11 - 5
11 EtherCAT Coupler Unit Functions
NX-series EtherCAT Coupler Unit User’s Manual (W519)
11-2 NX Unit Mounting Settings
11
11-2-1 Introduction
11-2 NX Unit Mounting Settings
This section describes the NX Unit mounting settings.
This function is used to register NX Units that are not connected to the actual configuration but will be
added at a later time in the Unit configuration information as unmounted Units.
If you use this function, you do not have to modify the user program after the NX Units are added
because of the following reasons.
• I/O memory area is reserved for these unmounted NX Units in the same way that it is reserved for
mounted NX Units.
• Unmounted NX Units are also assigned NX Unit numbers. This prevents the NX Unit numbers of
other NX Units in the same Slave Terminal from changing when you change the setting of an NX Unit
from unmounted to mounted.
11-2-1 Introduction
EtherCAT Coupler
Unit
End Cover
♯1
NX Unit
♯4
NX Unit
NX Units to add later
Unit configuration
information
♯5
NX Unit
♯6
NX Unit
♯8
NX Unit
♯2
NX Unit
♯3
NX Unit
♯7
NX Unit
♯1
NX Unit
♯2
NX Unit
♯3
NX Unit
♯4
NX Unit
♯5
NX Unit
♯6
NX Unit
♯7
NX Unit
♯8
NX Unit
EtherCAT Coupler
Unit
Current Unit
configuration
Unit configuration
information that is
created
(Set as an
unmounted
Unit.)
(Set as an
unmounted
Unit.)
(Set as an
unmounted
Unit.)
The Unit configuration information includes information on unmounted Units so that I/O memory area is
also reserved for them.