Omron CJ1W-EIP21 - Differences in Available Functions Depending on the CPU Unit (NJ or CJ Series; A-6-1 Functional Differences; A-6-2 Differences in Access Methods from the User Program; Differences in Available Functions Depending on the CPU Unit

Appendices
A-24
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
A-6 Differences in Available Functions
Depending on the CPU Unit (NJ or
CJ Series)
Some of the specifications when an EtherNet/IP Unit is connected to a CJ-series CPU Unit are different
from the specifications when the EtherNet/IP Unit is connected to an NJ-series CPU Unit. A list of these
differences is provided below.
There are differences in function support, function names, and specifications between when an Ether-
Net/IP Unit is connected to a CJ-series CPU Unit and when the EtherNet/IP Unit is connected to an NJ-
series CPU Unit.
The following functions cannot be used when the EtherNet/IP Unit is connected to an NJ-series CPU
Unit.
• EtherNet/IP Datalink Tool in the Network Configurator
• Going online with the CPU Unit from the Sysmac Studio through the EtherNet/IP Unit (You can go
online from the Network Configurator.)
The names of the following functions are different between when an EtherNet/IP Unit is connected to a
CJ-series CPU Unit and when the EtherNet/IP Unit is connected to an NJ-series CPU Unit. The corre-
sponding names are listed in the following table.
* An NJ-series CPU Unit with unit version 1.03 or later and Sysmac Studio version 1.04 or higher are required.
Precautions for Correct UsePrecautions for Correct Use
Use an EtherNet/IP Unit with a unit version of 2.1 or later for an NJ-series CPU Unit. Also use a
NJ-series CPU Unit with unit version 1.01 or later and Sysmac Studio version 1.02 or higher.
When the EtherNet/IP Unit is used with an NJ-series CPU Unit, device variables for CJ-series Units
with AT specifications in memory for CJ-series Units are used in the user program to access the func-
tions of the EtherNet/IP Unit. The word addresses, bit numbers, and device variables for the CJ-series
Unit in I/O memory in the CJ-series CPU Unit and in the memory for CJ-series Units in the NJ-series
CPU Unit are given in the following tables.
First word allocated in the CIO Area: n = 1,500 + Unit number × 25 (The unit number is from 0 to 15.)
First word allocated in the DM Area: m = D30000 + Unit number × 100 (The unit number is from 0 to
15.)
A-6-1 Functional Differences
Unsupported Functions
Functions with Different Names
Item
EtherNet/IP Unit connected to a CJ-
series CPU Unit
EtherNet/IP Unit connected to an NJ-series
CPU Unit
Backup functions Simple backup function
SD Memory Card backup function
*
Backup with PLC backup tool
Sysmac Studio Controller backups
*
A-6-2 Differences in Access Methods from the User Program