Read data from siemens plc

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Read data from siemens plc

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PLC's. the tag C-more shows as C1 will be C1, format “Bit” in the PLC and the tag C-more shows as CW1 will be C1, format “Signed” in the PLC. 9 May 2019 With Cloud Logging you can read data from your Siemens PLC. Data Types Summary Each elementary data type has a defined length. 3 ms to read one PDU (240 bytes) into the internal buffer. View and Download Siemens SIMATIC S7 operating instructions manual online. SFC 15 for  . My main concern is how to properly store large amounts of raw numeric data. For example, if the PLC creates a curve and sends it to the PLC, that data would typically be sent via the acyclic data. Subj. 1 Purpose The purpose of this document is to aid in the configuration of various Programmable Logic Controllers (PLCs) to communicate with In-Sight systems using the EtherNet Industrial Protocol (EIP). Requirements for Working with the Getting Started Manual Introduction Contents of this chapter This guide describes how to configure ABB Drives function blocks for Siemens PLC’s. using System. dbd16 tags Mar 16, 2016 · Linux Libnodave example read data from Siemens S7-300 I used Linux Min 17. ) are of the Bit type, but in the S7 protocol these are of the Byte type (i. Inthisway,noextrawritesaccumulateintheserver's queue. Or, better yet, how about using TCP/IP communication to read block data directly from the PLC. myforum. Example the analog input is voltage with rang 0 – 12V, and we can scale them into variable with rang 0 – 100. 33. Global DBs, where all OBs, FBs and FCs read all saved data or can even write in the DB and local instance DBs, which are assigned a particular FB. , they will transmit and How to Use the TIA Portal to Set a Siemens PLC and the MGate 5103 . Page 115 Data Transfer with PLC-to-PLC Connections S5-95U, SINEC L2 Programming Example Data Transmission PLC-to-PLC Connections Using Standard Function Blocks This section explains the structure of the control programs for two programmable controllers. When data moves from the Siemens PLC to the Rockwell PLC the converter takes data off of Profinet IO and writes it into the PLC using PCCC. Siemens SIMATIC Step 7 Programmer's Handbook This handbook is a collection of programming overviews, notes, helps, cheat sheets and whatever that can help you (and me) program a Siemens PLC. Use reverse2 (for int/words) and reverse4 (for double word/large int/floats) Siemens is working on addressing a vulnerability that can be exploited by a skilled attacker to execute arbitrary code on its SIMATIC S7-1200 programmable logic controller (PLC) by abusing a hardware-based access mode. Such automation systems control process equipment and machinery used in manufacturing. I built a custom client app that uses OPC to read data from multiple PLCs on different machines and store it into a * These addresses are accessed without the W in the PLC by simply changing the data type to a numeric form, e. Registration is completely free! This guide shows how to log Siemens data to a Database in three easy steps. Or, if the PLC needs to read a captured plot from the RMC, that is also best done via the acyclic data. The Siemens TCP/IP Ethernet driver works in conjunction with KEPServerEX to exchange data between OPC clients and Siemens S7-200, S7-300, S7-400, and S7-1200 PLCs using the TCP/IP Ethernet protocol. For these requirements, we recommend the SIMATIC S7-1500 Software Controller. com a Addresses/Tags: The Registers are all stacked side by side in the PLC’s memory. Your hard disk contains up to 8 Kbytes(8192Bytes) space. The maximum length is 2048 registers (8192 bytes) for the RMC75 and S7. I'm developing a software solution that requires storing raw data points originating from many PLCs (programmable logic controller, used to control industrial machines such as conveyor belts and robots) into a SQL Server database. Clear all data bit to 0 and set Bit memory M11. Over Ethernet it offers access to the controllers from the companies Siemens, That's how it's done: PLC Engine is reading the data from a controller or device  10 Jun 2017 This article series introduces the Siemens S7 protocol in depth, the first . The live data view shows you the currently read PLC data blocks live. Net plc driver. It was manufactured and sold by Siemens AG. This should not be limited to Siemens. I have been working with Siemens PLCs for quite some time, mostly developing applications that either communicate with them or observe/simulate their communication. However, all I/O points that Mar 30, 2016 · Please don't get me started on Siemens! The S7 CPU has the MPI (Multi-Point Interface) and Profibus . NET programs, how to read data from PLC, and how to write data to PLC. you can download all files from here: http://plc2k. Drawing;. 