A-25
Addresses for Pseudo Points
Overview
There are three types of pseudo points that exist in every system. They include digital, analog,
and list pseudos. Each of these types may be referenced in Custom Control in both the input
and output sides of an equation. Reserved system pseudo points are used to indicate system
trouble or alarm indications, control diagnostics or other system functions, and to
communicate information between the AUTOPULSE Z-28 Master and SMPL. Some pseudos
are set by the system and are read only to the user. Other pseudos are either set from SMPL or
from the front panel as a cue for the system to perform some operation.
Digital Pseudo Points
Every AUTOPULSE Z-28 system has two digital pseudo "cards" at addresses 18 and 19. The
first card is reserved for system pseudo points while the second is available to the user. Each
contains 75 digital pseudo points, which may be programmed as follows:
Each system digital pseudo point falls into one of the following categories:
The system digital pseudo card in the AUTOPULSE Z-28 system is located at address 18. It
contains a total of 75 reserved system pseudo points that cannot be edited. The following table
lists the system pseudo points. The type field denotes which class (see above) the point falls
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into, and what its type is (U=UTIL, F=FIRE, T=TROUBLE, S=SUPERVISORY).
Table A-11. Digital Pseudo Points
Type
Description
UTILITY
Utility point (ON/OFF - no acknowledge required)
ALARM
Fire alarm point. Turning the point on causes an ALARM
condition.
SUPV
Supervisory point.
TROUBLE
Trouble point.
Table A-12. Pseudo Point Categories
Class
Description
R
Point is controlled by the AUTOPULSE Z-28 master and is read only to
the end user.
RW
Point is controlled by the AUTOPULSE Z-28 master, but may also be
controlled by the end user (front panel or SMPL).
W
Point is controlled by the end user and is read by the AUTOPULSE Z-
28 Master in order to accomplish some function or operation.
