3 Basic Instructions
DVP-PLC Application Manual
3-2
Instructions for detecting the contacts of rising-/falling-edge
Execution speed (us)
API
Instruction
Code
Function Operands
ES SA EH
STEP Page
90 LDP
Rising-edge detection operation
X, Y, M, S, T, C 5.1 5.1 0.56 (0.88) 3 3-11
91 LDF
Falling-edge detection operation
X, Y, M, S, T, C 5.1 5.1 0.56 (0.88) 3 3-12
92 ANDP
Rising-edge series connection
X, Y, M, S, T, C 4.9 4.9 0.56 (0.88) 3 3-12
93 ANDF
Falling-edge series connection
X, Y, M, S, T, C 4.9 4.9 0.56 (0.88) 3 3-12
94 ORP
Rising-edge parallel connection
X, Y, M, S, T, C 4.9 4.9 0.56 (0.88) 3 3-13
95 ORF
Falling-edge parallel connection
X, Y, M, S, T, C 4.9 4.9 0.56 (0.88) 3 3-13
Rising-/falling-edge output instructions
Execution speed (us)
API
Instruction
Code
Function Operands
ES SA EH
STEP Page
89 PLS
Rising-edge output Y, M
7.8 7.8 9.92 3 3-13
99 PLF
Falling-edge output Y, M
7.8 7.8 10.16 3 3-14
End instruction
Execution speed (us)
Instruction
Code
Function Operands
ES SA EH
STEP Page
END
Program ends
N/A 5 5 0.24 1 3-14
Other instructions
Execution speed (us)
API
Instruction
Code
Function Operands
ES
SA
EH
STEP
Page
NOP No operation
N/A
0.88
0.88
0.16 1
3-15
98
INV Inverting operation
N/A
1.6
1.6
0.24 1
3-15
P Pointer P0 ~ P255 0.88
0.88
- 1
3-15
I Interruption program marker
I□□□
0.88
0.88
- 1
3-16
Step ladder instructions
Execution speed (us)
Instruction
Code
Function Operands
ES SA EH
STEP
Page
STL Step transition ladder start instruction S
11.6 10.6 0.56
1 4-1
RET Step transition ladder return instruction
N/A 7.04 6.04 0.24
1 4-1
Note 1: ES includes ES/EX/SS; SA includes SA/SX/SC; EH includes EH/EH2/SV.
Note 2: For EH series MPU, the execution speed in the brackets ( ) refers to the execution speed of designated
operand M1536 ~ M4095.
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