Emotiontek MCU 2 Axis - Chapter 4. PLC Program; 4.1 Types of PLC basic commands

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Chapter 4. PLC Program

4.1 Types of PLC basic commands

Table 4.1 List of PLC commands

Command Object contact Use

LOAD Input, output, auxiliary, TIMER, COUNTER Starting of a logic operation(contact A)

LOAD NOT Input, output, auxiliary, TIMER, COUNTER Starting of a logic operation(contact B)

AND Input, output, auxiliary, TIMER, COUNTER Series connection(contact A)

AND NOT Input, output, auxiliary, TIMER, COUNTER Series connection(contact B)

OR Input, output, auxiliary, TIMER, COUNTER Parallel connection(contact A)

OR NOT Input, output, auxiliary, TIMER, COUNTER Parallel connection(contact B)

AND LOAD Series connection between blocks

OR LOAD Parallel connection between blocks

OUT Output, auxiliary Outputting of an operation result(contact A)

OUT NOT Output, auxiliary Outputting of an operation result(contact B)

D Output, auxiliary

Outputting of a differential pulse when the

input is ON

D NOT Output, auxiliary

Outputting of a differential pulse when the

input is OFF

TMR TIMER Timer action

CTR COUNTER Counter action

SET Output, auxiliary Bit unit Self-Holding(ON)

RST Output, auxiliary Bit unit Self-Holding(OFF)

MCS Common Interlock Set

MCS NOT Common Interlock Reset

MOV Output, auxiliary Word data movement command

DMOV Output, auxiliary DWord(32Bits) data movement command

FWR

Command to eternally store the position,

velocity, dwell, L data

END End of a PLC program

Note) PLC program capacity: A PLC program can be prepared up to about 1,000 steps.

Note) If a step of the PLC program starts with‘/*’, then it is regarded as a comment.