethernet, you'll probably need a switch to be able to connect all the devices.
 
I recently done it. I saw the video Garry linked to and it works perfectly for me without making any changes at all in the S7-300 plc. Today I needed to control a bit in another s7-300 from an s7-1200. Using a put block and a one shot I successfully flipped a bit in the s7-300

One possibly important detail and why I don't like by default to use the PUT/GET instructions is that they'll work even if the other PLC is stopped. This may be acceptable, or may not at all and lead to potential issues.
The SEND/RECV however, need to be processed, so you'll get a fault if the receiving end doesn't process the communication.

This however can easily be overcome by keeping a rolling counter/heartbeat in the communication.
 
Yes. A 1200's Ethernet interface supports connections to multiple devices. I don't exactly recall the specs, but I think it's at least 8.

However, if you're not familiar with Ethernet, you'll probably need a switch to be able to connect all the devices.

Dear mk,
Thank you very much for your kind information . yes can able to use Ethernet switch for connecting hmi and scada as well as s7-300 plc for data read and write .

Regards,
Arasan..
 
One possibly important detail and why I don't like by default to use the PUT/GET instructions is that they'll work even if the other PLC is stopped. This may be acceptable, or may not at all and lead to potential issues.
The SEND/RECV however, need to be processed, so you'll get a fault if the receiving end doesn't process the communication.

This however can easily be overcome by keeping a rolling counter/heartbeat in the communication.


Dear cardosocea,
Ya. In S7-1200 plc we have to use for PUT/GET instruction for read and write data's . So in same as S7-300 plc also through profinet .
First i want to connect establishment to do . both the plc .
As you mention You have backup for this communication program . Kindly share here . its useful for us ..

Thanks and Regards,
Arasan..
 
Dear cardosocea,
Ya. In S7-1200 plc we have to use for PUT/GET instruction for read and write data's . So in same as S7-300 plc also through profinet .
First i want to connect establishment to do . both the plc .
As you mention You have backup for this communication program . Kindly share here . its useful for us ..

Thanks and Regards,
Arasan..

Dear Experts,
Thank you very much for your great support.
I have successfully communicated S7-1200 plc to s7-300 plc as i told you know before same Order number of my plc .
Data sharing of both the plc done and tested .

Thanks again ,
Regards,
Arasan..
 

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