Film on S7 300 card

Hello everyone,

I have seen on the S7 300 card (DI and DO modules) a greenish film but on the label but I don't know if it's an article that Siemens has or if it is was done purpose can you tell something? I tried to see in the upper right but I found for ET 200 L,B and S

Thanks

Carfo

Hello everyone,

I have seen on the S7 300 card (DI and DO modules) a greenish film but on the label but I don't know if it's an article that Siemens has or if it is was done purpose can you tell something? I tried to see in the upper right but I found for ET 200 L,B and S

Thanks

 Hello,

I use this, are transparent green

For S7 300 module 20 pin

6ES7392-2XY00-0AA0 - Industry Mall - Siemens

For S7 300 module 40 pin

Product Details - Industry Mall - Siemens WW

There is no photo to see but I think they are