Mitsubishi Electric MELSEC FX Series - 7.14.8 DRVA

7 Applied Instructions
7.14 Positioning Control
554
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
7.14.8 DRVA
Outline
This instruction performs one-speed positioning by absolute drive. The moving distance from the origin (0
point) is specified, and this is also called absolute driving method.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder ST
DRVA 16 bits Continuous DRVA(EN,s1,s2,d1,d2);
DDRVA 32 bits Continuous DDRVA(EN,s1,s2,d1,d2);
Variable Description
Data type
16-bit
operation
32-bit
operation
Input
variable
EN Execution condition Bit
Number of output pulses (absolute address) ANY16 ANY32
Output pulse frequency ANY16 ANY32
Output
variable
ENO Execution state Bit
Device for issuing pulse (Y) Bit
Device of rotating direction signal Bit
Operand
type
Bit Devices Word Devices Others
System user Digit designation
System
user
Special
unit
Index
Cons
tant
Real
Number
Character
String
Pointer
XYMTCS
D
.b
KnX KnY KnM KnS T C D R
U\G
VZModifierK H E
"
"
P
zzz zzzz
S4 S5
zz z z z
zzz zzzz
S4 S5
zz z z z
S1
z
S2
zz
S3
z
DRVA
EN
s1
ENO
d1
d2s2
DDRVA
EN
s1
ENO
d1
d2s2