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Thanks for your reply.
Therefore it means that this 250 Ohm which is mentioned in the document is built by this shunt sticks and not by the module itself.
Is it right?
In our system this shunt stick TY805 has been used for AI880.
AI880 is other story, you didn't mention that in your question, AI880 needs external shunt sticks, as it is described in the manual. Also a specified there TU's. That are HI modules !
AI810 for example don't need such - there are internal shunt resistors, protected by PTC.
Thanks a lot for your update.
Source: 3BSE020924-600 A