Rockwell Automation 2755 Enhanced Decoder Series B User Manual
Page 120
8–7
Configuration: Extended Match Table and Counters
Publication 2755-833
Loading
Field Type Options
Edit Numeric
0 through 9, X
0
In the most general sense, loading provides a means to distribute the
response to incoming data among the eight discrete outputs. Loading
instructs the decoder to respond to a match by activating the discrete
corresponding to the next column number in which a nonzero value
appears.
The default value of 0 disables loading for a given discrete. Values
include 0 through 9, and X.
Activation occurs from left to right in a “round-robin” fashion.
During operation, a “greater than” symbol (>) will appear on the
terminal screen to indicate the next discrete scheduled to fire. Any
output set to “X” will fire every time a match is successful, in
addition to the appropriate “round-robin” output.
Note: The duration of Extended Match Code Table outputs are
established in the Primary Match Code Table. See below.
Given a situation where discretes 5, 6, and 8 are activated with
loading values of 1, 3, and 1, the table below shows what would
happen during three complete cycles (15 total matches). In the
example below, a bold horizontal line marks the beginning of each
new cycle.