YASKAWA MP3000 Series Setup Manual page 104

3.6 Device-specific Settings
3.6.2 Detailed Module Settings
Information
3-26
Slave Synchronization Settings (Slave CPU Synchronization)
Slave CPU synchronization is used for configurations with master and slave Machine Control-
lers that have CPU Units with built-in SVC32 function modules in order to synchronize the
high-speed scan cycle of the master and slave Machine Controllers.
When multiple Machine Controllers are connected as slaves, the high-speed scans in all of
the Machine Controllers connected as slaves will be synchronized. The references sent from
the application program in the master will be transmitted to all of the Machine Controllers
connected as slaves at the same time. If you mount Option Modules in the slaves, you can
synchronize the operation of the axes connected to the Option Modules.
With slave synchronization, you can distribute the application programming in the Machine
Controllers in order to distribute the application loads on the CPUs and expand memory.
The following figure shows a system configuration example.
Master
Slave
RUN ERR
LK1 LK2
M/S
OFF ON
Note: A delay will occur in MECHATROLINK-III communications until the references from the
application program in the master reach the slaves. Therefore, the operation of the
SERVOPACKs connected to the master will not be synchronized with the operation of
the SERVOPACKs connected to the slaves.
SVC-01 Module SVC-01 Module
Slave
RUN ERR
LK1 LK2
M/S
OFF ON