Belajar PLC dan SCADA

Just another Blog about Programmable Logic Controller & SCADA.

PLC Programming Tutorial for Beginners

Written by Kang Abu on 11:45 AM

In this lesson we will learn how to write a PLC program using an "S7 300” PLC and “STEP 7” software.
We have two pumps which are being used to transfer two separate liquids into this tank.Inside the tank there are two level switches installed in the lower and upper parts of the tank respectively.

There is also an electrically powered mixer inside the tank which starts working for a defined period of time, mixing the two liquids together after the tank has filled.
We also have a discharge valve in the bottom of the tank which controls the draining of the liquid from the tank.
When the level of the liquid drops to the level of the switch's position the contact closes, sending a 24 volt DC signal to the PLC input.

We want to write the program so that when the level of the liquid reaches this minimum, the pumps will be activated and begin filling the tank with the liquids. 
The pumps continue filling the tank until the level reaches its maximum at the higher level switch. When this happens the open contacts in the switch will be closed and another 24 volt signal will be sent to the PLC input telling us that the tank is full. 

When this signal has been sent, first the pumps should shut down so that no more liquid enters the tank, and then this mixer should be turned on.

We want the mixer to operate for seven seconds, mixing the liquids that have been pumped into the tank.
After seven seconds the mixer should automatically shut down and this discharge valve should open.
With the valve open the liquid will be discharged from the tank and transferred to another location within the factory to be processed.

When the level of the liquid in the tank drops to the minimum set level of the lower switch, the switch contacts will close again thus starting a repeat of the cycle!






This is the third video of “star-delta starter PLC program and wiring video series”. In this video you’re going to learn the wiring of star-delta starter. 
The basic concept of star-delta starter is to first run the motor in the star connection for a few seconds to reduce the start current. Then when the motor has gained sufficient speed, change the winding connections to delta. 

PLC Training_Star-Delta Starter PLC program and Wiring_ Part 1:
https://youtu.be/skcaCBxyNSk

PLC Training_ Star-Delta Starter PLC Program and Wiring_Part 2:
http://youtu.be/FOKSkCR6JQY

PLC Training_ Star-Delta Starter PLC Program and Wiring_Part 3:
https://youtu.be/aEkQuqEdlVA

PLC Training_ Star-Delta Starter PLC Program and Wiring_Part 4:
https://youtu.be/SOZwFUzTQsU

PLC Training_ Star-Delta Starter PLC Program and Wiring_Part 5:
https://youtu.be/qA3Yg5CS-F8

PLC Training_ Star-Delta Starter PLC Program and Wiring_Part 6:
https://youtu.be/J9RMP8l3vDA

PLC Training_ Star-Delta Starter PLC Program and Wiring_Part 7:
https://youtu.be/0q-CDJinDVw

PLC Training_ Star-Delta Starter PLC Program and Wiring_Part 8:
https://youtu.be/nqlEK_ERTxk

PLC Training_ Star-Delta Starter PLC Program and Wiring_Part 9:
https://youtu.be/fiPSMyFIiFY


Siemens PLC - What exactly is Profibus-DP in layman's terms?

Written by Kang Abu on 11:02 AM

Today Profibus-DP is one of the most commonly used networks in industrial automation. Profibus stands for “Process Field Bus” and “DP” sands for “Decentralized Peripherals”. In this video we’re going to learn all about Profibus-DP and what exactly it decentralizes.

Using Profibus-DP, instead of wiring each individual sensor, actuator or other facility to the PLC individually, we can install a set of “remote I/Os” next to these facilities in the field area and then transfer the data to the control area using a single RS-485 cable. This can decrease the cost of wiring dramatically and on the top of that, since the data transmission method here is “digital”, industrial environment noise has less of an impact on data, so data communication between the control and field areas will be more robust.



