Under OPC Connections select Servers and then select “Create new OPC Server Connection.” Choose the OPC-DA COM Connection option and then select whether you want to make a local connection or if the OPC server. Navigate to the Ignition Gateway Configuration section (i.e. Setting up and troubleshooting OPC-COM connections.The software of OPC client is any program that requires joining to the hardware, for example an HMI. The server of OPC is a program software that translates the protocol of hardware communication applied by a PLC into the protocol of OPC. OPC is executed in pairs of server or client. But the client can also instruct the Server to send updates when such comes in to the server. Once the server gets a request it answers to that and then goes back into wait state. OPC is a Client/Server based communication which means that you have one or more servers that waits for several Clients to make requests. Additionally, you will have to program an OPC Server for you to obtain the data you need. For example, setting up an OPC Server/Client for Allen Bradley's Controllogix and CompactLogix PLCs requires an RS-Linx Gateway license. Some manufacturers design unique OPC Servers for their PLCs while others rely on third-party providers.
SERVIDOR OPC KEPSERVEREX DRIVERS
Kepware is an OPC Server product that acts as the bridge between devices (PLCs / DCS / CNC / Database, etc.) and clients (HMI software, Scada software, etc.) KepserverEX is their flagship product and offers device drivers for many of today's control manufacturers.