Hi, I have a problem with two IM153-2 6ES7153-2BA00-0XB0, each IM with four FM355C 6ES7355-0VH10-0AE0, . Both were working fine when power off, in restart both IM have the SF and BF(blinking) leds on. In HW Config both components are not seing in the bus when I get online. In the proprties of the IM no redundancy or isochronous properties are enabled.

Which IM could I use to replace the original one, can I use a IM153-1? What else should I need to check before changing the IM.

Thanks.

hi syd_b,

the 6ES7153-2BA00-0XB0 is very old. the 3rd successor is released in 2015:

Revised Interface Module IM153-2 for ET 200M

between every predecessor were a fully compatibility. So I guess it should work to just change the HW.

hope this helps,

regards,