Function Blocks
3/99 Function Block Reference Guide 185
2.60 SPP Function Block,
continued
2.60.1 Example 1 - PID with Setpoint Programmer and Guaranteed Soak
Guaranteed Soak is configured as part of the SET POINT
PROFILE configuration using the Control Builder Software or
from the UDC 800 Operator Interface, Set Point profile EDIT
/DETAIL display. This can be applied to all soaks, selected
soaks or all segments.
This example uses the loop PV as the deviation check input
vs. the SP output. The user has the option of using 3 more
PV’s for expanding the deviation check requiring all inputs to
be within the band before the Hold is released.
SP
Guar. Soak Hi
Guar Soak Lo
Deviation Soak
Band
PV1
Up to 4 Deviation Check Inputs
PV2 PV3
Aux PV
Figure 2-63
PID with Setpoint Programmer and Guaranteed Soak
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