Program syntax

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bus object

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Program syntax

Program structure

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Task syntax

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Ladder routine syntax

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Rungs

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Add-On Instruction syntax

Add-On Instruction structure

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Add-On Instruction routine structure

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Program parameter connection syntax

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Define a new Add-On Instruction

Floating Point Values

Updated instruction mnemonics

Duplicate destructive bit detection

Use duplicate destructive bit detection

Instruction set

Advanced Math Instructions

Log Base 10 (LOG)

Natural Log (LN)

X to the Power of Y (EXPT)

Array (File)/Misc Instructions

Copy File (COP), Synchronous Copy File (CPS)

File Arithmetic and Logic (FAL)

File Average (AVE)

File Fill (FLL)

File Search and Compare (FSC)

File Sort (SRT)

File Standard Deviation (STD)

Size In Elements (SIZE)

Array (File)/Shift Instructions

Bit Shift Left (BSL)

Bit Shift Right (BSR)

FIFO Load (FFL)

FIFO Unload (FFU)

LIFO Load (LFL)

LIFO Unload (LFU)

ASCII Conversion Instructions

Lower Case (LOWER)

REAL to String (RTOS)

DINT to String (DTOS)

String to DINT (STOD)

String to REAL (STOR)

Upper Case (UPPER)

ASCII String Instructions

Find String (FIND)

Insert String (INSERT)

Middle String (MID)

String Concatenate (CONCAT)

String Delete (DELETE)

Bit Instructions

Examine If Closed (XIC)

Examine If Open (XIO)

One Shot (ONS)

One Shot Falling (OSF)

One Shot Rising (OSR)

Output Energize (OTE)

Output Latch (OTL)

Output Unlatch (OTU)

Compare Instructions

Compare (CMP)

Equal To (EQ)

Greater Than (GT)

Greater Than or Equal To (GE)

Less Than (LT)

Less Than or Equal To (LE)

Limit (LIMIT)

Mask Equal To (MEQ)

Not Equal To (NE)

Valid Operators

What is zero fill?

Compute/Math Instructions

Absolute Value (ABS)

Add (ADD)

Compute (CPT)

Divide (DIV)

Modulo (MOD)

Multiply (MUL)

Negate (NEG)

Square Root (SQRT)

Subtract (SUB)

For/Break Instructions

Break (BRK)

For (FOR)

Math Conversion Instructions

Convert to BCD (TO_BCD)

Convert to Integer (BCD_TO)

Degrees (DEG)

Radian (RAD)

Truncate (TRUNC)

Move/Logical Instructions

Bit Field Distribute (BTD)

Bitwise And (AND)

Bitwise Exclusive Or (XOR)

Bitwise Inclusive Or (OR)

Bitwise Not (NOT)

Clear (CLR)

Masked Move (MVM)

Move (MOVE)

Swap Byte (SWPB)

Program Control Instructions

Always False (AFI)

JSR Flow Chart (True)

Jump to Label (JMP) and Label (LBL)

Jump to Subroutine (JSR), Subroutine (SBR), and Return (RET)

Master Control Reset (MCR)

MCR Flow Chart (False)

No Operation (NOP)

Temporary End (TND)

Trigger Event Task (EventTrigger)

User Interrupt Disable (UID)/User Interrupt Enable (UIE)

Special Instructions

Anti-reset Windup and Bumpless Transfer From Manual To Auto (PID)

Bumpless Restart (PID)

Cascading Loops (PID)

Controlling a Ratio (PID)

Data Transition (DTR)

Derivative Smoothing (PID)

Diagnostic Detect (DDT)

Feedforward or Output Biasing (PID)

File Bit Comparison (FBC)

Proportional Integral Derivative (PID)

PID Instruction Timing

Setting the Deadband (PID)

Using Output Limiting (PID)

Using PID Instructions

Sequencer Instructions

Sequencer Input (SQI)

Sequencer Load (SQL)

Sequencer Output (SQO)

Timer and Counter Instructions

Count Down (CTD)

Count Up (CTU)

Reset (RES)

Retentive Timer On (RTO)

Timer Off Delay (TOF)

Timer On Delay (TON)

Trigonometric Instructions

Arc Cosine (ACOS)

Arc Sine (ASIN)

Arc Tangent (ATAN)

Two-Argument Arctangent (ATAN2)

Cosine (COS)

Sine (SIN)

Tangent (TAN)

Program syntax

This section describes the syntax for programs.

A program component defines the programs used in logic. ControlLogix and CompactLogix controllers support up to 1,000 programs.

FactoryTalk Design Studio Code editor

Program structure

Program attributes

Program properties

Inline and external routines

Program guidelines

Program example

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