Belgian Railways Uses RFID System to Secure High-Voltage Tests
RFID Read/Write Heads and Indicator Lights
The LED indicators are connected via the particularly compact TBEN-S2 I/O module.
TBEN-S2 I/O module
- PROFINET Device, EtherNet/IP Device or Modbus TCP Slave
- Integrated Ethernet switch
- Supports 10 Mbps / 100 Mbps
- Glass fiber reinforced housing
- Shock and vibration tested
- Fully potted module electronics
- Protection classes IP65 / IP67 / IP69K
- Galvanically isolated voltage groups
Contact: Bernd Wieseler
Dymotec uses the RFID system from Turck for this task. The RFID read/write heads read the ID of a pass and transmit it to the PLC via IO-Link. "The RFID system is very easy to implement," says Jimmy Volders, project manager at Dymotec. "The RFID readers and the signal indicators are connected to IO-Link masters via IO-Link. These also provide power, so there's not a lot of wiring involved."
Turck IO Link Master TBEN-L5-8IOL is in charge of signal transmission.
The TBEN-L5-8IOL IO-Link masters communicate with the PLC via Profinet. The masters form a line topology via the integrated two-port switch of the IO-Link modules, so that only one Profinet line needs to be routed from access door to access door, which in turn saves wiring work.
The test areas are equipped with K50 indicators from Banner Engineering, which are actuated by the PLC to change their color. Unlike conventional color signal indicators in a rod design, one indicator per entrance door is therefore sufficient. Programming need not be limited to the selection of a single color. The LEDs in the light can be controlled individually. The control units were equipped with indicators with a sound function, so that 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 the processes through manual procedures. The complete traceability of each action is ensured throughout.
All entrances to the test room are reliably secured via Turck's RFID solution so that only authorized persons are granted access.