Hi Thompsonvk

I have 1 s7-1200 and 1 s7-300 plc.

I connected and communicated 2 plc and wincc pro. 

I took db503.dbw24 values from S7-300 plc to wincc pro. Its okay.

But my question is that, how i can use this value in s7-1200 plc like normal contact or output.

I must not use s7-300 because of risk that for me.

Could you please inform me documentation or videos etc?

My mail adress: [snip]

I am waiting your reply.

Thanks

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Split from Transfering tag from SCADA to PLC.

Thanks

My s7-300 plc project is simatic manager and I cannot this plc. Now my tia hardware s71200 and pc station(wincc pro). May I add new s7-300 plc in my tia hardware?

Can I use only get function s7-1200?

Could you please give me more details?

Thank you.

now my connection is okay. s7-1200 plc ,s7-300 and wincc communicated.

I took db values s7-300 to wincc scada.

I didnt do transfer scada to s7-1200 plc.

thanks

So you used script of scada? Like that set tag or get tag

Can I use this script?

Can I use script for tranfer data s7-1200?

I looked set tag and get tag.  Do you have experience about them?

 I will explain step by step.

1-my source of data s7-400 plc not s7-300 in simatic manager.

2- I created new tia project

3- I added new s7-1200 plc and wincc pro(pc station)

4-I did it connection only s7-400 plc in wincc side with using ip adress

5-s7-400,s7-1200 and wincc same network and different ip and communicated

6-I created 1 hmi tag, I entered my source plc db value,I selected "s7-400 connection" type in hmi tag.

7-I created io field in scada and I gave db value in io field.

8-I can view value from s7-400 to scada,now is okay for me.

9-Next step for me, how this value tag transfer to s7-1200?

10-I will do some operation in s7-1200 side. For example, my scada value is equal 1, s7-1200 will give 1 digital output.

My problem is 9th and 10th step.

Could you please explain easy way to do it?

Thank you very much

0_Einstein

I am confused but a little less.

Are you wanting to send data from the s7-1200 to the s7-300?  In that case, use the S7 PUT instruction on the s7-1200 to send data to the s7-300.

I am assuming the scada is connected to the s7-1200 within TIA Portal and the S7-300 is in a different project, in classic step 7 Simatic Mgr.

Where is the source of the data, and where is the destination for that data?

You have 3 devices, one is in the title but does not have Set Tag / Get Tag instructions.

(DBn.DBWxyz) S7-300 -----+
                         | PN Subnet #0100
(DBm.DBW0) S7-1200 ------+
                         | PN/IE_1, manually configured for Subnet #0100
             SCADA ------+

Between S7-1200 / S7-300, Use S7 GET on S7-1200 to READ from the S7-300.  Use S7 PUT on S7-1200 to WRITE to the S7-300.  Be VERY  careful using the S7 WRITE.  READ multiple times before attempting to write to make sure you know you are updating the correct DB #, offset, and data size.

For what reason does the SCADA want to write to the s7-300 using Set Tag, and read from the s7-300 using Get Tag?  This is the wrong product conference (forum) for that type of question if that's what you really wanted to do all along.

EngineerMan1

Can I use script for tranfer data s7-1200?

I looked set tag and get tag.  Do you have experience about them?