7 - 54
7 SYNCHRONOUS CONTROL
7.7 Synchronous Control Monitor Data
Synchronous control monitor data is updated only during synchronous control.
The monitor values ([Md.400] Current value after composite main shaft gear
(30n, 30n), [Md.401] Current value per cycle after main shaft gear
(30n, 30n), [Md.402] Current value per cycle after auxiliary shaft
gear (30n, 30n), [Md.407] Cam axis current value per cycle
(30n, 30n), [Md.408] Cam reference position (30n,
30n), and [Md.409] Cam axis current feed value (30n,
30n)) from the last synchronous control session are restored the next time the
Multiple CPU system power supply turns ON. Restarting operation status from the last
synchronous control session is possible through returning to the last position via
positioning control. (Refer to Section 8.4).
"The last synchronous control session" indicates status just before the last
synchronous control session was stopped as follows. These are listed with the last
synchronization status.
• Just before [Rq.380] Synchronous control start (n) turns from ON to OFF.
• Just before deceleration stop by a stop command or an error, etc.
• Just before the Multiple CPU system power supply turned OFF.
[Word device]
Symbol
Monitor item
Storage details
Monitor value
Refresh cycle
Device No.
Md.400
Current value after
composite main shaft gear
• The current value after combining
the main input and sub input
values from the main shaft is
stored.
• Value is stored even after Multiple
CPU system power supply OFF.
-2147483648 to 2147483647
[Main input axis position units]
(Note-1)
30n
30n
Md.401
Current value per cycle
after main shaft gear
• The current value per cycle after
the main shaft gear is stored.
• One cycle is considered the cam
axis length per cycle.
• Value is stored even after Multiple
CPU system power supply OFF.
0 to (Cam axis length per
cycle-1)
[Cam axis cycle units]
(Note-2)
30n
30n
Md.402
Current value per cycle
after auxiliary shaft gear
• The current value per cycle after
the auxiliary shaft gear is stored.
• One cycle is considered the cam
axis length per cycle.
• Value is stored even after Multiple
CPU system power supply OFF.
0 to (Cam axis length per
cycle-1)
[Cam axis cycle units]
(Note-2)
30n
30n
Md.406
Cam axis phase
compensation amount
• The current phase compensation
amount is stored.
-2147483648 to 2147483647
[Cam axis cycle units]
(Note-2)
30n
30n
Md.407
Cam axis current value per
cycle
• The current value per cycle is
stored, which is calculated from
the input travel value to the cam
axis. (The value after phase
compensation)
• Value is stored even after Multiple
CPU system power supply OFF.
0 to (Cam axis length per
cycle-1)
[Cam axis cycle units]
(Note-2)
Operation
cycle
(During
synchronous
control only)
30n
30n
(Note-1): Main input axis position units (Refer to Chapter 5)
(Note-2): Cam axis cycle units (Refer to Section 7.5.1)
Summary of Contents for Q172DSCPU
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