OPC Interface Applications
OLE for Process Control. OPC is a software interface standard that allows Windows programs to communicate with industrial hardware devices.
OPC is implemented in server/client pairs. The OPC server is a software program that converts the hardware communication protocol used by a
PLC into the OPC protocol. We have developed many Interface Applications using OPC Protocols. Below are the Types of OPC's used in Projects:
OPC DA (OPC Data Access) :
It is an OPC Foundation specification that defines how real-time data can be transferred between a data source and a data sink (for example: a PLC and an HMI) without either of them having to know each other's native protocol.
OPC UA (OPC Unified Architecture) :
It is a machine to machine communication protocol for industrial automation developed by the OPC Foundation.
OPC HDA (OPC Historical Data Access) :
It is used to Analyze Historical processed data.
OPC AE (OPC Alarm & Events) :
It's the exchange of alarm and event type message information, as well as variable states and state management.