Table of Contents
What is OPC driver?
An OPC Driver is a software application, that has been written to one of the OPC Specifications. An OPC Driver will respond to requests, and provide data to one or more OPC Clients in a standard, consistent manner.
What is DP in PROFIBUS?
PROFIBUS DP stands for Decentralized Periphery. The name refers to the I/O connections, which use completely decentralized high-speed serial communication to connect to a central controller.
What is PROFIBUS PA and DP?
PROFIBUS PA is a variant of PROFIBUS DP that is specially designed for improvement and replacement of conventional systems such as 4-20 mA and HART in process automation. In contrast to PROFIBUS DP, data and power supply are transported over the same two wires and there is an explosion proof option available.
What are OPC servers?
OPC is a client/server technology. One application acts as the server providing data, and the other acts as a client using data. OPC is a widely accepted industrial communication standard that enables the exchange of data between multi-vendor devices and control applications without any proprietary restrictions.
How does OPC server work?
The OPC server is a program that translates the hardware communication protocol used by a PLC into the OPC protocol. The OPC client software is a program that connects to the hardware, such as an HMI. The OPC client communicates with the OPC server to receive data or send commands to the hardware.
What is difference between PROFIBUS and Profibus DP?
What is a Profibus DP?
What is DP in PLC?
The DP suffix refers to “Decentralized Periphery”, which is used to describe distributed I/O devices connected via a fast serial data link with a central controller. To contrast, a programmable logic controller (PLC) normally has its input/output channels arranged centrally.
What does OPC server stand for?
Open Platform Communications
Open Platform Communications (OPC) is an interoperability standard for the secure exchange of industrial automation data. It is designed to be platform-dependent so devices from different vendors can exchange information.
How do OPC servers work?
How does Profibus DP work?
The PROFIBUS DP network is a multi-master token network – that means when there are two or more masters in the system, a token giving the right to talk to the field devices is passed from master to master, and each gets a share of the communication time.
What are the advantages of using Profibus DP?
User benefits are ease of use and flexibility. The single communication protocol enables fully integated solutions of continuous as well as discrete and safety-related processes to run on the same bus. This eliminates the need for separate systems and allows hybrid automation.
What is DP in Siemens?
DP stands for “Decentralized Peripherals”
What OPC interfaces are available over OPC for PROFIBUS?
The SIMATIC NET OPC servers offer the two interfaces OPC UA and classic OPC for PROFIBUS. The following communications interfaces are available over OPC for PROFIBUS:
Can I migrate to the new OPC UA standard?
Smooth migration to the new OPC UA standard is easily possible; this offers further value added such as security. The SIMATIC NET OPC servers offer the two interfaces OPC UA and classic OPC for PROFIBUS. The following communications interfaces are available over OPC for PROFIBUS:
What are the advantages of OPC servers?
Easy handling and cost effective since the appropriate OPC servers are included in the scope of supply of the respective communication software OPC (Openness, Productivity & Collaboration) is a standardized, open, and vendor-independent interface that is widely used in automation.
What is the difference between Classic OPC and OPC UA?
A fundamental distinction is made between the classic OPC and its consistent further development OPC UA (Unified Architecture). Smooth migration to the new OPC UA standard is easily possible; this offers further value added such as security.