Axis Monitor Data - Mitsubishi Electric MELSEC-L LD75P User Manual

5.6.2

Axis monitor data

(1) [Md.20] Current feed value
Item
The currently commanded address is stored. (Different from the actual motor position during operation)
The current position address is stored.
If "degree" is selected as the unit, the addresses will have a ring structure for values between 0 and 359.99999 degrees.
Storage details
• Update timing: 0.9ms
• The OP address is stored when the machine OPR is completed.
• When the current value is changed with the current value changing function, the changed value is stored.
■Monitoring is carried out with a hexadecimal display.
(High-order buffer memory) (Low-order buffer memory)
Reading the monitor
value
Decimal integer
value
Actual value
Default value 0000H
Axis 1: 800, 801
Storage buffer memory Axis 2: 900, 901
address Axis 3: 1000, 1001
Axis 4: 1100, 1101
Monitor
E F G H
value
A B C D
Sorting
A B C D E F G
Converted from
hexadecimal to decimal
R
Unit conversion
R 10
Md.20 Current feed value
Machine feed value
Md.21
Md.22 Feedrate
CHAPTER 5 DATA USED FOR POSITIONING CONTROL
Description
Low-order buffer memory Example) 800
b15 b12 b8
E F G
High-order buffer memory Example) 801
b31 b28 b24
A B C
H
Unit conversion table
Md.20 Md.21
n
-1
-5
-5
0
Unit conversion table
n
)
Md.22
n
-2
-3
-3
0
b4 b0
H
b20 b16
D
)
Unit
m
inch
degree
pulse
Unit
mm/min
inch/min
degree/min
pulse/s
5
193