Mitsubishi Electric MELSEC-Q Series User Manual page 212

Storage item Storage details
[Storage details]
[Reading the monitor value]
[Md.3]
b15
Start
Buffer
information
memory
The starting No. is stored.
[Md.4]
Start No.
Refresh cycle: At start
Note: If a start signal is issued against an operating axis, a record relating to this event may be output before a record
relating to an earlier start signal is output.
This area stores the start information (restart flag, start origin, and start
axis):

Restart flag: Indicates whether the operation has or has not been

Start origin : Indicates the source of the start signal.

Start axis : Indicates the started axis.
Refresh cycle: At start
Monitoring is carried out with a hexadecimal display.
b12 b8 b4
0 0 0 0 0
Not used
Start origin
Stored contents
PLC CPU
External signal
GX Works2
Restart flag
Stored contents Storage value
Restart flag OFF
Restart flag ON
Monitoring is carried out with a hexadecimal display.
b15
Buffer
memory
5 - 92
Chapter 5 Data Used for Positioning Control
Reading the monitor value
halted and restarted.
b0
Monitor
value
Storage value
00
01
10
0
1
b12 b8 b4 b0
A B C D
Start No.
Stored contents
Positioning operation
JOG operation
Manual pulse generator
Machine HPR
Fast HPR
Current value changing
Simultaneous start
Synchronous control operation
Position control mode
speed control mode switching
Position control mode
torque control mode switching
Speed control mode
torque control mode switching
Torque control mode
speed control mode switching
Speed control mode
position control mode switching
Torque control mode
position control mode switching
Outside the range of control mode setting
Start axis
Stored contents Storage value
Axis 1 1
Axis 2 2
3
Axis 3
4
Axis 4
5
Axis 5
Axis 16 10
Monitor value
Storage value
Reference
(Decimal)
A B C D
0 0 0 1 001
to
0 2 5 8 600
B
1 5 8 7000
1 B 5 9 7001
1 B 5 A 7002
1 B B 7003
5
1 B 5 C 7004
2 3 3 2 9010
2 3 3 3 9011
2 9001
3 2 9
2 3 2 A 9002
2 3 2 B 9003
2 3 2 C 9004
2 3 3 C 9020
2 3 4 6 9030
2 3 4 7 9031
3 8
2 4 9032
2 3 4 9 9033
2 3 4 A 9034
2 3 B 9035
4
2 3 4 C 9036