Modicon TSX micro bit sum query

Baptie

Member
B
Join Date
Jan 2012
Location
Aurshire
Posts
4
Pure mind boggled at this one, can’t seem to figure it out.

NO contact with - %M130(%MW11)

How is this possible?

Is the %MW11 0 it’s logic 0, 1 it’s a logic 1?
 
It's a while since I worked on TSX but I think this is an offset so if the value of %MW11 is 0 then the value of %M130 is used . If % MW11 is 1 then the value of %M131 is used and so on . Other contributers will correct me if I'm wrong .
Paul
 
it is indirect addressing.
It should not be less than 0, it will cause inder error warning on program side.
(it was system bit 16 or 18 maybe and you can select with another system bit if CPU is halted or stays at run)
 

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