The configuration word settings are represented in binary
form by the LED’s above the input and output keys. Each
feature of the configuration word can be set by turning one or
more bits (input or output keys) on or off. If a bit is on, its
LED is illuminated; if a bit is off, its LED is off. Some fea-
tures, such as setting the SBC polling range or the control
panel number scan configuration, require setting multiple
bits. For example, if figure 2.3 were to show that the SBC
Poll Limit was set to 10, bits 8-12 would be set as 10010 (bit 8
on (1), bit 9 off (0), bit 10 off (0), bit 11 on (1), bit 12 off (0)).
To set the configuration word from an X/Y Control Panel:
1.
Place the distribution matrix in program mode by holding
down <Change> and pressing <Preset>; the Change and
Preset LED’s illuminate.
2.
Set the bits of the desired feature(s) by pushing the keys
(in no particular order). Sections 2.6.1 - 2.6.10 explain
each of the features and how to set the bits to achieve the
desired results.
3.
When you are ready to exit program mode and save the
new configuration word, press <Take>; the changes take
effect and the distribution matrix returns to status mode.
4.
To exit program mode without storing a new
configuration, press <Cancel>.
2-11
Operating the Distribution Matrix
