Omron NJ101-10 Series, User Manual

Page: 37 / 280


Output Port
The output port transmits EtherCAT communications data to other devices. When you connect the
output port to another device, always connect it to the input port on the other device. Normal
communications will not be possible if you connect to the output port on another device.

Input Port
This port is used to input EtherCAT communications data. Always connect it to the output port on
another device. Normal communications will not be possible if you connect to the input port on an-
other device.

EtherCAT Slaves
Each EtherCAT slave outputs the output data that it received from the EtherCAT master through
the EtherCAT network. It also sends input data to the EtherCAT master through the EtherCAT net-
work.
• Each slave has one input port and at least one output port.
• In the EtherCAT network, you can use the salves and Junction Slaves that are listed below in
total up to the maximum number of slaves.
• Assign node addresses to the slaves and Junction Slaves. The node address can be any value
within the settable node address range, and can be assigned without any distinction between the
slaves and Junction Slaves. But any node address should not be used more than once.
• Some slaves can operate as only synced slave or as only non-synced slave. Some slaves can
select to operate the synced slave or the non-synced slave.
• Non-synced Slaves
For these slaves, the distributed clock setting is disabled or selected --- .
• Synced Slaves
Perform the clock synchronization to communicate between the EtherCAT master and slaves
based on the Distributed Clock (DC). This applies for the slaves that the distributed clock set-
ting is enabled.
Note 1. Refer to 1-3 Specifications of Built-in EtherCAT Port on page 1-10 for details on the maximum num-
ber of slaves and the settable node address range.
Note 2. The slaves are synchronized between synced slaves even when multiple non-synced slaves and
Junction Slaves are connected.
The following table lists some of the OMRON EtherCAT slaves that are available.
Name Type Model
Synced
/Non-
synced
Slaves
Refer-
ence
Clock
*1
Assigning
an axis
Digital I/O Slaves Slaves with screw terminals
and 2-tier terminal block GX-
£
D16
£
1/OC1601 Non-
synced
Slaves Exist Not possible
Slaves with screw terminals
and 3-tier terminal block GX-ID16
£
2/OD16
£
2/MD16
£
2 Non-
synced
Slaves Exist Not possible
Slaves with e-CON connec-
tors GX-
£
D16
£
8/
£
D32
£
8 Non-
synced
Slaves Exist Not possible
Analog I/O Slaves Slaves with screw terminals
and 2-tier terminal block GX-AD0471/DA0271 Non-
synced
Slaves Exist Not possible
1 Introduction
1-5
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
1-2 System Configuration and
Configuration Devices
1
1-2-1
System Configuration