Siemens TIA Portal

Written by Kang Abu on 5:11 PM

Divisi Industri Otomatisasi dari Siemens saat ini memperkenalkan Totally Integrated Automation Portal (TIA Portal) – software otomatisasi pertama dengan Engineering Environment dan Software project terpadu. Software ini memudahkan para penggunanya untuk melakukan pengembangan dan komisioning terhadap sistem otomatisasi secara cepat dan intuitif, yang memberikan efisiensi lebih terhadap waktu dan biaya yang diakibatkan oleh adanya berbagai macam software dalam melakukan integrasi. Didesain sedemikian rupa untuk efisiensi tinggi dan penggunaan yang mudah, TIA Portal telah disesuaikan untuk para pemula dan professional. Untuk selanjutnya TIA Portal ini merupakan dasar utama dari semua paket software engineering di kemudian hari untuk konfigurasi, pemrograman dan komisioning produk perangkat otomatisasi yang ada dalam portofolio produk Totally Integrated Automation dari Siemens. Sebagai contoh adalah New Simatic Step 7 V11 automation software untuk Simatic PLC dan Simatic WinCC V11 untuk Simatic HMI (Human machine Interface) dan aplikasi visualisasi.

Desain dari TIA Portal ini, Siemens telah mempelajari banyak aplikasi software engineering yang ada beberapa tahun ini serta mengamati dan melakukan evaluasi terhadap kebutuhan para penggunanya di seluruh dunia. Sebagai komponen dari perangkat engineering software Siemens, TIA Portal memberikan shared services yang lebih maju antar configuration interfaces yang menjamin keseragaman navigasi kepada para penggunanya serta sistem yang konsisten. Sebagai contoh, semua perangkat dan jaringan di dalam system automasi sekarang ini dapat dikonfigurasikan melalui satu perangkat dan editor jaringan. Project navigation, library concepts, data management, project storage, diagnostics dan online function merupakan layanan standard yang tersedia untuk para pengguna TIA Portal ini. Software development environment gabungan ini menawarkan tingkat efisiensi yang tinggi di seluruh project automation yang di dalamnya terdapat programmable controllers, HMI devices dan Drives. Sebagai tambahan, semua data management untuk parameter-parameter pada controller, block-block, tag-tag atau messages ini hanya memerlukan sekali input – sangat menghemat waktu dan biaya software engineering dari project itu sendiri. TIA Portal ini didesain berdasarkan advanced object-oriented software architecture serta data management yg terpusat, yang memberikan konsistensi data yang berkesinambungan secara otomatis untuk menghindari error pada data entry. Para pengguna dapat dengan mudah menemukan data yang diinginkan dan program blocks dari seluruh automation project menggunakan project-wide cross-reference system, yang dapat mengurangi waktu troubleshooting dan debugging program program project yang ada.
Aplikasi terpadu yang baru ini memungkinkan semua Programmable Controller Siemens, HMI operator panel dan drives dikonfigurasikan melalui satu environment development yang sama. Kelebihan ini dapat menurunkan biaya interfacing serta konfigurasi pada layanan-layanan yang biasa dilakukan ketika pengaturan komunikasi antar controllers, drives dan HMI devices. Sebagai contoh, pengguna hanya perlu melakukan drags and drops sebuah tag yang ada di dalam PLC, seperti sinyal dari modul I/O ke dalam tampilan HMI. Tag tersebut secara otomatis terbentuk di dalam HMI dan koneksi antara controller dengan HMI akan ter-create secara otomatis tanpa diperlukan konfigurasi manual.
Engineering software Simatic Step 7 V11 pada TIA Portal, dapat mendukung PLC Siemens seperti Simatic S7-1200 controllers, Simatic S7-300 dan Simatic S7 400 controllers serta PC-based automation system Simatic WinAC. Dengan cakupan programmable controllers yang luas memungkinkan Simatic S7 V11 untuk memenuhi tuntutan kinerja dan kemampuan yang menyeluruh dari sebuah software engineering untuk automation system. Kelebihannya adalah pemindahan konfigurasi yang ada di dalam Simatic Controllers dan HMI devices ke dalam project software baru hanya memerlukan waktu yang cukup singkat sehingga dapat menghemat waktu dan biaya untuk proses migrasi.
Simatic WinCC V11 yang baru ini juga berpatokan pada TIA Portal yang termasuk di antaranya konfigurasi machine-level application yg menggunakan HMI operator panels yang mendukung model panel Simatic TP dan MP, Simatic HMI Comfort Panel dan PC-based SCADA (Supervisory Control and Data Acquisition) process visualization system. Konfigurasi dan commissioning untuk Sinamics inverter drive nantinya juga akan dikembangkan di dalam TIA portal ini. (kpl/sie/roc)

