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Optimising productivity for warehouse packing

10 June 2018

An industrial edge computer is being used in warehouse packing operations to help optimise workflow.

In a traditional warehouse packing operation workers need to ork with a variety of stand-alone computer control devices.  With edge computing technology these actions can be combined.
In a traditional warehouse packing operation workers need to ork with a variety of stand-alone computer control devices. With edge computing technology these actions can be combined.



Having proven its value in trials at Hartings warehouse packing facility in the company’s connector manufacturing plant at Espelkamp in Germany, the MICA modular industrial edge computer is now at the heart of a system for workflow optimisation at warehouse packing stations, bringing the benefits of process optimisation for increased productivity as well as integrating incompatible hardware and software and simplifying the jobs of the packing operatives.

The system requires only minimal outlay for fast return on investment (ROI) and ongoing reductions in operating costs.

The system is designed to address the challenges typically encountered where a customer order requires a variety of separate component parts to be packed and shipped in one or more cartons. Previously, packers might have to interface with a range of different stand-alone computer control devices, such as a weighing scale, a PLC that controls the packaging machine, and a printer for the labelling of the packaging films. In such a configuration, the employee would have to operate all these devices individually, enter the values manually into the management ERP system, and manually adapt work instructions.

By integrating a MICA edge computer at the packing station, all these actions are combined automatically executing the intermediate steps and transferring all the data from one system to the next and into the ERP system.

For example, using SAP data transfer via OPC UA to SAP MII (SAP for Manufacturing Integration & Intelligence), the work instruction can be transferred from ERP via Remote Function Call (RFC), transferred to MICA via JSON, translated in a Simatic STEP 7 controller and loaded into the PLC.

Reducing manual work steps
The packer now has only one user interface. The number of manual work steps is reduced by the integration, and the packaging process is significantly accelerated. By utilising other features of the modular MICA device, additional KPIs and extra processes can be captured through its operating software. For example, by integrating an RFID antenna function module with dual antenna ports, it becomes possible to identify both the tagged transport containers of packed parts and the employee’s personal ID card. The MICA computer can automatically log on and assign the packed parts to the employee’s unique identification record. As a result, the packing process information can be integrated directly into a piecework payment system.

By adding a single MICA device into the packaging process at a typical packing station, it becomes possible to reduce the overall process time by a factor of at least ten, offering major productivity improvements.

Three key benefits of the system can be summarised as follows:
• Increased productivity at the packing station: Several separate operations that were previously carried out independently and manually are now automated and integrated by the MICA computer.
• Integration of incompatible hardware and software: The open software architecture of MICA allows communication between incompatible devices and integrates them into the factory ERP/MES system.
• Simplification of the packer’s workstation job: Several operations that were previously carried out separately and manually are now integrated and automated, leading to a tenfold improvement in productivity.

Further benefits of the MICA system result come from the fact that the hardware is compact and meets IP67 environmental protection standards, allowing it to be located in harsh factory and warehouse environments. In addition, the modular hardware design allows further enhancements and modifications to meeting changing application requirements.


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