Control PLC Siemens S7-1200 from ESP8266 using Modbus TCP Communication

[@victormx8360]

Excellent tutorial !!! Thanks !!! You help is great !!!

[@YaserAliHusen]

Thank you
My pleasure😇

[@zhepty12]

happy too see this video..

[@YaserAliHusen]

Thank you

[@deepakkumawat1364]

What is the latency. How much time does it take for a TCP packet to go to the plc

[@YaserAliHusen]

Sorry, I didn't measure the latency

[@yuluo735]

Hello ,Sir .If it possible to set esp8266 as AP model symultaneously , then use the Scada directly to esp8266 for testing?

[@YaserAliHusen]

Hello,
Hmm...I don't know, I haven't try it

[@yossefbenaroosh4932]

Thank you so much for the guide, I've been looking for one for a long time
but
it does not work for me.....
The arduino fails to establish communication

[@YaserAliHusen]

Do you use ESP8266?
For checking the connection
You can ping them from your laptop.
If they are detected, you connect ESP to PLC.
Ensure you have bridge Wifi and Ethernet

[@yossefbenaroosh4932]

In the Knesset file 502 in the port number both at the entrance and at the exit this was the fault

[@Trungkienelectronic]

Can I change the Coil address Q0.x to M0.x?

[@YaserAliHusen]

Yes you can, just try it

[@NaserBitcoin-jg4xp]

I have a esp32 and s7 1200 and a wireless modem how can i connect them together thanks

[@YaserAliHusen]

You can follow the video, ESP connect with Wifi, and S7-1200 connect with ethernet.
Wifi and ethernet connection must in one network, you can create bridge between

[@barajr1349]

Nice video, but i have a question. Can it be the other way around? like arduino can also read holding registers from plc...

[@YaserAliHusen]

Yes, you can use ethernet shield for communication.

[@barajr1349]

@@YaserAliHusen Can you explain it? Especially in the PLC section, because I am confused in that section. Or maybe you can give me a reference source where arduino reads data from plc, thx

[@YaserAliHusen]

@@barajr1349, For PLC still same, you just activate modbus TCP server in PLC.
How to configure PLC as modbus TCP server you can find the video on my channel

[@barajr1349]

@@YaserAliHusen So, in the arduino program we just need to add mb.readHreg ???

[@YaserAliHusen]

@@barajr1349, yes correct.
You can find out how to use it in internet, or watch my videos related this matter

[@franz03033]

can i do it with esp32 ?

[@franz03033]

i think it doesnt have a diffrence...

[@jordanklissman1768]

how did you define an ip address for the slave?

[@YaserAliHusen]

Configure the IP address of PLC using TIA Portal.
Make sure the IP same with network configuration

[@jordanklissman1768]

@@YaserAliHusen so the ip address of plc is the same with the ip address of my laptop?

[@YaserAliHusen]

@@jordanklissman1768, different IP, So you have 3 different IP address
Laptop, PLC and ESP.
For ESP maybe it will generate by DHCP, but you should create bridge

[@jordanklissman1768]

​@@YaserAliHusenDid you fill in the IP address of the client in the TIA portal in the CONNECT section in the datablock?

[@YaserAliHusen]

@@jordanklissman1768, No I dont.
You can watch my video about configuration modbus in PLC: ua-cam.com/video/YuRjIp0cipA/v-deo.html

[@TheKillerAxe]

Can you explain how to create the bridge in more detail?

[@YaserAliHusen]

You can see the tutorial about bridge between Wifi and ethernet:
www.wikihow.com/Bridge-an-Internet-Connection

[@jordanklissman1768]

can i use esp32 instead of esp8266?

[@YaserAliHusen]

I think you can use ESP32 with same library

[@jordanklissman1768]

@@YaserAliHusen i tried but it doesn't connected. My ip address for the server is 192.168.0.1 and the client is 192.168.0.2, is that correct?

[@YaserAliHusen]

@@jordanklissman1768, yes it should be correct. You can test by ping command from a computer to both of them

[@ufuksipor1219]

hi can it be done with ethernet shield

[@YaserAliHusen]

Yes,
You can watch another video which is using ethernet shield in ESP8266

[@emmanuelpeter065]

CAn you please upload the TIA BAckup also

[@YaserAliHusen]

OK, Done
Sorry I missed the TIA files on zip file

[@saurabhdawre3571]

Hello sir I need your help regarding modbus protocol and nodemcu...So I can I reach you ?....Please can you provide me your email address.

[@YaserAliHusen]

you can reach me by email at [e-mail]