Migration Guide: SIMATIC S7-300/400 to SIMATIC S7-1500

Written by Kang Abu on 4:50 PM

This migration guide contains recommendations and notes for users who are currently using SIMATIC S7-300/400 automation systems and plan to migrate to the new SIMATIC controller generation S7-1500.


The new controller generation SIMATIC S7-1500 has an up-to-date system architecture and, together with TIA Portal, offers new and efficient programming and configuration options. To be able to use these advantages, it is important that users who are currently using SIMATIC S7-300/S7-400 automation systems and plan to migrate to the new SIMATIC controller generation SIMATIC S7-1500, develop a detailed comprehensive concept for planning and implementing the pending migration. This requires thorough clarification in the run-up to migration.

Figure 1
  

The objective of this document is to support plant migration to a modern controller generation and cover the most important questions that may arise in this context. This document contains recommendations and notes for this migration.
This document covers the following key issues relating to plant migration from S7-300/S7-400 to S7-1500:

  • Planning a plant migration
  • System architecture S7-300/S7-400 and S7-1500
  • Hardware migration
  • Software conversion
  • Overview of the most important recommendations
  • Comparison of SIMATIC S7-300/S7-400 and S7-500 components

NoteThis document is not valid with SIMATIC S7-400 in combination with PCS 7.


LOGO! 8 - High performance at a low price

Written by Kang Abu on 2:26 PM

New features

• Eight devices with an onboard Industrial Ethernet interface in a space-saving design (4 MW) 
• Crystal-clear display with six lines and three selectable background colors 
• Optional LOGO! CMR2020 and CMR2040 communication module 
• Integrated web server for hassle-free programming via remote control, IWLAN, or the Internet

Source: Siemens.com

High performance at a low price

Compared with its predecessor, LOGO! 0BA7, the innovated LOGO! 8 logic module offers more functionality in its spacesaving design of only 4 MW, at lower costs. Eight basic devices with and without display and for different voltage ranges have the same range of functions, which makes it very easy to choose the required version. Externally, the crystalclear, perfectly readable display, which now features six lines with 16 characters each, catches the eye. The user now benefits from twice as many characters per notification than before, as well as three interchangeable background colors. For greater visualization demands, another text display can be connected to the integrated Industrial Ethernet interface. The module is programmed via Industrial Ethernet, eliminating the need for a special programming cable.

An outstanding feature of the new LOGO! is the integrated web server, which can be configured with no special programming skills and enables hassle-free and inexpensive remote control and monitoring via IWLAN or the Internet. The LOGO! Soft Comfort V8 software has been completely redesigned. Communications via Industrial Ethernet are now configured automatically in the network view. Linking of function blocks and transfers between the various programs are easily performed with drag and drop. Existing programs from older versions can be carried over directly, making it significantly simpler to migrate to LOGO! 8.

Siemens micro automation offers targeted and cost-effective solutions for minor automation tasks. The new LOGO! 8 logic module provides tailored, expandable solutions and enables communication via web server without HTML programming skills.

siemens.com/logo

Jika kamu tertarik untuk belajar PLC Siemens Logo! 8, silahkan Klik Disini!
Ada 4 link yang harus kamu ikuti untuk mengetahui lebih detail tentang PLC mungil ini.





Android App is available for Siemens Logo! Download here!



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