Rockwell-automation 1794-ID2 U.MNL INCREMENTAL ENCODER Instrukcja Użytkownika Pobierz pdf (Strona 54)

5–2 How Communication Takes Place and I/O Image Table Mapping with the DeviceNet Adapter

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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

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(*.

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

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*. -$#

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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