Data block tia portal
Data block tia portal. data as Modbus master from the two slaves (CM PtP of the ET 200SP). Last visit: 8/30/2024. Last visit: 5/20/2024. DB1 InstPutGet Instance data block of FB1 "PutGet". You also have the option of Sep 21, 2018 · Posts: 15. Then, on the first screen, click on “Create a new project”, give it a name (“Box sorting machine” in this instance), and click on “Create”. Programming the Modbus master by means of the FB “Master_Modbus” and • an instance data block (e. You should avoid using MOVE to access pointer data, instead, use BLKMOV. Creating a new project in TIA Portal. Para crear un DB en TIA Portal primero debes irte a la pestaña «Agregar nuevo bloque«, en la carpeta «Bloques de programa«. Each Timer type has its own instance data type, as shown above. I can't figure out how to export/import function blocks with TIA Portal. Utility instructions Aug 6, 2007 · Posts: 54. In this chapter, you will become acquainted with the use of global data blocks for the SIMATIC S7-1200 with the TIA Portal programming tool. Rating: (2411) You can right-click on the DB, select "Generate source from block", or "Copy as text" to generate a text-based document that allows portal to recreate the DB with the same tags and configuration as the one you copied. Last visit: 11/1/2021. Rating: (20) Greetings, is there a difference between Global DB and Instance DB(in particular static area) in terms of data handling? An installation of Tia Portal. Last visit: 8/5/2024. Rating: (63) Hello, address offset is defined automatically by optimized DBs, if you need to be able to control the offset of your variables you will need to remove the "Optimized" attibute of the DB, after doing this the address offset will be displayed in its respective column in the DB. m BYTE 20 After calling SFC20, the 3 parameters appear automaticly. The configuration and parameter settings for the drives is realized as follows 1. This is STILL an issue some times. Navigating to program blocks, highlight your data block and drag it over to the left-hand side – Under OPC UA server interface. Suggestion; To thank ; Quote Dec 7, 2016 · so i think to shift a data in db block similar circular buffer and move to calculate average . WIth S7 it's a simple copy and paste. To follow along with this tutorial, you will need an installation of TIA Portal. Similar to the ANY data type, TIA Portal essentially creates a pointer to the data and passes that, but with a few extra elements: This video is about data blocks, used in TIA Portal. Global data blocks store data that can be used by all other blocks. In general, the programming of the SIMATIC controllers from S7-300/400 to S7-1500 has stayed the same. Keep in mind though, if the destination point for TDB1. There are the known programming languages such as LAD, FBD, STL, SCL or graph and blocks such as organization blocks (OBs), function blocks (FBs), functions (FCs) or data blocks (DBs). A FIFO, or First In, First Out, is a great way of managing an array of values. For telegram data from external devices, it is sometimes helpful to use non-optimized DBs. z BYTE 20 RET_VAL := MWzz DSTBLK := P#DBoo. That's not working with the Portal. z = the start adres of your souce block, BYTE 20 states the length in bytes Jun 10, 2020 · 4. Oct 23, 2022 · Example of FIFO Function Block. Creating a PLC data type for a lubricating plant depot, for example. to bool), and then back to the intended data type. Rating: (0) One thing that I did that seemed to work (although I don't know why) is by changing the type to a different type (i. Jun 19, 2012 · My Idea of how to implement this was to use a function in the TIA portal called "PLC data types". Digital Alarms in Tia Portal. Sep 18, 2013 · Retentivity settings can be defined only in the assigned instance data block if optimized block access has not been activated for the FB. DB4 RecvData The data received from the communication Jul 13, 2021 · Posts: 6. Rating: (0) Hey, I was wondering if there is a good way to transfer the data from a group of tags to a data block. Posts: 3. In addition to the "PID_Compact" control block, STEP 7 (TIA Portal) also provides the following compact controllers with automatic tuning for the SIMATIC S7-1200/S7-1500: • Modulating controller "PID_3Step" for valves or actuators with integrating behavior (\10\) Apr 16, 2016 · Split from as offset activate TIA PORTAL V12, can someone help me set up . However, a not-so-well-known secret of TIA Portal is that all of these timer instance data types are actually an alias for the data type IEC_Timer. PLC data types can be used for the following: • As data types for variables in the variable declaration of code modules or in data modules. Rating: (0) thats right FC does not have memory block while FB requires instance Data Block for exercution. It's a method of grouping variables of the same data type in a long list, and accessing each internal element via an index. docx 3 Requisiti hardware e software 1 Engineering Station: i requisiti sono hardware e sistema operativo (per ulteriori informazioni vedere il file Readme/Leggimi sul DVD di installazione di TIA Portal) 2 Software SIMATIC STEP 7 Professional in TIA Portal – da V13 _____Nesta aula veremos sobre as data blocks no TIA Portal!