Mitsubishi MELSEC QCPU User Manual

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MELSEC-Q/QnA
6 BASIC INSTRUCTIONS
High Performance
QnA Q4AR
Basic
QCPU
PLC CPU
Process CPU
6.8.5 Rotary table near path rotation control (ROTC)
Usable Devices
Internal Devices
(System, User)
MELSECNET/10(H)
Direct J
\
Set
Data
Bit Word
File
Register
Bit Word
Special
Function
Module
U
\G
Index
Register
Zn
Constant Other
S
n
n2
D
[Instruction Symbol] [Execution Condition]
Command
ROTC n2n1
S D
ROTC
[Set Data]
Set Data Meaning Data Type
•
S
+0: Measures table rpm (for system use)
•
S
+1: Call station number
S
•
S
+2: Call item number
n1
•
Number of divisions on table (from 2 to 32767)
n2
•
Number of low speed sections (value from 0 to n1)
BIN 16 bits
•
D
+0: A phase input signal
•
D
+1: B phase input signal
•
D
+2: 0 point detection input signal
•
D
+3: High speed forward rotation output signal (for system use)
•
D
+4: Low speed forward rotation output signal (for system use)
•
D
+5: Stop output signal (for system use)
•
D
+6: High speed reverse rotation output signal (for system use)
D
•
D
+7: Low speed reverse rotation output signal (for system use)
Bit
[Functions]
(1) This control functions to enable near path rotation of the rotary table to the position of the
station number designated by
S
+1 in order to remove or deposit an item whose number has
been designated by
S
+2 on a rotary table with equal divisions of the value designated by n1.
(2) The item number and station number are controlled as items allocated by counterclockwise
rotation.
(3) The system uses
S
+0 as a counter to instruct it as to what item is at which number counting
from station number 0.
Do not rewrite the sequence program data.
Accurate controls will not be possible in cases where users have rewritten the data.
(4) The value of n2 should be less than the number of table divisions that were designated by n1.
(5)
D
+0 and
D
+1 are A and B phase input signals that are used to detect whether the direction
of the rotary table rotation is forward or reverse.
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Mitsubishi MELSEC QCPU Specifications

General

Brand	Mitsubishi
Model	MELSEC QCPU
Category	Controller
Language	English