Positioning Control - Fnc150 To Fnc159 - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
20. Positioning Control – FNC150 to FNC159
FNC150 to FNC159 provide positioning instructions using the built-in pulse output function of the PLC.
FNC No. Mnemonic
150 DSZR
151 DVIT
152 TBL
−
153
−
154
155 ABS
156 ZRN
157 PLSV
158 DRVI
159 DRVA
Caution on writing during RUN
During RUN, avoid writing while any positioning control instruction (FNC150, FNC151, or FNC156 to
FNC159) is executed (that is, while pulses are output).
If program write is executed during RUN to a circuit block including a target instruction below while pulses are
being output, the PLC executes the operation shown below.
Target instruction
DSZR (FNC150)
DVIT (FNC151)
TBL (FNC152)
ZRN (FNC156)
PLSV (FNC157)
DRVI (FNC158)
DRVA (FNC159)
*1. Only available for FX
→ For details, refer to the Positioning Control Edition manual.
Symbol
DSZR S1
DVIT S1
TBL
ABS
ZRN S1
PLSV
DRVI S1
DRVA S1
During operation with
*1
acceleration/deceleration
During operation without
acceleration/deceleration
/FX PLC Ver.2.20 or later and FX
3U 3UC
20 Positioning Control – FNC150 to FNC159
DOG Search Zero Return
S2 D1 D2
Interrupt Positioning
S2 D1 D2
Batch Data Positioning Mode
D n
Absolute Current Value Read
S D1 D2
Zero Return
S2 S3 D
Variable Speed Pulse Output
S D1 D2
Drive to Increment
S2 D1 D2
Drive to Absolute
S2 D1 D2
PLC operation when writing excuted during RUN while instruction is
Decelerates and stops pulse output.
Disables writing during RUN.
Decelerates and stops pulse output.
Decelerates and stops pulse output.
Immediately stops pulse output.
Decelerates and stops pulse output.
PLC.
3G
Function Reference
executed
11
12
Section
20.1
13
Section
20.2
Section
20.3
14
−
−
Section
20.4
15
Section
20.5
Section
20.6
16
Section
20.7
Section
20.8
17
18
19
20
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