_____C It should work if you perform the correct procedure. Learn-/Training Document Sep 15, 2022 · TIA Portal almost forces you to use variables and data blocks, so apart from using Tags as an abstraction layer, with %I addresses gathering input data and %Q addresses processing output data. Oct 28, 2019 · Why are there three different types of FB instances?Find out here!If this video helped you, please consider helping me by joining my "GoFundMe" and donating The configuration of the function blocks is performed in the TIA Portal as of V12 SP1. In this chapter, you will get to know the basic elements of a control program – the organization blocks (OBs), functions (FCs), function blocks (FBs) and data blocks (DBs). 5. The data that is written to the holding register of the Modbus TCP server is stored in the data block DB3 "HoldingRegisterWrite". There are two types of data blocks: Global Data blocks; Instance data blocks; ARRAY data blocks; Global Data Blocks. 1 Motivation In order to be able to facilitate the use of technological functions that can be used May 10, 2017 · Hi,I am new to TIA portal. MB_DATA_ADDR: This input is a UDINT for the Aug 3, 2023 · Joined: 11/5/2012. Feb 4, 2021 · A DB is a Data-Block a defined memory area. So, I have addresses like IW0 up till IW70. Aug 24, 2021 · Website: http://nguyenvannguyenplc. Apr 6, 2011 · Check your "standard library, system function blocks" after you opened an FC then in STL: CALL SFC20 SRCBLK := P#DBxx. Understanding SCL block creation. Now that we have defined all the machine’s specifications, we can start writing our PLC program. Essentially we’re using PLC_1 to increase a counter variable in PLC_2. Jun 24, 2020 · در این ویدیو با دیتابلاک در نرم افزار تیاپورتال آشنا خواهیم شد. Static: The value of the static variables are persist even after the block is called, therefore only FB has it and the instance DB is used to persist the value. I am using TIA V15. In this video, we’re going to show you a quick introduction to Data Blocks in Siemens TIA Portal and the benefit of using Data Blocks when collecting groups of data in the PLC. 0, 05/2017 5 G 7 d 1 SIMATIC’s Technology Objects 1. After that, add the plc & hmi to your project. Tags of a global data block: You can define retentivity either for individual or for all tags of a global data block depending on the settings for access. Please Subscribe to Easy PLC Training Sessions for more Videos and Trainings in this video we see how to export data blocks tags in tia portal v16 and how to import data block in hmi wientekwhatsapp +923476670660#tiaportal #v16 #fory Types of Data Blocks in PLC. Posts: 9. Symptoms: "Rename" isn't available in the drop-down menus for the blocks and the name field is greyed out if entering options. DBW 54 The Function Block Diagram (FBD) language, part of Siemens' TIA Portal ecosystem, facilitates the creation of sophisticated control algorithms through graphical programming. In this tutorial, we will be using TIA Portal V16. Currently i am using TIA V13. The Variant data type is a special data type that accepts almost anything. Sep 8, 2021 · Website: http://nguyenvannguyenplc. Rating: (0) Hi all, I need to write a function where an operator will be able to press a button on the OP and so part of DB will be reset (all Value set to false – or to its default values). Arrays are one Dec 13, 2018 · Joined: 7/7/2010. In this tutorial, you will learn how to harness the power of FBD Joined: 4/28/2015. Rating: (584) Hi, are these datas in an optimized or non optimized block? Also check these FAQs: How do you copy memory areas and structured data in STEP 7 (TIA Portal)? Jul 13, 2019 · With more recent firmware and TIA portal versions (I do not recall how "new" this feature is), you can use File I/O. Posts: 15121. hope this helps, regards, FCK WAR! Be nice! Suggestion; To thank ; Quote; Answer May 12, 2019 · Subscribe to this channel for more Videos and Tutorials 😊See also : https://youtu. Oct 10, 2012 · Example: I have made a datablock for parameters which can be adjusted through a HMI panel. في هذا الدرس سوف نتعرف على:مثال تطبيقي عن Function Bock و Data Block ملف التحميل للبرمامج:https://www. While version 16 is used in this tutorial, other versions of the TIA Portal are also compatible; Understanding Data Blocks (DBs). By loading new data at the front and shuffling all current data up by 1 element, data “Flows” through the array until the most recently added falls off the end. For example, if I wanted to access Element 17 from the Array_1 in the above image, I would use Array_1[17]. 