Honeywell UMC800 Reference Guide

Function Blocks
3/99 Function Block Reference Guide 5
2. Function Blocks
2.1 Introduction
While you can determine the function of many blocks just from their labels and Input/output abbreviations,
the purpose of others may be a complete mystery. This section is designed to familiarize you with function
blocks in general and provide detailed reference data for each block.
In this section
Refer to
Table 2-1
for a listing of each function block type and respective reference page.
Table 2-1 Function Block Look-up Table
Function Block Type Identification Label See Subsection
ABS
(Absolute Value)
2.2
ADD
(Addition 2 Inputs
)
2.3
4ADD
(Addition 4 Inputs)
2.4
AI
(Analog Input)
2.5
ALM
(Analog Alarm)
2.6
AMB
(Auto/Manual Bias)
2.7
2AND
(AND - 2 Inputs)
2.8
4AND
(AND - 4 Inputs)
2.9
8AND
(AND - 8 Inputs)
2.10
AO
(Analog Output)
2.11
ASYS
(Alarm System Monitor)
2.12
BCD
(Binary Coded Decimal Translator)
2.13
BOOL
(Free Form Logic)
2.14
CARB
(Carbon Potential)
2.15
CMPR
(Comparison)
2.16
DCMP
(Deviation Compare)
2.17
DEWP
(Dewpoint)
2.18
DI
(Digital Input)
2.19
DIV
(Division)
2.20
DO
(Digital Output)
2.21
DSW
(Digital Switch)
2.22
FGEN
(Function Generator
)
2.23
FSS
(Four-Selector Switch)
2.24
FSYS
(System Monitor-Fast Logic)
2.25
HLLM
(High-Low Limiter)
2.26
Continued next page

Honeywell UMC800 Specifications

General

Brand	Honeywell
Model	UMC800
Category	Controller
Language	English