Allen-Bradley 1734-IB8S, Инструкция по установке и эксплуатации, Страница: 91 / 156

Rockwell Automation Publication 1734-UM013C-EN-P - August 2010
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Configure the Module in a GuardLogix Controller
Chapter 6
5.
Assign the Input Delay Time, Off -> On (0…126 ms, in increments of
6 ms).
Filter time is for OFF to ON transition. Input must be HI after input delay
has elapsed before it is set logic 1. This delay time is configured per channel
with each channel specifically tuned to match the characteristics of the
field device, for maximum performance.
6. Assign the Input Delay Time, Off -> On (0…126 ms, in increments of
6 ms).
Filter time is ON to OFF transition. Input must be LO after input delay
has elapsed before it is set logic 0. This delay time is configured per channel
with each channel specifically tuned to match the characteristics of the
field device, for maximum performance.
7.
From the Input Error Latch Time box, enter the time the module holds an
error to make sure the controller can detect it (0…65,530 ms, in increments
of 10 ms - default 1000 ms).
This provides you more reliable diagnostics and enhances the chances that
a nuisance error is detected. The purpose for latching input errors is to
make sure that intermittent faults that may exist only for a few
milliseconds are latched long enough to be read by the controller. The
amount of time to latch the errors should be based on the RPI, the safety
task watchdog, and other application-specific variables.
8.
Click Apply.