Omron NX701-17 Series User Manual page 280

Appendices
Term
Safe operational
SDO communications
service data object
Slave Information Interface
subindex
sync jitter
sync manager
system-defined variable
transmission jitter
transmit PDO
WireShark
A-32
Abbrevia-
tion
−
A state in EtherCAT communications where only SDO communica-
tions and reading input data from slaves are possible. Outputs from
slaves are not performed.
−
One type of EtherCAT communications that uses service data
objects (SDOs) for communicating information when required.
SDO CoE asynchronous mailbox communications where all objects in the
object dictionary can be read and written.
SII Slave information that is stored in non-volatile memory in the slave.
− Sub-address of an object within the object dictionary.
−
The offset in the operation timing between slaves.
SM Collection of control elements to coordinate access to concurrently
used objects.
−
A variable in the NJ/NX-series CPU Unit for providing information
such as the EtherCAT communications status and error status. Sta-
tus information about EtherCAT communications is obtained by read-
ing system-defined variables from user applications in the NJ/NX-
series CPU Unit.
− The jitter in the process data transmission period (ns).
TxPDO A process data object sent from an EtherCAT Slave Unit.
−
Freeware for monitoring and capturing packets.
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
Description