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Appendices
A-5-3
Assigning Objects
This section describes how objects are assigned in an EtherCAT Slave Terminal.
Assignment of Objects in an EtherCAT Slave Terminal
The following figure and table show how index numbers for objects are assigned to the EtherCAT Cou-
pler Unit and NX Units in an EtherCAT Slave Terminal.
EtherCAT Coupler Unit
Object type
Input Data Mapping Objects
(PDO mapping objects for TxP-
DOs)
Input Data Objects (application
objects for TxPDOs)
Output Data Mapping Objects
(PDO mapping objects for RxP-
DOs)
Output Data Objects (application
objects for RxPDOs)
*2
Configuration Objects
*3
Information Objects
*1. #1 to #125 are the NX Unit numbers for the NX Units.
*2. This is an information object for the downloaded Unit configuration.
*3. This is an information object for the actual Unit configuration.
EtherCAT Coupler Unit Objects
PDO mapping objects (Input Data Mapping Objects and Output Data Mapping Objects) and application
objects (Input Data Objects and Output Data Objects) are assigned for the range of index numbers in
the table under Assignment of Objects in an EtherCAT Slave Terminal on page A-14.
A - 14
NX Units
#1
#2
EtherCAT Cou-
pler Unit
#1
1BF4 hex
1A00 hex
to
to
1BFF hex
1A03 hex
3000 hex
6000 hex
to
to
5FFF hex
601F hex
1600 hex
to
1603 hex
7000 hex
to
701F hex
8000 hex
to
801F hex
9000 hex
to
901F hex
End Cover
#125
*1
NX Units
#2
---
1A04 hex
to
---
1A07 hex
6020 hex
to
---
603F hex
1604 hex
to
---
1607 hex
7020 hex
to
---
703F hex
8020 hex
to
---
803F hex
9020 hex
to
---
903F hex
NX-series EtherCAT Coupler Unit User's Manual (W519)
#125
1BF0 hex
to
1BF3 hex
6F80 hex
to
6F9F hex
17F0 hex
to
17F3 hex
7F80 hex
to
7F9F hex
8F80 hex
to
8F9F hex
9F80 hex
to
9F9F hex
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Troubleshooting
