The Operator Datalogger delivers seamless integration with machines (through OPC and OPC UA standard) and a wide range of devices and equipment of the shopfloor, enabling a high degree data exchange during production process execution. Thanks to the use of the OPC standard, we can exchange messages with almost every PLC controller, not only machines but also other devices operating on the shop floor. Operator offers standardized integration – regardless of equipment vendor, which allows standardized visibility of production process execution across the whole enterprise on a global scale.
OEE – OPC – OPC UA – PLC – Machine Monitoring – Machine Status
The Operator Datalogger (ODL) is a Windows Service that is intended to run in the background on the computer hosting an OPC server. Its purpose is to create OPC / OPC UA subscriptions configured in the Operator Database. Based on these subscriptions the service will conduct reads and writes between the OPC Server and the Operator Database. As ODL runs independently of Operator, it can be installed on the OPC server – which should be installed “close” to PLC’s, while Operator runs on another computer within the same network. This is advantageous, as this does not give DCOM configuration issues that can be troublesome when connecting to an OPC / OPC UA server remotely.
The Operator Datalogger supports the following communications:
The ODL can run two subscription types – synchronous and asynchronous (SYNC / ASYNC).
The Operator DataLogger (ODL) is designed to take advantage of multithreaded design. This means that subscriptions are grouped, and each group is handled by a thread. Thus, the overhead introduced when e.g. multiple subscriptions are to be handled at the same time is minimized. The operating system ensures an even distribution of system resources to the threads. In the following illustrations each “job” is handled by its own dedicated thread.
OPC Unified Architecture (OPC UA) is a communication protocol designed to enable different types of industrial devices to communicate with each other.
The basis of OPC UA is OPC Data Access (OPCDA) and Universal Architecture for Data Access (UDA). The former provides an abstraction layer for data to provide a unified view of data, while the latter provides a mechanism for transferring that data.
OPC Unified Architecture (OPC UA) is a communication protocol developed by the OPC Foundation that can be used for machine monitoring. This protocol uses different data formats to provide a universal way for machines and devices to communicate in a production environment. The goal of this protocol is to create an interoperability layer that allows communication between different types of equipment with minimal human intervention.
OPC UA is an open, scalable, secure industrial automation platform that facilitates the interoperability of plant floor operations. The OPC UA specification defines a set of common interfaces to synchronize industrial data between all levels of automation. It enables devices to communicate with one another across disparate networks, providing a single view of processes and equipment for operators and providers alike.
OPC UA provides all kinds of networks for different purposes. The following are the different types:
– Device networks – these are used to connect devices together in order to transfer data between them. They are typically low bandwidth networks that operate at speeds up to 1 Mbit/s
– Process networks – these are used communicate information about production processes between controllers and other control systems
– Device server network – this is used for installing
A PLC (Programmable Logic Controller) is an automated system that controls an industrial process through a physical interface. With this device, a person does not have to be around to do the work. It automatically manages production without the need for human interaction. One of the biggest advantages of using this type of system is that it speeds up production while giving people more time for other tasks within the company or organization. In addition to speeding up production, there are also various ways in which these systems can help your business improve the overall efficiency of producing goods or services.
The name Programmable Logic Controller comes from the fact that the controller consists of programmable logic in the form of code that is stored in its non-volatile memory. For an engineer or technician, a PLC is an essential tool for daily work. It provides safety, accuracy and efficiency for manufacturing plants.
Programmable logic controller (PLC) is a computerized device that control industrial processes in factories, power companies, water and sewage treatment plants.
The PLC is programmed to receive data from various sensors and use the data to determine the appropriate control action for a given situation. By programming instructions in advance, they can save time when compared to human decision-making.
Programmable logic controllers are widely used in industries like mining, food processing, pharmaceuticals and pulp & paper.