Access Control with RFID System
Turck's IO-Link RFID system secures high-voltage tests at the Belgian railroad SNCB
To guarantee safe working conditions, companies must reliably ensure that only people with the appropriate training are allowed access to certain areas and facilities. The Belgian railroad company SNCB uses an RFID system from Turck to monitor access to the high-voltage test areas of its central workshop in Mechelen. Trains are maintained, rebuilt and overhauled there. In a new laboratory, SNCB tests the power converters of the trains at 3000 volts.
"The risks of a 3000 V installation should not be underestimated," says Kristof Honee, in charge of the electronics department at Belgian Railways SNCB's central workshop in Mechelen. "Even when the voltage is switched off, there can still be charge in coils and capacitors. That's why the work must always be done systematically, according to established procedures and by people who are aware of the risks." In Belgium, overhead power lines for trains carry a DC voltage of 3000 volts. Power converters on the trains convert the high voltage into lower voltages for the drives, air conditioning and all other equipment.
Laboratory power supply delivers 3000 volts
"In the new lab, we have three test zones to test the converters after they have been overhauled or repaired," Honee explains. "Many components can be tested at lower voltages, but for the final test, we use a laboratory power supply that can deliver 3000 volts, just like the overhead line." The tests must be conducted according to strictly regulated procedures, with close attention paid to safety risks.
SNCB asked the Belgian systems integrator Dymotec - specialized in industrial electrical installations and automation - to develop a system capable of managing the test procedures while respecting all the required safety aspects and controlling access. Key to this is the management of authorizations and the tracking of all procedures.
RFID system secures access to the test area
At the entrance gate to the test areas in the laboratory, K50 LED signal lights are installed that change color depending on the status of a zone. At each door, as well as at the control panels, there is an RFID reader where operators must have their badge, an RFID data carrier, read to gain access. "Our employees receive training to cover all safety aspects of each type of converter," says Kristof Honee. "Dymotec's system ensures that all safety requirements are met at every step of the testing process."
The RFID readers check who is logging in. The PLC checks to see if that person is authorized to gain access in a particular situation or to start the next step of an operation. Finally, the PLC controls the lab's power supply and ensures that the test setup is turned on only when the situation is safe. Operators must confirm each step so nothing is overlooked.
RFID read/write heads and indicator lamps
Dymotec uses Turck's RFID system for this purpose. The RFID read/write heads read the ID of a badge and transmit it to the PLC via IO-Link. "The RFID system can be implemented quite easily," says Jimmy Volders, project manager at Dymotec. "The RFID readers and the signal lamps are connected to IO-Link masters via IO-Link. These also provide the power supply, so not much cabling is needed."
The TBEN-L5-8IOL IO-Link masters communicate with the PLC via Profinet. Using the IO-Link modules' integrated two-port switch, the masters form a line topology so that only one Profinet line needs to be run from access door to access door, which in turn saves wiring work.
The test areas are equipped with K50 signal ights from Banner Engineering, which are controlled by the PLC to change color. As a result, one light per entrance door is sufficient, unlike traditional stick-type color signal lights. Programming does not have to be limited to selecting a single color. The LEDs can be controlled individually. The control units have been equipped with signal lights with sound function, so the system can also issue acoustic warning signals.
Thanks to the automation of the test facility, all safety procedures are now implemented effectively - without slowing down operations through manual processes. Full traceability of every action is ensured throughout.
Further Information
- Link to the Product: LED Signal Light K50
- Link to the Product: LED Signal Light K90
- Link to the Product: Compact Multiprotocol I/O Module TBEN-S2-4IOL
- Link to the Product: Compact Multiprotocol I/O Module TBEN-L5-8IOL
- Link to the Product: Read/Write Head TN-M30-IOL-H1141
- Link to the Product: TW-L86-54-C-B128
- At a Glance: Digitize your Flow of Goods with RFID Systems
- Автопром
- Штамповка
- Кузовной цех
- Покрасочный цех
- Финальная сборка
- Силовая установка
- Успешные внедрения
- Модули RFID и модули ввода/вывода для безопасной смены инструмента
- Проводной интерфейс IO-Link для производства глушителей
- Идентификация держателя заготовок в произвидстве вентиляционных клапанов
- Детектирование приварных гаек
- Отслеживаемость RFID
- RFID в производстве двигателей
- RFID в производстве бамперов
- Решения для покрасочного цеха
- Датчики для сварочных и сборочных процессов
- Датчики угла поворота для систем сборки
- Идентификация инструмента
- Система Pick-to-Light в сборочном производстве приборной панели
- RFID идентификация форсунок
- RFID в кузовном цехе
- Интерфейс IO-Link упрощает производство дифференциальной передачи
- Химия
- Энергетика
- Пищевая отрасль
- Управление высотой теста в тестораскатывающих машинах
- Идентификация контейнеров для пищевых продуктов
- Проверка контейнера
- Определение положения клапана
- Определение колена трубопровода
- Идентификация шоколадных форм
- Успешные внедрения
- Бесконтактный датчик положения в картофельном производстве
- Применение устройств радиочастотной идентификации (RFID), работающих в УВЧ диапазоне, на оптовой продуктовой базе
- Радиочастотная идентификация в производстве шоколада
- Система распределенного ввода/вывода для пищевого оборудования
- Удаленный ввод/вывод для перегонных заводов
- RFID и автоклавы
- Прозрачность в производстве шоколада
- Блоки питания для конвейеров в IP67
- Идентификация в хранении продуктов питания
- Колёсная техника
- Контроль расхода материала на зерноуборочном комбайне
- Определения углового положения стрелы
- Подсветка отсека оборудования на пожарных машинах
- Двухкоординатное измерение наклона зерноуборочного комбайна
- Успешные внедрения
- Access Control with RFID System
- Блочные модули ввода/вывода на Супер Яхте
- Износостойкий датчик положения на самоотвозном земснаряде
- Распределенный ввод/вывод для борьбы с пылью
- Охлаждение шкафа
- Быстроразъемное соединение
- Решения по автоматизации для предельно низких температур
- Удаленный ввод/вывод для кранов
- Прочный металлический подъемник
- Позиционирование для «американских горок»
- Решения для передвижного оборудования
- Точное вертикальное позиционирование
- Измерение критического угла
- Датчик угла для измерения высоты подъема платформы
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- Фармацевтика
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