Precautions When Combining With Other Modules - YASKAWA SVC User Manual

Mp3000 series machine controller, motion control
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2.6.5

Precautions When Combining with Other Modules

The SVC Function Module and the SVC-01 and SVB-01 Modules operate in synchronization
with the high-speed scan of the CPU Function Module. Therefore, the operation of all the Mod-
ules will be synchronized.
However, the SVC Function Module and SVC-01 Module have different MECHATROLINK com-
munications methods from the SVB-01 Module. Because of this, even if the references are
received in the same scan with the same transmission cycle setting, the timing at which those
references are transmitted to slave stations via MECHATROLINK will not coincide even though
the same transmission cycle settings are used.
The SVC Function Module minimizes the delay between the time a reference is set and a
response is received. Therefore, the timing at which references are transmitted to the slave sta-
tions will not coincide even between the SVC Function Module and SVC-01 Module.
Observe the following precautions.
• References that are set in the same scan by the application are transmitted in the same scan
to the SVC Function Module and the SVC-01 and SVB-01 Modules. However, a specific dif-
ference occurs in the timing in which these references are transmitted to slave stations via
MECHATROLINK. Therefore, interpolation operations cannot be performed between the SVC
Function Module or SVC-01 Module and the SVB-01 Module.
• Interpolation operations cannot be performed between the SVC Function Module and SVC-
01 Module.
• For applications that require synchronicity among more than one Module, either use only
SVC-01 Modules or only SVB-01 Modules.
Refer to the following manuals for details on the SVB-01 and SVC-01 Modules.
MP2000 Series Built-in SVB/SVB-01 Motion Module User's Manual (Manual No.: SIEP C880700 33)
MP2000 Series SVC-01 Motion Module User's Manual (Manual No.: SIEP C880700 41)
2.6 Synchronization of the MECHATROLINK-III Transmission Cycle and High-Speed Scan Cycle
2.6.5 Precautions When Combining with Other Modules
2
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