Chapter 16 PLC Function ApplicationsC2000
16-41
16-6 Introduction to the Command Window
16-6-1 Overview of basic commands
Ordinary commands
Command
code
Function OPERAND
Execution
speed (us)
LD Load contact a X, Y, M, T, C 0.8
LDI Load contact b X, Y, M, T, C 0.8
AND Connect contact a in series X, Y, M, T, C 0.8
ANI Connect contact b in series X, Y, M, T, C 0.8
OR Connect contact a in parallel X, Y, M, T, C 0.8
ORI Connect contact b in parallel X, Y, M, T, C 0.8
ANB Series circuit block N/A 0.3
ORB Parallel circuit block N/A 0.3
MPS Save to stack N/A 0.3
MRD Stack read (pointer does not change) N/A 0.3
MPP Read stack N/A 0.3
Output command
Command
code
Function OPERAND
Execution
speed (us)
OUT Drive coil Y, M 1
SET Action continues (ON) Y, M 1
RST Clear contact or register Y, M, T, C, D 1.2
Timer, counter
Command
code
Function OPERAND
Execution
speed (us)
TMR 16-bit timer T-K or T-D commands 1.1
CNT 16-bit counter C-K or C-D (16-bit) 0.5
Main control command
Command
code
Function OPERAND
Execution
speed (us)
MC Common series contact connection
N0–N7
0.4
MCR Common series contact release
N0–N7
0.4
Contact rising edge / falling edge detection command
Command
code
Function OPERAND
Execution
speed (us)
LDP Start of forward edge detection action X, Y, M, T, C 1.1
LDF Start of reverse edge detection action X, Y, M, T, C 1.1
ANDP Forward edge detection series connection X, Y, M, T, C 1.1
ANDF Reverse edge detection series connection X, Y, M, T, C 1.1
ORP Forward edge detection parallel connection X, Y, M, T, C 1.1
ORF Reverse edge detection parallel connection X, Y, M, T, C 1.1
Upper/lower differential output commands
Command
code
Function OPERAND
Execution
speed (us)
PLS Upper differential output Y, M 1.2
PLF Lower differential output Y, M 1.2