0 whichwill not work in TIA Portal 10. E. No additional hardware or software is required. 1 thankful Users Hossin1234 Aug 15, 2013 · Joined: 7/7/2010. Posts: 6. Introduction. 13, and 67. An installation of Modbus Poll (a simulation software that serves as a Modbus master) An installation of Modbus Slave (a simulation software that serves as a Modbus slave) Creating a new project in TIA Portal. Last visit: 8/14/2024. 1. Oct 23, 2017 · Joined: 3/3/2014. Aug 22, 2017 · Just be sure and pass them into and out of the blocks as parameters rather than accessing M-tags directly within these function blocks. The UMOVEBLK and other MOVEBLK blocks keep complaing of array or other things. Oct 1, 2022 · Example Of A Single Block Accepting 2 Different Data Type Inputs Using Variants. Data Block in TIA Portal V13 Created by: The concept for the S7-1200 and S7-1500 is link to the data This has shown how to read data on a Modbus server into a Modbus client in TIA Portal. Data Blocks are getting more and more important and easy to use but on the other side complex, powerful and frightening! But actually they are quite simply, see for In this video, we're going to show you a quick introduction to Data Blocks in Siemens TIA Portal and the benefit of using Data Blocks when collecting groups of data in the PLC. I don’t see the need for Tags at all Jul 30, 2023 · R1. Apr 6, 2020 · Khi Add các Block để lập trình là lúc bạn chọn lun loại ngôn ngữ coding. g. DB “Master_Modbus_DB”) • the DB “Comm_Data” – with the “Param” structure The TIA Portal software should be installed on your computer. I would suggest upgrading to the latest available portal software and firmware for the PLC. com/khoa-hocĐại Lý Cung Cấp Và Phân Phối Các Thiết Bị Siemens (SĐT: 0353794062): Logo, PLC S7-200, PLC S7-300, PLC Jan 29, 2023 · The BLKMOV and AT constructors can be used to manage moving data from one data type to another. Configuring the Profinet network in TIA Portal. The data block can be saved and downloaded into the PLC . Check the following updated video. To set communication between two Siemens PLCs, we need to create and configure a Profinet network Jul 13, 2019 · With more recent firmware and TIA portal versions (I do not recall how "new" this feature is), you can use File I/O. 8 – Example Of Timer Instance Data Types. Last visit: 8/10/2024. Nov 14, 2014 · Hello,I'm looking for some help. TIA Portal can automatically create a pointer when trying to access complex data like arrays. Currently I am using the MOVE function to individually move one tag at a time to the data block. Apr 15, 2021 · Hello I have a s7-1200 and i want to move a data block that has an array[0-101] of words to a data block that has an array[0-50] of real. First, we need a Data Block to declare and store the alarm's values. ?. The structure of a PLC data type consists of several elements of different data types. Es aquí: https://www. Last visit: 2/25/2022. Rating: (9) Hello everybody, I'm making a FB in order to manage some drives and I need to create a Timer (TON) inside the FB, I mean, I don't want to create the Global DB, as I normaly do in a FC, but I want to create it, locally. Last visit: 7/22/2024. g. 987 on TIA Portal Modbus Data Block. The downside is you can't use absolute address for direct access, only symbolic. Posts: 15111. Posts: 15125. Sep 22, 2020 · Joined: 7/9/2015. I am looking for a way to move all these data directly into a DB and have not been able to get it correctly. In this tutorial, we will be looking at the different types of function block instances that can be used in PLC programming using Siemens TIA Portal. Buatlah leader program di software TIA Portal, setting logic-nya sesuai dengan project yang sedang di kerjakan. 