2. Therefore it is necessary to recount the LOGO! addresses when entering into S7 addresses. Remote Access for Polling Data Registers from Siemens PLCs, AUG-048. UPDATE: If you want the raspberry pi to be the s7 server go here UPDATE 2: If you want to see communication with S7-200 go here UPDATE 3: Video walkthrough on setup go here I recently borrowed a S7-1200 PLC from work to see if I could get data from it using a Raspberry Pi. Hallo Alex I’m making an app to communicate with S7 PLC, I can with buttons read and write to PLC, but after about 20 read / write communication becomes slow and I only get 0 values back. principles of programmable logic control. My sample programs are all based on MELSEC PLC using TCP/IP communication. Only the symbolic access exists for optimized blocks. Totally integrated Automation (TIA Portal V13), is nothing more or less than the development IDE of Siemens with which we should create all the PLC program. Depending on what PLC brand you are using, you will have some different data types available. 15 Nov 2019 Undocumented Access Feature Exposes Siemens PLCs to Attacks be used to write data to the flash chip through the PLC's firmware update  11 Oct 2013 It's like that when you want to read and write the data table of Siemens PLCs. S7 Trends is a free and easy-to-use software to trace what is going on in Siemens PLC. Jan 30, 2016 · The Siemens S7 Communication - Part 1 General Structure. The parameter values to be used for the write/read command differ depending on the type of external control used, the adapter or the communication protocol. Nov 17, 2019 · The experts have developed a proof-of-concept (PoC) exploit that allows writing data to the flash chip by leveraging the PLC’s firmware update feature. In order to configure the bus it is necessary to set up the PLC and master hardware first. industry. . This allows you to prepare and test the configuration in advance before you go to the plant. Can I read data from Siemens PLC S7-300 over Profibus or MPI or Ethernet? I want to use Industruino IND. Siemens controllers with the built in Siemens Driver Interfaces which support communications over Ethernet to: S7-200 S7-300 S7-400 S7-1200 S7-1500 STEPS Follow the links to the OAS Help articles: Make sure Open Automation Software is installed and the OAS Service … For basic understanding of what is PLC use Google, because basically iam not a PLC Engineer or Electrical Engineer, but I will explain to you about how to connect PLC using . Jul 13, 2011 · Top Ten Siemens S7 Tips and Tricks book THIS can be read by using a personal computer or by using an eBook reader. Know I'm no expert in the Siemens world. (example- PLC db2. You neet to swap the byte order of words and floats before writing them into the PLC. B. To start our programming first we need to create a new project by clicking on the “new” icon on the toolbar to open the “new project” window. The MPI is used mostly to communicate with the programming station. PLC are shown. Each data point has the following PLC to In-Sight Communications Using EIP 1 Introduction 1. Linq;. PRODAVE S7 consists basically of two parts: - driver for Windows 95/98/ME and Windows NT/2000/XP and - high language adaptor A software program from Siemens is helping municipal authorities keep nitrogen oxide and fine dust concentrations under control. once the connection is established, both can send data to the other partner. . Tested with S7-200,S7-300, S7-400, S7-1200, S7-1500. The STEP 7 training courses provide you with in-depth knowledge above and beyond the contents of this Getting Started manual, teaching you how entire automation solutions can be created with STEP 7. This view differs only slightly from the simulator. There are two types of data blocks. The Data part of the S7 PDU varies based on the type (read/write)  It can be also used with S7-compatible PLCs from SAIA. Underscores in time and date are optional; It is not required to specify all time units (for example: T#5h10s is valid) Maximum time value = 9,990 seconds or 2H_46M_30S cache. How to Using TIA Portal to Set Siemens PLC and MGate S5TIME NOTES. Sep 21, 2015 · For make user easier read the analog data, in simatic S7 there are function to scale analog data into parameter. There is much more detail in the manual than can be covered here. Apr 17, 2009 · Hello everybody. Anybus® offers solutions for device manufacturers, machine builders and system integrators with connectivity to and from Siemens equipment and networks. e. Otherwise, the internal connection will overwrite the Profibus data to the specified tag number. Read input buffer data and set the while loop, when the number of bytes of the receive buffer at constant exit the loop and then read data. Read the data from excel to wincc found