Function Blocks
Function Block Reference Guide 3/99190
2.61 SPS Function Block
Description
The
SPS
label stands for
Master
Setpoint Scheduler
.
This block is part of the
Setpoint Scheduler
category. It looks like this graphically on the Control Builder.
Overview
The objective of the Setpoint scheduler is to provide a sequence of multiple setpoint outputs (both analog
and digital) which are referenced to a common time base. Five setpoint schedule block types will be
implemented:
•
Master Setpoint Scheduler Block (SPS – this section)
•
Auxiliary Setpoint Block (SPSA – Subsection 2.62)
•
Digital Event Block (SPEV – Subsection 2.59)
•
State Switch Block (STSW – Subsection 2.65)
•
State Flags Block (STFL – Subsection 2.64)
A suite of Setpoint Scheduler blocks is comprised of one master Setpoint Block (required) and optionally,
one Digital Event, one Auxiliary Setpoint, one State Switch, and/or one State Flags block.
See
Figure 2-68
for a Setpoint Scheduler Function Block Suite.
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