I need urgent help to solve the following problem:
We use simatic s7 300 and visual basic HMI . The PLC exchanged data with HMI through OPC server. The strange thing is whenever any parameter value operator change then it shows in HMI 100 times and not changed in PLC those parameter. But real time value(which are sensor value) are showing correct. We check network, opc server and found ok.
Could anyone have any idea to get me some hints.
We use simatic s7 300 and visual basic HMI . The PLC exchanged data with HMI through OPC server. The strange thing is whenever any parameter value operator change then it shows in HMI 100 times and not changed in PLC those parameter. But real time value(which are sensor value) are showing correct. We check network, opc server and found ok.
Could anyone have any idea to get me some hints.