at plc. A1. EKS Profinet on Siemens S7-300 – reading in EKS Electronic-Keys . I got addresses of these datas but i can not use their addresses because of customer request. Also I don't know if RFC1006 is specifically for siemens plc. All About Industrial Automation 15,601 views Sep 17, 2015 · Excel read data from S7-300 with libnodave, free and simple method to get data from Siemens PLC's. Polling Data Registers from Siemens PLC Series S7-300, S7-400 & S7-1200 (How to) Page 3/23 21 Responses to “Android – exchange data with Siemens PLC” Flemming Astrup Says: June 29, 2013 at 8:26 pm | Reply. Hi everyone and welcome to PLCGurus. Aug 17, 2019 · An industrial IoT underlying architecture framework, focusing on the underlying technical communications and cross-platform, cross-language communication functions, to achieve a variety of mainstream PLC data reading and writing, to achieve modbus of various protocols read and write, and so on, to support the rapid construction of industrial upper computer software, configuration software > values are read & written by the program? Also how a Serial Interface > Module data is read/write by the PLC program? <clip> Analogue module addressing is covered in the manual for this processor, which you can download from the Siemens web site for free. Goals This document shows you how to: • Use Siemens PLC to do Acyclic Read and Write. There is a Siemens PLC in the field which has data I need to accquire. siemens. protocols or measurement data. And when its started how i can write/read data from the plc. automation. In example I should read: D14 FLOA to get PROFIBUS Communication List via Siemens PLC. The Simatic S5 PLC is an automation system based on Programmable Logic Controllers. Start the Simatic software and start a new project. 3. Complex data evaluation The production data has to be available over a long period of time for tracking and tracing and for quality assurance. This product line is considered obsolete, as the manufacturer has since replaced it with their newer Simatic S7 PLC. g. NET! If you're an engineer, technician or technologist involved in industrial automation and control systems, then you've come to the right place. Users should already be familiar with the specific hardware and software configuration Sending data from a Siemens PLC to a Computer. Any drive parameter with a TAG number can be written to or read from. Features: • Configure a control page to operate and monitor variables with a set of projectable control-types: gauge, button, slider, bar graph and output field. 2 indicates whether the read process has been terminated. pdf. Sep 16, 2018 · Data logging in PLC l Data logging S7 1200 PLC l Tia portal l Siemens - Duration: 13:58. We do not wanna use the OPC approach. In this example we are using an S7315-2 CPU and a 2A power supply with a standard rack. Hack and Make: the joy of learning Visitors at Hack and Make experienced, how even beginners can make their ideas a reality. PLC-PC communication with C#: a quick resume about data exchange libraries in Allen Bradley , C# , PLC , PLC Drivers , PLC Resources , Siemens 40 Comments 85,858 Views Let’s say that you want to build your own HMI, because: Data may be read from or written to PLC devices, using simple VBA macros (typically in Excel environment). If you have experience with Siemens then please contribute . sebenarnya dari versi sebelumnya bisa dilakukan tetapi semuanya tidak free, sekarang di plc siemens S7-1200 sudah bisa langsung dilakukan With above configuration, two controllers can exchange data with each other easily, for example: PLC side can get the MPU-6050 data, read distance of HC-SR05 or control RC-SERVO. application of authentication measures, encryption of data, installation of anti-virus programs, etc)  Siemens S7 PLC and FC 300 Profibus 300 Profibus and the Simatic S7-315-2 DP. a Siemens Simatic S7-300 PLC is losing the Siemens S7 300 and STEP 7 PLC program. The Plc was a S7-400 (Siemens)which was connected via a Goodmorning a question I builded a simple monitor of plc. Select read if you want to read data from another PLC, select write if you wish to write data to another PLC. Open SIMATIC Manager. The channel name and device name is what is read in node-red. net HI, If you want to transmit/receive data to or from another equipment you should have a cable (PPI cable, RS232-RS485 PLCGurus. Arduino side can read temperature from PT100/ thermocouples, get status of 24V proximity switches, or turn on / off 220VAC lamps. you should use SFC 14 for reading data and. How to interface SmartLight via IO-Link master in Siemens S7-1200. How to interface RFID via IO-Link master in Siemens S7-1200. DPNRM_DG (Read diagnostic data from a DP slave) instruction . Connection to the PLC can be either MPI/Profibus or ISOTCP Ethernet depending on the available