when we go online in the simatic hardware configuration, we have an et200 station IM153-2 redundant, which has a small red line at its top left corner. module information is ok, diagnostic is without errors. all leds are green. 

what does this red line mean? 

note that this et200 window in hw config, does not show any module, probably because we have some missing software packages, like the used for safety modules (one is actually installed).  

Hello Ziemens,

Do you have S7-Distribured Safety installed? And S7 F-Configuration package?

Best regards,

Wizard

no, i don't.  

where can i download them?

Hello Ziemens,

Here is a link for S7 F-Configuration Pack:

Download of the F-Configuration-Pack

But the S7-Distributed safety software must be ordered. (You will receive software including a license key)

S7 Distributed Safety V5.4 Released for Delivery

Best regards,

Wizard