Extensions to the pick-by-light system
Barcode scanners, RFID readers, scales, and label printers are often connected to a pick-by-light system as extensions. In this article, you will learn how these devices are connected to the system and what options and functions are available.
Functions of the extensions to a pick-by-light system
Additional devices are required for certain complex processes in a pick-by-light system. They are used in different ways and generally have the following functions:
- Manual and automatic activation of orders
- Recording serial numbers and batches
- Weight checks during order picking
- Creation of labels
Paperless picking does not necessarily mean that work is carried out completely without paper. The picking itself is actually paperless.
Activation of orders
Pick-by-light can be used for many purposes. These include: picking, sorting, assembly, packaging, etc. Orders are often activated by reading the barcode or RFID tag. Delivery notes, invoices, articles, or assembly instructions are very well suited for this purpose. The barcode or RFID tag contains the order number, article number, production number, or delivery note number.
The scanners or RFID readers send the data they read directly to the LUCA-Server, which is then responsible for activating the orders. The server prepares the data and then controls the individual pick-by-light compartment displays.
Recording of serial numbers and batches
The recording of serial numbers and batch checks are particularly common in order picking. Mobile handheld scanners are often used for this purpose.
In this case, the serial number of the devices or parts is recorded each time they are removed from the storage compartment and forwarded to the warehouse management system with the receipt of the removal. The forwarding of batches or even the comparison of the specified batches is also carried out during picking with pick-by-light.
Weight control in order picking
For perfect quality assurance, a weight check of the picked items can also be carried out directly during picking. At the start of picking, the tare weight of the carton or container is first recorded. With each item, the system checks the weight increase of the shipment. If the weight is correct, the next item can be picked.
However, this requires that the items are stable in weight and that the master data is correct. Weight control directly during picking increases quality, but has one disadvantage. It reduces picking performance. Learn more about this enhancement in a separate article on Pick-by-Weight.
label printer
Small label printers can also be connected to a pick-by-light system. Depending on the process and mode of operation, the system controls the direct creation of labels.
This can be used, for example, for labeling items or cardboard boxes. The order picker can also label them directly when folding the boxes manually.
Connection of expansion devices to the pick-by-light system
Depending on the device type, we have various options for connecting to the pick-by-light system.
Connection of wired handheld scanners
Wired scanners are often LUCA-Server directly to the LUCA-Server via a workstation PC or network. USB interfaces are often used on PCs. Direct connection of wired scanners to the network is often achieved by using ComServer. However, the RS232 interface is used here.
USB and RS232 devices can also be connected directly via the controllers of the pick-by-light system. A PC or ComServer is therefore not absolutely necessary for this.
Use of radio scanners
Radio scanners are often used in stationary pick-by-light systems. These mobile devices give employees more freedom of movement and flexibility at their workstations.
Modern wireless scanners have a direct WiFi connection to the network. Some models are equipped with charging stations with LAN, USB, or RS232, which in turn are connected to the pick-by-light system (as described above) like wired scanners.
RFID reader
Simple RFID readers are connected in a similar way to wired scanners. Instead of barcodes, RFID readers read information from RFID tags. Depending on the type of use and solution, items, order picking trolleys, or other labels can be read.
The interesting thing about RFID is that the tags can also be written to. This means that information is also transported directly with the tag. This application is particularly useful in production.
There are many models on the market that are suitable for this application. If you have any questions, please contact us. We will be happy to help you.
Connecting the scales
The scales are often very precise and are used in a stationary manner. This means that the scales can best be connected via PC, LAN, or ComServer.
Integration of label printers
Label printers are usually connected to the pick-by-light system via a pick-by-light controller, PC, or LAN. Mobile label printers (WiFi) can also be used without any problems. The LUCA-Server always controls the label printers.
Conclusion
The pick-by-light system can be expanded to include various other devices. Depending on the process and function, scanners, RFID readers, scales, and label printers can be connected. If necessary, we can also develop interfaces for special devices if we do not already have them available. Please contact us for more information.
