5 Categories & Use of Application Instructions
DVP-PLC Application Manual
5-6
5.2 Composition of Application Instruction
An application instruction has two parts: the instruction and operands.
Instruction: The function of the instruction
Operands: Devices for processing the operations of the instruction
The instruction part of an application instruction usually occupies 1 step, and one operand occupies 2 or 4 steps
depending on the instruction is a 16-bit or 32-bit one.
Format of an application instruction:
1
2
3
4
5
6
7
8
9
11
12
13
10
API
41
P
DECO
Mn emo nic
S
D
n
Operan ds
F un cti on
Decode
Co ntrol lers
ES /EX /SS
SA /SX /SC
EH /S V
Prog ram Ste ps
DECO, DECOP: 7 steps
Bi t Devic es
Word De vices
X
Y
M
S
K H
Kn X Kn Y KnM KnS
T
D
C
E F
Typ e
OP
S
D
n
*
*
*
*
* *
* * *
*
*
*
*
*
**
*
*
* *
* *
E S
E S
E S
S S
E X
S A S X S C E H S V
E X S S S A S X S C E H S V
E X S S
S X
S A
S C E H S V
PUL SE
16 -b it
32 -bit
API No.
Indication of if there is a 16-bit or 32-bit instruction. If there is a 32-bit instruction, the column will be marked
with “D”.
Mnemonic of the application instruction
Indication of if there is a pulse execution type instruction. If there is a pulse instruction, the column will be
marked with “P”.
Operands
Function of the application instruction
DVP-PLC applicable to the application instruction. ES includes ES/EX/SS, SA includes SA/SX/SC, EH
includes EH/EH2/SV.
Steps occupied by the 16-bit/32-bit/pulse execution instruction
DVP-PLC applicable to the pulse/16-bit/32-bit instruction
Column marked with * and in grey refers to E, F index register modification is applicable.
Column marked with * is the device applicable for the operand
Device name
Device type
Input of application instruction:
Some application instructions are only composed of the instruction part (mnemonic), e.g. EI, DI, WDT…. Most
application instructions are composed of the instruction part and many operands.
Содержание DVP-PLC
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