Yaskawa MP2300S Basic Module - Manual (Page 302)

7.3 Operation
7.3.6 Management to Resume Slave CPU Synchronization
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7.3.6 Management to Resume Slave CPU Synchronization
The slave CPU synchronous process is automatically carried out when its execution requirements are met.
Here, in a transient state from slave CPU asynchronous to slave CPU synchronous state, the following operations are
carried out by the system:
• Start of timing adjustment of the slave scan cycle
• When SVB-01 is attached to a optional slave slot, the MECHATROLINK communication is reset
As a result operation of the slave side application is affected as follows:
• One scan with a longer cycle than the setup time occurs
• When a servo connected to the SVB-01 is running, its axis stops and an alarm occurs
To avoid these impacts (to avoid automatic recovery to the slave CPU synchronous state), use the slave side application
to operate a control bit “SLVSC (slave CPU synchronous resume control)”.
Operating this bit allows you to control the synchronous process.
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
Unused SLVSC
bit15 bit14 bit13 bit12 bit11 bit10 bit9 bit8
Unused
Name Definition Description
SLVSC
0 Resume enable
When out of slave CPU synchronization, the slave CPU synchroniza-
tion is automatically resumed.
1 Resume disable
Even when out of slave CPU synchronization, the operation continues
in an asynchronous state.
High
Low
OWxxxx+0
OWxxxx+1
OWxxxx+2
7 6 5 4 3 2 1 0
MP2300S (slave)
[Output register]
Scan counter
unused
Control bit
Data 1