We are considering adoptingSIEMENS 7.5 SP2 Asia Versionand planning to implement aServer-Client architecture, where four clients will be installed ontouch PCs in an explosion-proof area.

However, we understand that theAsia version of WINCC requires a DONGLE for license verification.

In this case, theUSB port of the explosion-proof PC must be used, but Korean explosion-proof PC manufacturersdo not recommendthis approach.

We would like to knowhow to resolve this issue.

Additionally, if the USB DONGLEmust be used, we would like to confirm whether it complies withIEC/EN 60079-11standards.

We appreciate your support.

Thank you.

Denver Engineering

In this case, theUSB port of the explosion-proof PC must be used, but Korean explosion-proof PC manufacturersdo not recommendthis approach.

so they sell explosion proof PC with USB slot you shouldn't use 

I ddin't test it with Siemens Dongles, but there are a lot of network dongle solutions, like USB Dongleserver