interfaces on the PLC The MPI/Profibus or ISOTCP Ethernet connected PLC will have its registers read by the tags configured in the IO Server of the eWON. Some data areas may not be available, or the data have to be read/written word by word instead of byte by byte. STEP 7 Basic web page (http://www. These can be e. com Aug 09, 2019 · Critical vulnerabilities in the Siemens S7 Simatic programmable logic controller (PLC) have been discovered by cybersecurity researchers at Tel Aviv University and the Technion Institute of Sep 30, 2015 · Data Blocks (DBs) can be used by your program to save data in the CPU. Access to I/O areas with PLC data types . Nov 29, 2016 · Have you ever wanted to read current, torque, or power data from your Siemens variable frequency drive (VFD) without having to change your telegram or communication configuration? Well, you are in the right place! The guide below will walk you through how to acyclic read or write any drive parameter with your Siemens PLC. net Plus is a Siemens communication library. System Topology The KEPserver can read data from unoptimised Data Blocks in TIA portal. Each location has an Address that lets the PLC know what data you’re talking about. Trying to set-up Data Collection from S7 to Excel. How to read and write data from excel VBA to Siemens S7-300 PLC These functions allow to read/modify the date and time of a PLC. ro, control. In a Siemens PLC you have data types in STEP 7 available that are similar to the standard ones in IEC 61131-3. ⑨. ALL PLC CONFIGURING TOOLS: Delete all internal software input connections to the drive parameter that the PLC writes to. Can anyone VB macro skills? http://plc2k. com/mcms/simatic- 326. 1. Feb 04, 2015 · PLC data types and addressing 1. ABB specific ready-made function blocks from the ABB_DRIVES_LIB are used. 6. Imagine a production line in which each PLC saves the data with date/time field inside, it is very important that the date be up to date. I need to read the data of the Mitsubishi FX3GE PLC. NET, so this was definitely a potential option. The Partners can exchange unsolicited data, i. c. In the "channel wizard" choose "siemens TCP/IP Ethernet". SIMATIC Manager is a program which manages subprograms of STEP 7. Acyclic communication Jul 19, 2018 · The idea is to be able to read data out of multiple plc. The driver talks directly to the S7 PLC using a standard PC network interface card, and does not require additional software packages or libraries. 8. Jul 09, 2013 · Dear expertsI want to read some data from excel file to plc tag in s7 300 plc. Ali Abbasi, Tobias Scharnowski and Thorsten Holz of the Ruhr-University Bochum in a MODBUS-RTU communication with PLC SIEMENS SIMATIC S7-1200? PLC Siemens umumnya mengalami kesulitan dalam koneksi modbus, khusunya ke peralatan dengan modbus serial seperti power meter, protection relay dan lainnya. Data logger, MDA-system, or PLC-analyzer - with HSDBASE you can create databases (CSV, MySQL, MSSQL, Access, ORACLE) for your machines - Values in data areas (e. Reading and writing Excel files with PLC Supports all major PLC data types: BOOL  For example, if the PLC creates a curve and sends it to the PLC, that data would typically be sent via the acyclic data. 64. 7 ➤➥In online mode, the process data can be read if an IO-Link device is connected. On the latter, you should talk a lot, that is, as should be used, what are Jan 21, 2015 · For a basic understanding of what PLC is, use Google because basically I am not a PLC Engineer or Electrical Engineer, but I will explain to you how to connect PLC using . com/excel-read-data-from-s7 Jan 02, 2018 · Different models of PLC support various different forms of I/O. Step 1 : install mono-complete sudo apt-get install mono-complete if you want to compile libnodave lib by your self, install c develeop headers sudo apt-get install libc6-dev Step 2: download and… PLC Programming, Read data from PLC, Write Data to PLC, PLC Communication Source Code. Example: PLC 1 and PLC 2 are to exchange data with one another, i. Look at most relevant Read the data from excel to wincc websites out of 114 Thousand at KeywordSpace. Someone can help me?Thank you for Thanks to the integrated simulator, you can also configure our software without a connected PLC. My sample programs are all based on MELSEC PLC using TCP/IP Communication. reading and writing information in the internal PLC memory area (At OMRON, we call this the "I/O Memory"). real16 or db2. Now, we come to the part of Siemens. Sep 19, 2002 · Hello, Paul; It can be done in a PLC, but generally it is felt that to do so would be contrary to the basic premise of PLC control. 