Advertisement
12 CONTROL SUB FUNCTIONS
Setting item
Target position
Cd.27
value
(new address)
Target position
Cd.28
value (new speed)
Target position
Cd.29
change request flag
Refer to Section 5.7 "List of control data" for details on the setting details.
Positioning start signal [Y10]
PLC READY signal [Y0]
QD75 READY signal [X0]
Start complete signal [X10]
BUSY signal [XC]
Positioning complete signal [X14]
Error detection signal [X8]
Cd.27
Cd.28
Cd.29
[3] Method of setting target position change function from PLC CPU
The following table and chart show the example of a data setting and sequence
program used to change the target position of the axis 1 by the command from
the PLC CPU, respectively. (example in which the target position value and
command speed are changed to a new target position of "300.0 m" and a new
command speed of "10000.00 mm/min".)
(1) The following data is set.
(Referring to the starting time chart shown in item (2) below, carry out the
setting with the sequence program shown in item (3).)
Setting
value
3000
Set the new address.
1000000 Set the new speed.
Set "1: Carry out speed change".
1
(2) The following shows the time chart for target position change.
V
Target position value (new address)
Target position value (new speed)
Target position change request flag
Fig. 12.42 Time chart for target position change from PLC CPU
Setting details
0
1
12 - 79
MELSEC-Q
Buffer memory address
Axis
Axis
1
2
1534
1634
1535
1635
1536
1636
1537
1637
1538 1638 1738 1838
Dwell time
3000
1000000
0
Axis
Axis
3
4
1734
1834
1735
1835
1736
1836
1737
1837
t
Advertisement
Troubleshooting
