Implicit Exchange Objects
(Original Document)
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Faulty Module
The %Ir.m.MOD.ERR bit at status 1 indicates that the module situated in position r.m is faulty. The causes of the fault are given in the %MWr.m.MOD.2 internal word.
Faulty channel
The bit %Ir.m.c.ERR at status 1 indicates that channel i of the module situated in position r.m is faulty. The causes of the fault are given in the %MWr.m.c.2 internal word.