Sps Setpoint Scheduler Function Block - Honeywell HC900 Reference Manual

SPS Setpoint Scheduler Function Block

Description
The SPS label stands for Master Setpoint Scheduler .
This block is part of the Setpoint Scheduler category.
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)
Auxiliary Setpoint Block (SPSA)
Digital Event Block (SPEV)
State Switch Block (STSW)
State Flags Block (STFL)
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.
SPS Block Function
The Master (SPS) block supports up to 8 ramp or soak outputs operating on a common time base. It accepts
one PV for each setpoint. Setpoint guarantee is provided for the master (SPS) block setpoints with a single
symmetrical value for each setpoint output. You can assign a failsafe value for each setpoint.
Revision 11
2/07
HC900 Hybrid Control Designer Function Block Reference Guide
Function Blocks
SPS Setpoint Scheduler Function Block
353