Rockwell-automation 1771-ASB/E Remote I/O Adapter User Manual Manual de usuario descargar pdf (Pagina 18)

2–4 Installing Your Module

-%$,$('    *-*0 

link response - unrestricted or series B emulation.

Certain scanner modules with multiple communication ports

require a delay in the link turnaround time to allow the central

processing unit (CPU) in the scanner sufficient time to service

all communication ports. Without this delay, some incoming

information may be missed while the scanner is servicing

another port. This results in multiple communication retries.

To provide the necessary delay, set the link response switch

(position 5, switch S2) to the ON position.

Scanner modules which require a delay are:

Programmable Controller Scanner Module

1 1

1

1 1

1





1





1

• noise immunity – enables backplane retries to occur when

noise is detected on the I/O rack backplane. This feature is

enabled when the switch is off. Do not use this switch position

as a substitute for improper noise suppression.

Refer to the Table below for Figure and page numbers of switch

settings for each processor family.

S1 and S2 Switch Settings for: Refer to:

1 !&$%0 )*( ++(* $"-*  )" 

1 !&$%0 )*( ++(* $"-*  )" 

1 !&$%0  ' (',*(%("$/ )*( ++(*+

.$,#(-, (&)% & ',*0 

$"-*  )" 

1 !&$%0  ' (',*(%("$/ )*( ++(* .$,#

(&)% & ',*0 

$"-*  )" 

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Rockwell-automation 1771-ASB/E Remote I/O Adapter User Manual Manual de usuario Pagina 18