Data That Is Backed Up - Omron NJ-series User Manual

9 Backup Functions
9-1-3

Data That Is Backed Up

The following data is backed up. This section describes the backup functions based on the following
data groups for the backup data.
Data group
User program and settings
Present values of variables
Present values of memory used
for CJ-series Units
Units and slaves settings
Absolute encoder home offset
*1 The system-defined variables are not included.
*2 A part or all of the set parameters are not backed up for some EtherCAT slave models. For the details on the
target EtherCAT slaves for the data backup function, refer to 9-8-4 EtherCAT Slaves for Which You Can Back
Up Data on page 9-38.
Precautions for Safe Use
Precautions on the Absolute Encoder Home Offset
The absolute encoder home offsets are backed up with a Battery in the CPU Unit as absolute
encoder information. If any of the following conditions is met, clear the absolute encoder home
offsets from the list of data items to restore, and then restore the data. Then, define the absolute
encoder home again. If you do not define home, unintended operation of the controlled system
may occur.
• The Servomotor or Servo Drive was changed since the data was backed up.
• The absolute encoder was set up after the data was backed up.
• The absolute data for the absolute encoder was lost.
9-6
EtherCAT configuration (EtherCAT slave configuration and EtherCAT master
settings)
Unit Configuration and Unit Setup
I/O Map
Controller Setup (Operation Settings and Built-in EtherNet/IP Port Settings)
Motion Control Setup
Cam Data Settings
Event Setup
Task Setup
Data Trace Settings
Tag Data Link Tables
Controller name
Operation authority verification
Built-in clock (time zone setting)
POUs
Data (data types and global variables)
Values of variables with a Retain attribute
Values of the Holding, DM, and EM Areas in the memory for CJ-series Units
Backup parameters for EtherCAT slaves
The set value to restore the actual position of a Servo Drive with an absolute
encoder
Data items
*1
*2
, Parameters in the CJ-series Units
NJ-series CPU Unit Software User's Manual (W501)