Rockwell-automation 1794-ID2 U.MNL INCREMENTAL ENCODER Manuel d'utilisateur Page 54

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5–2 How Communication Takes Place and I/O Image Table Mapping with the DeviceNet Adapter
/!('" .'*) 3  1 
Adapter Input Status Word
The input status word consists of:
I/O module fault bits – 1 status bit for each slot
node address changed – 1 bit
I/O status – 1 bit
'.  .&,*/%& 
 *#/($  /(. '.-
*#$ ##,$-- & )%$# '.
(*.
(*.
(*.
(*.
(*.
(*.
(*.
(*.
 . .$ '.
*. -$#
The adapter input status word bit descriptions are shown in the
following table.
Bit Description Bit Explanation
&'- !'. '- -$.  0&$) ) $,,*, '- #$.$".$# ') -(*. +*-'.'*) 
&'- !'. '- -$.  0&$) ) $,,*, '- #$.$".$# ') -(*. +*-'.'*) 
&'- !'. '- -$.  0&$) ) $,,*, '- #$.$".$# ') -(*. +*-'.'*) 
 *#/($  /(.
&'- !'. '- -$.  0&$) ) $,,*, '- #$.$".$# ') -(*. +*-'.'*) 
 *#/($  /(.
&'- !'. '- -$.  0&$) ) $,,*, '- #$.$".$# ') -(*. +*-'.'*) 
&'- !'. '- -$.  0&$) ) $,,*, '- #$.$".$# ') -(*. +*-'.'*) 
&'- !'. '- -$.  0&$) ) $,,*, '- #$.$".$# ') -(*. +*-'.'*) 
&'- !'. '- -$.  0&$) ) $,,*, '- #$.$".$# ') -(*. +*-'.'*) 
*#$ ##,$-- & )%$#
&'- !'. '- -$.  0&$) .&$ )*#$ ##,$-- -0'."& -$..')% & - !$$)
"& )%$# -')"$ +*0$, /+
 . .$
'.'#($
'.,/)
 .&,/  *. /-$# -$). - 2$,*$-
Possible causes for an I/O Module Fault are:
transmission errors on the Flex I/O backplane
a failed module
a module removed from its terminal base
incorrect module inserted in a slot position
the slot is empty
The node address changed bit is set when the node address switch
setting has been changed since power up. The new node address does
not take affect until the adapter has been powered down and then
powered back up.
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