ABB SM2000 User Manual Supplement page 3

CONTENTS
1 INTRODUCTION ............................................................. 1
2 MATH CONFIGURATION ............................................... 2
2.1 Math Block Description .......................................... 2
2.2 Typical Math Block ................................................. 2
2.3 Operators ............................................................... 2
2.4 Constants .............................................................. 2
2.5 Analog Sources ...................................................... 3
2.6 Digital Sources ....................................................... 3
2.7 Functions ............................................................... 3
2.8 Creating Math Blocks ............................................. 4
2.9 Standard Functions ................................................ 8
2.9.1 Trigonometric Functions ........................... 8
2.9.2 Statistical Functions .................................. 8
2.9.3 Logarithmic Functions .............................. 8
2.9.4 Relative Humidity ...................................... 8
2.9.5 Sterilization Fvalue Calculation ................ 10
2.9.6 Switch Functions .................................... 12
2.9.7 Absolute Value Function ......................... 12
2.10 Application Examples ........................................... 12
2.10.1 Liquid Flow ............................................. 12
2.10.2 Ideal Gas Flow ........................................ 14
3 LOGIC CONFIGURATION ............................................ 15
3.1 Logic Equation Description ................................... 15
3.2 Worked Example – Reservoir Level Control .......... 15
3.3 Creating Logic Equations ..................................... 16
4 DIAGNOSTICS .............................................................. 17
4.1 Introduction .......................................................... 17
1 INTRODUCTION
This supplement details the programming and operation of the
math and logic equations option on the Videographic Chart
Recorder.
The instructions contained herein should be read in conjunction
with the instrument User Guide (IM/SM2000 issue 2 or later).
Instruments with the optional math and logic equations
functionality are identified by the appearance of the respective
icons in the main Configuration window – see Fig. 1.1.
For information on accessing Configuration mode, refer to
Section 4 of the User Guide.
Fig. 1.1 Math and Logic Icons
1