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MELSEC-
A
5 DATA USED FOR POSITIONING CONTROL
Storage item Storage details Reading the monitor value
Error at start history (up to 16 items can be stored)
Md.13
Start axis
The No. of the axis for which an
error was detected when starting
is stored.
Monitoring is carried out with a decimal.
Storage value
1: Axis 1
2: Axis 2
Monitor
v
alue
Md.14
Operation type
[Stored contents]
The operation information (restart flag, start origin, operation type) is stored.
Restart flag : Whether the operation restarted after stopping once
Start origin : Where the start signal was input from
Operation type : What type of operation was carried out
[Reading the monitor value] Monitoring is carried out with a hexadecimal.
b15 b12 b8 b4 b0
ABCD
B
a
CD
DCBA
Buffer
memory
Monitor value
Start origin
Restart flag
Operation type
00
01
10
Stored contents Storage value
PLC CPU
External signal
Peripheral device
0
1
Stored contents Storage value
Restart flag OFF
Restart flag ON
a
0
B
0
C
0
D
1
001
1B58
0
2
5
8
7000
1
B6
27010
1F
7
C8060
1F7D
8061
600
Stored contents
Storage value
Remarks
(decimal)
Positioning operation
Block positioning operation
JOG operation
Manual pulse generator operation
~
1F738051
1F7
48052
1
F7
58053
1F
F
E
8190
1FFF
8191
Machine zero point return
High-speed zero point return
Current value change
Data setting method zero point return
Absolute position restoration
~
Md.15
Start time
(Hour: minute)
The error detection time is stored.
(Software clock data created by
system in D75P2.)
Monitoring is carried out with a hexadecimal.
0
b15 b12
001010100110000
b8 b4 b0
5301
0 to 2 0 to 9 0 to 5
00 to 23
00 to 59
0 to 9
5
130
Buffer memor
y
(
stored with BCD code
)
Monitor value
(hour) (minute)
Md.16
Start time
(Second:100 ms)
The error detection time is stored.
(Software clock data created by
system in D75P2.)
Monitoring is carried out with a hexadecimal.
0
b15 b12
100100100000111
b8 b4 b0
9074
0 to 5
0 to 9
0
00 to 59
00 to 09
0 to 9
9407
Buffer memory (stored with BCD code)
Monitor value
(
second
)
(
100 ms
)
Md.17
Error judgment
[Stored contents]
The error judgment results when starting (shown below) are stored.
BUSY start warning flag
Error flag
Error No.
[Reading the monitor value]
Monitoring is carried out with a hexadecimal.
b15 b12 b8 b4 b0
ABCD
B
a
CD
D
C
B
A
0
1
0
1
a, B, C and D are converted into a decimal,
which can be confirmed in section "14.3 List of errors".
Buffer
memory
Monitor value
Error flag
BUSY start warning
Error No.
Stored contents Storage value
Stored contents Storage value
Error flag OFF
Error flag ON
BUSY start
warning OFF
BUSY start
warning ON
Md.18
Starting history
pointer at error
The pointer No. following the
pointer No. where the latest start
history during errors is stored is
indicated.
Monitoring is carried out with a decimal.
Storage value (Pointer No.)
0 to
15
Monitor
value