Ⅰ. Introduction
Now SIEMENS PLC has released new firmware version, it is V4.0, in this version, plc contain new protect method, so many HMIs can’t communicate with it by old setting. Please view the following content to change some settings.
Ⅱ. Setting in WECON HMI
The setting in WECON HMI is same as before, select right protocol and communcation paratemers.
Ⅲ. Setting in SIEMENS PLC
- Right-click on the PLC Project, press [Properties].
- Select [Protection], check [Permit access with PUT / GET communication from remote partner (PLC, HMI, OPC, …)]
