Users manual

xviii
SCADA 3000 User’s Manual
Setting Up Gauges .................................................................................................14-25
Setting Up the Strip Chart ......................................................................................14-26
Placing Audio and Video Elements on the Palette .....................................................14-28
Playing an Audio or Video Message .......................................................................14-28
Placing Dynamic Elements on the Palette .................................................................14-29
Real-Time Output Control ......................................................................................14-31
Saving the Real-Time Screen .....................................................................................14-32
Loading A Real-time Screen for Editing .................................................................14-32
Running the Real-Time Screen ............................................................................... 14-32
Chapter 15: LADDER LOGIC PROGRAMMING ..................................... 15-1
Rules/Conventions of Ladder Logic Programming ......................................................15-2
Description of Ladder Elements and Functions ...........................................................15-2
XIC Instruction (Examine if Closed) ...................................................................15-3
XIO Instruction (Examine if Open) ..................................................................... 15-3
OTE Instruction (Output Energize) .....................................................................15-4
OTL Instruction (Output Latch) ....................................................................... 15-4
OTU (Output Unlatch) ......................................................................................15-4
OSR (One-Shot Rising) ......................................................................................15-5
TON (Timer On-Delay) ...................................................................................... 15-5
TOF (Timer Off-Delay) ....................................................................................... 15-6
RTO (Retentive Timer) ........................................................................................ 15-7
CTU (Count-Up Counter) ..................................................................................15-8
CTD (Count-Down Counter) .............................................................................. 15-9
RES (RESET) .....................................................................................................15-10
MOV (Move) ....................................................................................................15-11
COMPARISON INSTRUCTIONS ...........................................................................15-11
NEQ (NOT EQUAL) ........................................................................................15-12
LES (LESS THAN) .............................................................................................15-12
LEQ (LESS THAN OR EQUAL) ......................................................................... 15-13
GRT (GREATER THAN) ....................................................................................15-13
GEQ (GREATER THAN OR EQUAL) ................................................................15-14
Math Instructions ..................................................................................................15-14
ADD (Addition) ...............................................................................................15-14
SUB (Subtraction) .............................................................................................15-15
MULT (Multiplication) ......................................................................................15-15
DIV (Division)...................................................................................................15-16
POW (A to the Power of B) ............................................................................... 15-16
Ladder Logic Program Development ........................................................................15-17
Conserving Memory with Windows 95 and 98 ......................................................15-17
Starting a new Ladder Program ................................................................................15-17