User`s guide

Function Blocks
Function Block Categories and Types
Release E UMC800 Control Builder User’s Guide 55
1/01
Function Block Categories and Types
Introduction
Grouped function blocks
To simplify function block selection, the function block types are grouped into separate categories based on
the general Control Builder operation they support. The given type of function block identifies the specific
function to be performed.
Categories of function blocks
Table 14 lists the function block categories in the order they appear in the Function Block Library Tree on
the Control Builder Main Window.
Table 15 through Table 27 list the block type, description, and the graphic form.
REFERENCE
The reference data for each block can be found in the UMC800 Control Builder Function
Block Reference Guide Document # 51-52-25-64.
Table 14 Categories of function block
Category Description
Loops
Includes function block types for building control loops. Multiple control algorithms are
provided to minimize the number of prompts and complexity of control loop configurations.
(For examples of Loop applications, refer to Appendix B – Loop Application
Examples.)
SP Program
Includes function block types for adding Setpoint Programs including program
synchronization and event outputs plus, Recipe selections.
Setpoint Scheduler
Includes a suite of setpoint scheduler blocks that can be configured for multi-setpoint
control.
Logic
Includes function block types for initiating Boolean logic operations plus Frequency and
Pulse Inputs, pushbutton and four selector blocks for operator indicated actions
(For examples of Logic Applications, refer to Appendix A – Logic Application
Examples.)
Fast Logic
Same as Logic except faster execution time.
Counters/Timers
Includes function block types for timers, and Up/Down counter.
Math
Includes function block types for Mathematical operations.
Calculations
Includes function block types for making special control Calculations.
Alarm/Monitor
Includes function block types for monitoring High, Low, or Deviation Alarm conditions.
Signal Selectors
Includes function block types for signal direction and monitoring
Auxiliary
Includes function block types for performing Auxiliary control functions, such as Lead-Lag,
High-Low Limiter, Hand/Off/Auto switches, Device Control, etc.
Communications
Includes function blocks that will provide Modbus interface to the controller.
Other Items
Includes analog and digital variables, Text annotation, connectors, soft wires, and signal
tag items.