02 - VLT is a registered Danfoss trademark Siemens S7 PLC and FC 300 Profibus Configuring the Profibus network The next step is to set up the peripheral input and output data via a PPO type. If How to read S7-300 PLC using C# Can you guide me or provide sample code to connect and read data from PLC. This is done by adding a "new channel" in KEP under "connectivity". Hi everyone, I am trying to read db on siemens s7-1200 PLC. So you read data from a PLC by connecting your system to one of the interfaces supported by your model of PLC and configuring your software to match the settings supported by the devi Communication with Siemens S7 Plc with C# and S7. What are the software used with Siemens ? For S7 200 PLC programming : Microwin; For S7 300 and 400 system : Simantic S7 manager; The SCADA software used by Siemens is Win CC. 3, so you can do the same with other Debian based distribution. One of the main differences between PLCs and other computing systems is that there is no user interrupt (no keyboard, mouse or display) to interrupt the processor functions. com, stackoverflow. But you will also have other data types only used in SIEMENS PLC's like the S5TIME. In excel data automatically update and i want similar updation in plc also automatic. However, the Read(byte [] buffer, int offset, int count) function. com/excel-read-data-from-s7-300-with-libnodave/  ABB Drives function blocks for Siemens. However, you can also remotely write data to your Siemens PLC by using the Access Siemens PLCs through an existing Talk2M connection, AUG-040. At the same time, packages of data from sensors/switches that are directly connected to the basic I/O unit are exchanged with data in the PLC internal I/O Memory, at specific times. Mar 21, 2018 · Get into the world of PLC analog input and outputs and learn how analog signals work in PLC programming. Simple handling. Using the programming package PRODAVE S7 you can read data from a programmable logic controller (PLC) and write data to a PLC under Windows 95/98/NT/2000/XP via several CPUs from the S7-series. First setup the PLC in KEPserver. In the other direction data is read from the Rockwell PLC and placed in Profinet IO Input blocks. 5 Toolbox for WINDOWS 95/98/NT/ME/2000 Applications for a Data Link of PGs/PCs to SIMATIC S7 via MPI Interface and PC/MPI Cable. Commissioning with TBEN and Siemens PLC in the TIA Portal. Following step by step how to use FC105 SCALE CONVERT and FC106 UNSCALE CONVERT: An industrial IoT underlying architecture framework, focusing on the underlying technical communications and cross-platform, cross-language communication functions, to achieve a variety of mainstream PLC data reading and writing, to achieve modbus of various protocols read and write, and so on, to support the rapid construction of industrial upper computer software, configuration software Good morning Jesse, You can, but you would need to write vba code to do it, or add an “offset” tag in the PLC to represent the row. NET. Further information can be found in the documentation for the external control. Or, if the PLC needs to read a captured plot   15 Nov 2016 TIA Portal includes Modbus TCP server function blocks which provide MB Server functionality for S7 PLC's. 8 LOGO! values can "fit into" a single S7 value). Siemens S7-1200 Manual Online: Rdrec And Wrrec (read/write Data Record) Siemens S7-1200 TELECONTROL Operating Instructions Manual 132 pages. It's a simple matter to set up Modbus on the PLC, and there are Modbus libraries readily available for both LabVIEW and . Acyclic I/O data is defined by the Data Records. Easy to install, fast and  7 Jan 2015 In this article I explain how to implement a Siemens S7 plc driver by using the . The experts reported the flaw to Siemens in March and the company confirmed that it is working on a fix. Join our growing community of engineering professionals who share in that same passion. Coding Videos . 3AXD50000037864 Rev A . The primary and overall objective of this course is to give detailed understanding of PLC Programming, Relay Logic, Process Control and Data Communication using Siemens PLC; You will learn the difference between Digital and Analog Signals and how to bring them into a PLC, process them, and send them back out Read and write Excel files with the Siemens S7 PLC. So far I was using this vis to communicate (read/write) to standard access dbs and all is working beautifull, but now I have optimized access database option turned on (can't be turned off). PLC is ready to receive the next buffer data after receive the buffer is empty. PLCSQL Link in . Sep 20, 2018 · Read Write Data on Siemens PLC using Node-RED (S7) source. You can watch & record in real time the state of all types of variables: - Markers - Inputs/Outputs - Timers - Counters - Databases It is written in C# and it is using Snap7 library. I can't handle this issue. Another way to do it is to record all the data in a PLC data file like N7:0-255, and then read the entire data file into Excel. SiemensTCP/IPEthernetDriver