6 - 7
MELSEC-A
6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL
Device
Device
name
Axis 1 Axis 2 Axis 3
Application Details when ON
D30 Read/write request
( Cd.7
Read/write request)
D31 Teaching results
( Cd.7
Read/write request)
D32 Axis state
( Md.35
Axis operation status)
D33 Restart command
( Cd.13
Restart command)
D34 Parameter initialization results
( Cd.10
Parameter initialization request)
D35 Flash ROM write results
( Cd.9
Flash ROM write request)
D36 Error code
( Md.33
Axis error No.)
D40 Positioning identifier
( Da.1 to Da.4 )
D41 M code
( Da.9
M code)
D42 Dwell time
( Da.8
Dwell time)
D43 Blank Blank
D44 Speed command (low-order 16 bits)
D45 Speed command (high-order 16 bits)
For teaching
( Da.7
Command speed)
D50 Unit setting
(
Pr.1
Unit setting)
D51 No. of pulses per rotation
(
Pr.2
No. of pulses per rotation)
D52 Movement amount per rotation
(
Pr.3
Movement amount per rotation)
D53 Unit magnification
(
Pr.4
Unit magnification )
(
Da.1
Operation pattern)
(
Da.2
Control method)
(
Da.3
Acceleration time No.)
D56 Positioning identifier
(
Da.4
Deceleration time No.)
D57 M code
(
Da.9
M code)
D58 Dwell time
(
Da.8
Dwell time)
D59 (Dummy) –
D60 Command speed (low-order 16 bits)
D61 Command speed (high-order 16 bits)
(
Da.7
Command speed)
D62 (low-order 16 bits)
D63
Positioning
address/movement
amount
(high-order 16 bits)
(
Da.5
Positioning address/movement
amount)
D64 (low-order 16 bits)
D65
Positioning data No.1
Arc address
(high-order 16 bits)
(
Da.6
Arc address)
D66 1st point (Shape, start No.)
D67 2nd point (Shape, start No.)
D68 3rd point (Shape, start No.)
D69 4th point (Shape, start No.)
D70 5th point (Shape, start No.)
D71 1st point (Special start command)
D72 2nd point (Special start command)
D73 3rd point (Special start command)
D74 4th point (Special start command)
D75
–
Positioning start information
(Start block data)
5th point (Special start command)
(
Da.10
Shape)
(
Da.11
Start data No.)
(
Da.12
Special start command)
(
Da.13
Parameter)
D9026 Date/hour data
Data
register
D9027 Minute/second data
Clock data
T0 PLC READY signal OFF confirmation
Timer
T1
–
PLC READY signal OFF confirmation
PLC READY signal OFF