Fetch / Write S5 to S7

russg

Member
Join Date
Aug 2012
Location
UK
Posts
275
Hi guys,

I'm wanting to set up a fetch / write on a s5 and s7. But i'm struggling to work out which i should use, if not both? I want to share DB10 on both the s5 and s7, and if either of the PLC writes to it, this will be instantly shared. Can someone please give me a brief run down of the fetch and write, and which I should use?

For example, if I set up a fetch-passive on the S7 using iso transport, do i then set up a read-active on the S5 side? And will this only read, or can it write from the s5 to the s7 too?

Thanks
 

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