8 (Simulated) The application in the example is as follows: PLC_1 Gets data from PLC_2; PLC_1 updates the data; PLC_1 Puts data into PLC_2; The above cycle repeats, incrementing a counter. Rating: (2410) I believe the answer strongly depends on the portal version / service pack / update level as well as the plc model number and firmware revision. be/Mpwa4AVvxVoVideo tutorial about how to work with properties of data blo When generating data blocks, you can designate PLC data types as a type. omment for documentation ( optional ). . I am reading values into input addresses using a Profinet comm by GSD file. Rating: (0) Using TIA v14sp1 myself. Mar 13, 2017 · InOut: It is a kind of pointer, you pass data through the InOut pin to the block without really copying it. Last visit: 2/28/2022. i . The user program of the master and the slaves is located in the S7-1500 CPU. If your PLC is very new, it might have firmware 3. In S7-1200 for having addresses in DB you have to choose Block Access as Standard, as shown in Image "02_STEP 7 - TIA Portal v11 - 01" Oct 24, 2017 · Joined: 7/7/2010. DBW 54[/code]loads the variable analog_valueand transfers it indataword 54(Byte 54 and 55) in the data block 1 or like this [code]OPN DB 1 L PIW 72 TDBW 22[/code]selects/opens DB 1, loads the periphery input word 72 and transfers it into data word 22 (of the actual open DB) And to read from DB just in the other direction: [code]LDB1. Table 2-3 Variablenname Datentyp Hinweis holdingRegister Array [0 . Thanks for any help in advance. Jan 13, 2020 · Joined: 10/25/2019. com/khoa-hocĐại Lý Cung Cấp Và Phân Phối Các Thiết Bị Siemens (SĐT: 0353794062): Logo, PLC S7-200, PLC S7-300, PLC Feb 23, 2022 · I am using an S71515 PLC TIA V16 Updat4. Rating: (152) What does it mean Setpoint that you can check/uncheck in the datablock editor in TIA? Jul 31, 2018 · Joined: 12/7/2015. 65535] of Word Entspricht dem data block, which are decisive for restarting after a power failure. Nov 27, 2018 · Data blocks are used to store program data. After creating the interface, on the right-hand side, under OPC UA elements, you can see the program blocks and plc tags created in your program, same as technology objects. Is it possible to reference a data block by its ID number based on a index? Nov 16, 2019 · Please Subscribe to Easy PLC Training Sessions for more Videos and TrainingLink for Part # 1 PLC Tutorial for beginners Part #1 Hardware preview https://www. Constant Basics. Setelah memilih tipe PLC yang di inginkan pilih program block; Pilih add new block; Pilih function seperti di gambar berikut; 6. DB3 SendData The data to be sent to the communication partner with the "PUT" instruction (SendData) is stored in the data block DB3 "SendData". If you still have problems, please share snapshots of procedure and your program. Rating: (584) Hi, your question is very general and so you get this FAQ about DB in TIA: What differences should you watch out for between optimized data storage and the standard type of block access in STEP 7 (TIA Portal)? Mar 1, 2021 · Tengo algo que contarte más importante que lo que estás viendo en este vídeo, es muy probable que te interese. During program runtime, constants assume unchangeable values, representing data that remains fixed. Posts: 234. Have a look again in the TIA-manual: Basic principles for programming of data blocks. In the declaration, the data elements are assigned only a symbolic name and no fixed address within the block. Launch TIA Portal and add a new device. The second thread with the subject Exporting data block from an EXCEL to TIA portal via Openness is published within the conference STEP 7 (TIA Portal). Posts: 487. Does it make sense to use a data block wrapper? Thanks in advance! Jack. SCE_IT_032-600 Global Data Blocks_S7-1500_R1703. I don't know if this is something new to the TIA portal as I am new to this, but to me this looks similar to a STRUCT. With the FBD language, engineers can build control logic by selecting and connecting function blocks, creating a cohesive and efficient control sequence. Posts: 3943. For communications blocks, it's usually necessary. DB2 GeneralData Includes the variables for the parameters of the FB1 "PutGet". tambahkan new block dengan mengklik menu add new block, caranya sebagai berikut. Feb 19, 2013 · Joined: 1/22/2013. db_write(start: int, size: int, data: bytearray) Writes a certain number of bytes into a Data Block by defining the DB number, the starting byte, the number of bytes, and the byte array to send. We will be using TIA Portal v17, but you can use any other version. These data blocks can be customized by changing the actual values for the appropriate task. Sep 25, 2012 · The portal version you are using is a couple of years out of date, and quite buggy. Posts: 8175. Last visit: 8/23/2024. TIA Portal Module 031-300 IEC Timers and IEC Counters – One instance data block for several instances of one or more function blocks. The standard block access uses Big-Endian while optimized access uses Little-Endian. Its structure is mutable and can be composed of any combination of other data types available and arrays, for example. tia portal. programacionmultidiscipli May 23, 2013 · It's that functionality that I want in TIA portal, or to say different, that I don't know how to do in TIA portal. 