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Old January 28th, 2023, 05:51 AM   #1
HamzaAhmed
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How can i connect Siemens PLC with modbus protocol?
Dear guys,

I have a software that sends data to PLC using modbus.

I want to connect my software with siemens plc, how can i do that?
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Old January 28th, 2023, 06:20 AM   #2
parky
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RTU, TCP ASCII ? there are function blocks for some i.e. MB_Client MB_Server
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Old January 28th, 2023, 06:22 AM   #3
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Quote:
Originally Posted by parky View Post
RTU, TCP ASCII ? there are function blocks for some i.e. MB_Client MB_Server
TCP

can you explain?
Do i need to buy a module or it's built in?
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Old January 28th, 2023, 06:25 AM   #4
parky
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You have not said which model, here is a document that explains it for the 1500
https://cache.industry.siemens.com/d...s7-1200_en.pdf
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Old January 28th, 2023, 06:35 AM   #5
HamzaAhmed
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Quote:
Originally Posted by parky View Post
You have not said which model, here is a document that explains it for the 1500
https://cache.industry.siemens.com/d...s7-1200_en.pdf
I don't know what is the model, every customer has different model from the another

I want to know the process in general, is it possible? and do i have to buy additional module or they are all the same?
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Old January 28th, 2023, 06:45 AM   #6
L D[AR2,P#0.0]
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Have you heard of Google?


https://support.industry.siemens.com...dti=0&lc=en-GB
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S7-300 to 1500 conversions done - email (minus the spam) to spams7conversions@hotmail.com
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Old January 28th, 2023, 06:49 AM   #7
parky
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Yep there are loads of manuals like this one
http://adasim.com.tr/dosyalar/dokuma...n-US_en-US.pdf
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Old January 28th, 2023, 06:53 AM   #8
HamzaAhmed
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Quote:
Originally Posted by L D[AR2,P#0.0] View Post
Yes i tried to figure it out! but it is complicated!

There are too many model and too many software, Siemes a little compilcated. Wincc, runtime, tia portal, simatic, basic, professional versions and too many names.
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Old January 28th, 2023, 06:56 AM   #9
HamzaAhmed
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I think i was needed this:
https://mall.industry.siemens.com/ma...uctinformation

i just needed to know which plc's could be connected with modbus without any hardware
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Old January 28th, 2023, 07:04 AM   #10
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Quote:
Originally Posted by parky View Post
You have not said which model, here is a document that explains it for the 1500
https://cache.industry.siemens.com/d...s7-1200_en.pdf
ac-64-17-3e-fe-a7
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Old January 28th, 2023, 07:46 AM   #11
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Quote:
Originally Posted by HamzaAhmed View Post
ac-64-17-3e-fe-a7
That is a MAC address, more or less equivalent to a serial number of a particular individual PLC.

What was asked for was the model number, which usually starts with 6E e.g. something like this (source: ebay.com):
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Old January 28th, 2023, 07:51 AM   #12
HamzaAhmed
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Quote:
Originally Posted by drbitboy View Post
that is a mac address, more or less equivalent to a serial number of a particular individual plc.

What was asked for was the model number, which usually starts with 6e e.g. Something like this (source: Ebay.com):
et 200s
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Old January 30th, 2023, 05:41 AM   #13
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Old January 30th, 2023, 07:53 AM   #14
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Do you mean you have an ET200SP mounted S7-1510 or 1512, or is this just an ET200 remote IO with a separate PLC?

If it's the first one, yes this should allow you to communicate via Modbus TCP over the onboard ethernet port. You can do this with all S7-1200 and S7-1500 CPU's as far as I know.
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Old February 1st, 2023, 06:33 AM   #15
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Quote:
Originally Posted by Puddle View Post
Do you mean you have an ET200SP mounted S7-1510 or 1512, or is this just an ET200 remote IO with a separate PLC?

If it's the first one, yes this should allow you to communicate via Modbus TCP over the onboard ethernet port. You can do this with all S7-1200 and S7-1500 CPU's as far as I know.
This is the module, I can't uninstall it to see the module number in the other side
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