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Chapter 4. PLC Program
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.
Summary of Contents for MCU 2 Axis
Page 1: ...User s Manual 2 AXES...