1 Motivation TOs of S7-1500(T) Entry ID: 109743134, V1. Hướng dẫn hiển thị, truy cấp địa chỉ tuyệt đối của Data Block - TIA Portal Truyền thông Ethernet/IP giữa 2 PLC Omron NX1P2 và Siemens S7-1200 Truyền thông Modbus RTU PLC Siemens S7 1200 với biến tần Delta MS300 Oct 5, 2022 · Learn how to use Arrays with Siemens TIA Portal >>> Arrays are an important data type in PLC programming. Mar 11, 2016 · Joined: 7/9/2015. In previous courses we saw using SCL networks within FBD code. Ở chế độ mặc định, địa chỉ tuyệt đối của Data block PLC S7 1200 sẽ ở dạng tags, không hiển thị địa chỉ tuyệt đối (Absolute operands) Understanding User Data Types in Tia Portal. ⚡Initial Setup Jan 18, 2012 · In TIA Portal, s7-1200/1500 logic when written the way Siemens designed the hardware and software intended rarely requires the offset to be visible (using non-optimized datablock configurations). Posts: 1410. Rating: (1) I am using a S7-1500 PC & TIA V15. The problem is that i want to transfer the data block with the array of word from the second word and after. I have a PLC running on a machine that I hardly don't want to stop. We have written the data 1123, 7893, 12. During every cycle FC losses its contens while the FB gets its memory to its associated blockFC is commonly used in arithmetic calculation and etc May 8, 2015 · Is there a maximum cap for the number of data blocks that I can create in S7-1500 family? Is that restricted by licensing? I am using TIA Portal v13. Therefore it is typically used to pass a complete DB or a structure into a block. In the TIA project I've just added one DB with non-optimized access (don't know if it does any difference but I need this option because this DB is used for data exchange with another PLC) and a small piece of code where I rewrite some values into 2 variables from this new DB. Writing data from the PLC to Modbus slave. Ahora, para terminar de crear tu bloque de datos , debes seleccionar « DB «, asignarle un nombre (el que gustes) y darle a Aceptar (el tipo, déjalo como Bloque de datos Global ) The function block instance-specific data might be stored in its instance data block or the calling block's instance data block. They are faster to access and work on, and because they are only accessed within OBs, you should be in good shape with that approach to using M-tags only in org blocks. Digital alarms in Tia Portal are represented by a boolean signal contained in a word-type variable, so let’s build a simple alarm example. The maximum size of data blocks varies depending on the CPU. They're composed of constructs that show where the data starts and its length. 5. To write data from TIA to the Modbus server simply change the MB_MODE parameter to 1 on the MB_CLIENT block. There are instructions (F1-help for File Reading and Writing) that allow data to be stored on the memory card as a csv file (as an example). please help Thank you . Last visit: 7/17/2023. com Oct 9, 2022 · Data blocks with optimized access have no fixed defined structure. This means that TON uses TON_Time, TOF uses TOF_Time and TP uses TP_Time. Apr 4, 2012 · STEP 7 - TIA Portal v11: The red highlighted area in image "02_STEP 7 - TIA Portal v11 - 02" has the addresses. It would be great if anyone can suggest a good practice to limit the number of data blocks. Feb 4, 2022 · Joined: 6/19/2017. Find the call structure in LAD/STL/FBD editor and you need to update all instances in the nested structure. Start by launching TIA Portal. Jun 25, 2020 · Learn about creating Global Data blocks (DB) with Simatic STEP 7 in TIA Portal. Nov 14, 2019 · The exact breakdown of this parameter, along with the MB_DATA_ADDR and MB_DATA_LEN parameters and how they correspond to Modbus function codes can be found in the block documentation (which can be accessed by pressing `F1` on your keyboard while the MB_CLIENT block is highlighted in TIA Portal). The module explains the structure and creation of and access to global data blocks for the SIMATIC S7-1200. It uses less memory space. This way, the data is ready for the processor, that doesn't