After defining the customer’s requirements, a low-frequency RFID system was chosen. IPC02-16 and IPC11-12 transponders were flush mounted into the metal of the conveyor hooks. In a second application within the plant, these transponders are used on Christmas trees—racks that are used to deliver pieces of meat in cooling trucks. Here, the transponders are used as clips that can be detached from the respective Christmas tree right before shipping and then used again. The third location where RFID transponders are utilized is on the plastic transport boxes that travel on roller conveyors. They transport the single meat cuts to additional processing points and are equipped with IPC11-50CD transponders. These transponders are embedded in the bottom of the box and can be read at a distance up to 80 mm.
When it comes to reading information, IPT-FP RFID read heads were used. Pepperl+Fuchs offers enclosures for these devices that are made of corrosion-resistant steel and are especially suitable for the harsh requirements of the meat processing industry. Initially, PROFIBUS was used as the interface. Over time, the process changed to a PROFINET interface. As Pepperl+Fuchs offers products that interface with all common industrial fieldbus types and communication protocols, this was no problem. Today, IPH-FP7V4A RFID read/write heads in combination with the IDENTControl interface unit are being applied as well.