S7 300 DO module LED status

naga

Dear all,

Could someboday pl. confirm whether S7300 Digital output module will show fault "SF" RED ON if output fuses are disconnected. I am facing this problem with one of the systems.
6ES7 322-8BH01-0AB0 24 V DC with 16 channels. Where as surprising CPU diagnostic showing HW fault and needs IO card replacement.

Regards,
Vijay

Hello Vijay,

This kind of DO is possible to detect wire break even when the output signal is "0". And I think, depending from electrical connection is possible to receive SF when disconect wires from fuses. Of course you should enable in hardware configuration wire break diagnostic. You could read more about diagnostic for this type of DO in follow link - SM322-8BH01 Digital Output Module with Diagnostics.

Hope this will helps.

Best regards,

Hristo Mihalev