Omron NJ101-10 Series, Руководство пользователя

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Term
Abbrevia-
tion
Description
project unit version --- A unit version to be set for the project. It is set for the project in the Se-
lect Device Area of the Project Properties Dialog Box on the Sysmac
Studio.
transmission jitter --- The jitter in the process data transmission period (ns).
transmit PDO TxPDO A process data object sent from an EtherCAT slave.
distributed clocks DC Clock distribution mechanism used to synchronize EtherCAT slaves and
the EtherCAT master.
device profile --- Collection of device dependent information and functionality providing
consistency between similar devices of the same device type.
device variables --- Variables in the NJ/NX-series CPU Unit to which process data on Ether-
CAT slaves are allocated. Slave process data is accessed by directly
reading and writing these device variables from user applications on the
NJ/NX-series CPU Unit.
sync jitter --- The offset in the operation timing between slaves.
network configuration informa-
tion --- The EtherCAT network configuration information held by the EtherCAT
master.
packet monitoring --- A function that enables the EtherCAT master to capture packets flowing
over an EtherCAT line and store them in the master. You can start and
stop capturing packets from the Sysmac Studio or with EtherCAT com-
munications instructions.
Pre-Operational --- A state in EtherCAT communications where only SDO communications
are possible without being able to perform I/O.
process data --- Collection of application objects designated to be transferred cyclically
or acyclically for the purpose of measurement and control.
process data object PDO Structure described by mapping parameters containing one or several
process data entities.
process data communications --- One type of EtherCAT communications that uses process data objects
(PDOs) to exchange information in realtime with a fixed cycle. This is al-
so called
PDO communications .
Originating slave of the ring --- A slave that becomes the starting point of the ring topology. To be spe-
cific, any of the following slaves for which the cable redundancy is ena-
bled.
•
GX-JC03 Junction Slave
Start port of the ring --- A port that becomes the start point of the ring topology.
End port of the ring --- A port that becomes the end point of the ring topology.
Appendices
A-34
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)