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
6.8.6 Ramp signal (RAMP)
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
K, H
Other
n1
n2
D1
n3
D2
[Instruction Symbol] [Execution Condition]
Command
RAMP n3n2n1
D1
D2
RAMP
[Set Data]
Set Data Meaning Data Type
n1
• Initial value
n2
• Final value
•
D1
+0: Present value
D1
•
D1
+1: Number of times executed (for system use)
n3
• Number of times moved
BIN 16 bits
•
D2
+0: Completion device
D2
•
D2
+1: Selected bit where data is to be saved at completion.
Bit
[Functions]
(1) Stores in
D1
+1 the value which varies the value specified in n1 to the value specified in n2
linearly by the number of shifts specified in n3.
The value to be stored in
D1
+1 is calculated every scan with the following expression.
{(Value specified in n2) - (Value specified in n1)}
(Number of shifts)
(Number of executions)
One variation
0 is varied to 350 in six scans as shown below.
Value (350)
specified in n2
350
300
250
200
150
100
50
Value stored in +0
Value (0)
specified in n1
Number of shifts (7)
D1
When the calculated one variation is indivisible, compensation is made to achieve the value
specified in n2 by the number of shifts specified in n3.
Hence, a linear ramp may not be made.
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Mitsubishi MELSEC QCPU Specifications

General

Brand	Mitsubishi
Model	MELSEC QCPU
Category	Controller
Language	English