need to resort it. Join our Siemens TIA Portal Programming eLearning Course, Today! Want to learn more about Siemens PLCs and TIA Portal? Click here and access 30+ Siemens TIA Portal Oct 27, 2022 · Both of these PLCs are running TIA Portal V17 – Firmware V2. Organization blocks (OBs): Vòng quét chương trình chính- Program Cycle: thực thi vòng quét chính chương trình bạn viết. Last visit: 8/29/2024. DBXy. In addition, you will be introduced to library-compatible function und function block programming. Suggestion; To thank ; Quote; Answer; This contribution was helpful to . •Can be used on all S7 data areas •Wizard is available for setup in TIA Disadvantages •No security •Blocked by default on the S7-1200 and S7-1500 •Data blocks have to be unoptimised •Only small amounts of data can be transferred <160bytes •No acknowledgement of transfer this needs to be engineered if needed Feb 16, 2015 · Joined: 9/8/2009. See full list on instrumentationtools. So I have made a data type with the following elements [ID(int), Motor1 SP(Real), Fan_on (Bool)]. Posts: 278. Here you will find some information on types of data blocks, access types, structure of data block, fun This has shown how to read data on a Modbus server into a Modbus client in TIA Portal. P# states an any-pointer DBxx. Rating: (171) Closed cause question posted twice. Jun 25, 2020 · Learn about working with Global Data blocks online with Simatic STEP 7 in TIA Portal. You can Feb 4, 2022 · Joined: 12/14/2021. Besides the usual data types (Integer, Real, Boolean…) a variable in Tia Portal can be of a predefined data type called User Data Type. 1 SIMATIC’s Technology Objects 1. Posts: 112. Here's the answer. Oct 8, 2019 · What kind of variables can be used for S7-Communication?Why do we need standard block access?Find the answers here!If this video helped you, please consider Sep 30, 2016 · The optimized block access rearranges the data inside the block. DBXp. As the name suggests, the global data block is globally declared for the whole PLC logic. Hướng dẫn hiển thị, truy cấp địa chỉ tuyệt đối của Data Block - TIA Portal 1. Last edited by: The Helping Hand at: 4/17/2016 5:57:04 PM New subject after splitting Mar 4, 2021 · Hi, I have a similar doubt. I figured out that you can take snapshots, but for that you have to go online in each different datablock, take a snapshot, go back offline, copy paste the snapshot values to the start values, compile and download again. program complex code in an SCL Block and interlocking section of Outputs in an FBD Block. • As a template for creating global data blocks with the same data structure. This can be useful if you are managing buffered data, or data from a network protocol such as Modbus, where all data is sent in packets of Words 📝NoteFor both the BLKMOV and AT constructor, block optimization At the "dataBuffer" parameter you specify the data area for storing the data that is sent to the Modbus TCP server. Oct 7, 2022 · Pointers are a handy method to manage vast data sets where symbolic data allocation isn't possible. You can create several data blocks based on this type, all of which have the same data structure. e. You could use that to store data and retrieve data for long term storage. Data blocks thus contain variable data that is used by the user program. In OB1 for example, M-tags are perfect. 2- Các BLock: organization blocks (OBs), function blocks (FBs), functions (FCs) or data blocks (DBs). The mode switch on the PLC must be on STOP! ( Name Type Initial value Comment ) C sav Note: If the data block is assigned as a local instance DB to a FB, the declarations table of the FB declares the structure of the DB. Rating: (0) I'm seeking for some help with exporting data block from an excel to TIA portal via openness. Mapping, (membuat Apr 28, 2021 · Note: You are free to use the programming language of choice which fits best to your needs. همچنین با آدرس دهی غیرمستقیم و دو فانکشن Reads bytes from a Data Block by defining the DB number, the starting byte, and the number of bytes to read. After starting up the system on site I want to save all the values from the online program to my offline program so next time I make a change and download it, no values are lost. Rating: (2411) If you have s7-200 software, microwin, you can paste this into a STL block, then switch it to FBD or LAD and see if it makes more sense. You can define its content and structure, and you are able to read and write from/to it. You can define the structure of global data blocks anyway you please. iplkjz ayeifv dvdzzjd czd zxie wkrp iubk egxkteq mhxztw pcko