neededtoreachthesamefinaloutputvalue. How can I do it?thanks n regards Aug 20, 2015 · Excel with makro, to read data directly from Siemens S7 PLC's over EthernetIP. S7 317 CPU. Read Write Data on Siemens PLC using Node-RED (S7) source Bookmark(0) Please login to bookmark. Oct 07, 2017 · I need to read data from PLC(Siemens S7300) with predefined tags. This could be used to read/write  Use the Matrikon Siemens OPC Server solution to access data from your Siemens S7 family of PLCs using OPC UA and/or OPC Classic. Siemens PLC data are Big-Endian, Arduino data are Little-Endian, you need to  26 Jul 2015 S7. in I, Q, M areas, etc. Fig. How to read PROFINET device status This application allows users to connect their smart devices to SIMATIC S7-1500, S7-1200, ET 200SP and Open Controller (PN/IO) via WIFI access point. Mar 17, 2009 · I have a 1756-ControlLogix L61 PLC on an Ethernet network. Type in the “Data Table Address” (This Controller side) as the place you want to store the read data or the place from which you want to obtain data to write to the other PLC. As just said, Siemens PLC data are Big-Endian, Arduino data are Little-Endian. What I do know is that  http://www. You read data in the PLC, and Write to the SQL server. In this course you will primarily learn: How to structure the PLC program using Struct and UDT. 7. NET library for communication with the Siemens PLC, available on NuGet. The PLC system hardware configuration is done solely with the Siemens Step7 tool. It allows to read data from all memory areas and variables you can access in your PLC programs. I thought it would be time to share my gathered knowledge of the S7 protocol as some might find it useful, interesting. ACS355 More parameters read from drive to PLC (optional) . I m using a plc S7 300 now. PRODAVE S7 V5. Connectivity solutions for your Siemens applications . Here you will learn everything about analog scaling with function blocks to wiring and configuring analog input and output modules. to refresh the data read from the PLC and how to visualize the data around the application in a The PLCDataReader is a simple and cost-effective way to read data directly from a Programmable Logic Controller (PLC) and write it to a XLSX file or CSV file. Panasonic PLC sent response results to the data input buffer, triggering Programmable Logic Controller – Siemens What are the various PLC system in SIMATIC S7 range ? Siemens has broadly 3 PLC ranges ie Siemens S7 200 , 300 and 400. High-performance data acquisition Supports analyses to improve plant availability, productivity, energy consumption, and quality. When a new Electronic-Key is inserted, the data are always read automatically from byte 0  3 Sep 2019 The new driver, Siemens S7-1200/S7-1500 (Symbolic Addressing), as maximum data read size is now up to 50 times greater than before. Author: Syed Shanu India In this article I will explain how to communicate with PLC (Programmable Logic Controller). Older PLC software requires the user to refer to data by this Address (example “x1023” could mean the 1023’d register). • Get ROFIBUS Status Word and ROFIBUS Communication List from MGate 5102-PBM-PN. Hello, We try to develop a client driver (for PXI RT OS) in LabVIEW using TCP/IP in order to read data (later also send back some) from a Siemens S7 PLC. Data;. The DataReader is a program of our PLC Data Tools. Data Types and Addressing 7. Some newer software makes the Addresses transparent. 9 Aug 2018 The read and write access to data on the PLC can be realized through the S7 Communication Services based on ISO-on-TCP (RFC1006). RECORD: The destination area for the read data record. com/simatic-programming-guideline . com. Whentheuserstopsmovingtheslideswitch Also a PLC can work as Client, in this case the data read/write requests are made via FB14/FB15 (Get/Put), and a S7 connection, created with NetPRO, is needed. Text; Read("DB1. We use MB10 to store it. The following table lists the elementary da 4 MN. 13 Sep 2018 Installation Manual: For PLCSQL link with Siemens TIA Portal. Example: 2 thoughts on “Siemens PLC and C# communication (Simatic Step7/PlcSim – VisualStudio)” I would like to ask for a question about the data type when This course is advanced version for Learn Siemens S7-1200 from scratch. In the included program a DB with some data. how to read data siemens from plc using . 1 Data Types 2. i d like to know how it 's possible to read and record data on plc to a pc with excel application?I did this operation some years ago with opc server with another plc systems. IO D21G into our machine in place of Siemens PLC i. • Set ROFIBUS Control Word from MGate 5102-PBM-PN. If I get a drop line to the Siemens PLC and incorporate it into the Ethernet LAN what would be the next step required in order to read data from the Siemens PLC. read data from siemens plc