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Questions tagged [siemens]

Tag for questions about Siemens informatics products such as the programmable logic controller (PLC)

Siemens develops electronic embedded systems, devices and informatics products such as the programmable logic controller (PLC)

177 questions
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PLC S7-1500 SQL-Connection - received data shifted by 1 byte --why?

i´ve been successfully using a S7 1500 PLC in combination with an SQL-Server for quiete some time now. I set everything up like mentioned here: S7SQL-Guide-Stackoverflow Today i tried to add a second parameter to my SQL-Query. So I made something…
nico25
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Nodered-OPC-UA-Siemens S7: why is my payload "0" when writing to my DB

I am using nodered as GUI for my S7-1500 application. They communicate using OPC-UA. I was already successful with sending booleans and Integers to the PLC and back to my nodered-gui. Now I have a special case, which for some reason doesn´t…
nico25
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Siemens S7 - 1500, multiple screens

I am looking for a solution about the use of Siemens S7-1500. My Siemens is connected to 6 "robots" that have to pick some stuff up. I would like to use S7-1500 to display 6 screens with information according to the robot. The information on the 6…
Camille BOUQUET
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SQL-Siemens PLC connection

Actually, I am working on the connection between S7 1500 PLC and SQL server I can send and receive data successfully. I build a table in the SQL server(product ID, product, quantity, product Key). many products can have the same Product Key. I need…
Fares JEMAI
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How to exchange data between kepserverex and React?

I have a connection between kepserverex with tia portal v15 where I have PlC connected, the connection works correctly and I have the service running on my computer on port 102, the variables are registered in the kepserverex to the siemens PLC. I…
Marco Castillo
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Can not write string into S7-1500 with Java

I use plc4j to read/write string from s7-1500. I can read string with statement: builder.addItem("value-4.0", "%DB1.DB4.0:STRING"); which get string of "hello world" in it. But I can not write string into the address with…
angelo
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Setting single bit Siemens ladder

I have a value stored in MW20 and I need to set to most significant bit to 0 without using bit operations but I don't find how I need to do this. I know this: ----> MB20 = D7 / MW20 = D7C5 \ ----> MB21 = C5 So I need to set the…
Seppe Mariën
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Siemens Openness XML files

So Im working on automating the development of PLC code that is expressed in XML, and to do so I have exported FB block and its networks to see what the code looks like so I could get an Idea of the XML tree But there is a tag called…
Andres Rodriguez
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how to make my ladder plc hidden ?I want to make it secret from other people?

if I want to create a ladder diagram on step7.after I want to make it secret from other people?
tarik blal
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HC-05 Module sending data problem (Mater + Slave)

I've been working with a Siemens PLC to send data using RS232. The communication itself is working perfectly, I can monitor it if I connect the PLC to my PC (via a serial comm port). Now, I wanted to make this communication wireless. I found out…
gbernardon
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How to solve, problem to activate "operator control and monitoring" for a symbol in symbol editor?

After right click on a symbol(in "symbol editor" window,in step7 v5.6),and select, "special object properties---> "operator control and monitoring" ,then when i want to check mark the "operator control and monitoring" box,symbol editor window…
M.J Jalali
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Connection between PLC and OPC server

I have three Siemens S1200 PLC devices and one PC Station which is OPC server. PLC 1 ethernet configuration is 172.16.100.100/255.255.255.0, PLC 2 172.16.100,101/255.255.2550, PLC 3 is 172.16.100.102/255.255.255.0 and PC Station…
Josef
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Increasing storage space when converting from Fossil to Git to Git LFS

We are currently tracking Siemens PLC programs (TIA projects) in Fossil repos. Now we have to move all repos to Bitbucket and hence I started testing the conversion from Fossil to Git as Bitbucket only supports Git. One special thing about our…
swenamsee
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$.getJSON correctly executed, but js tags not updated

I'm not an expert on JS and i'd like to have any support. I'm trying to update many tags (1 in code here under) every 1000ms. I'm using this code :