Omron CJ1W-DRM21 - Differences in Available Functions Depending on the CPU Unit (NJ or CJ Series; A-1-1 Functional Differences; A-1-2 Differences in Accessing from User Program; Differences in Available Functions Depending on the CPU Unit

Appendices
A-2
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
A-1 Differences in Available Functions
Depending on the CPU Unit (NJ or
CJ Series)
Some of the specifications when a DeviceNet Unit is connected to a CJ-series CPU Unit are different
from the specifications when the DeviceNet 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 a
DeviceNet Unit is connected to a CJ-series CPU Unit and when the DeviceNet Unit is connected to an
NJ-series CPU Unit.
The following function cannot be used when the DeviceNet Unit is connected to an NJ-series CPU Unit.
• DeviceNet Configurator connection (Use the CX-Integrator instead.)
The names of the following functions are different between when a DeviceNet Unit is connected to a
CJ-series CPU Unit and when the DeviceNet 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.
When this Unit is operated with an NJ-series device, a user program accesses various functions pro-
vided by the DeviceNet Unit through device variables for CJ-series Unit that specifies AT specification
for the memory used for CJ-series Unit.
The device variables for CJ-series Unit in the NJ-series CPU Unit's memory for CJ series Unit that cor-
respond to the addresses and bit positions in the CJ-series CPU Unit's I/O memory are listed below.
First word in Special I/O Unit CIO Area: n = CIO 1,500 + Unit number × 25 (Unit number: 0 to 15)
First word in Special I/O Unit DM Area: m = D30,000 + Unit number × 100 (Unit number: 0 to 15)
z CIO n (Software Switch 1)
The device variable for CJ-series Unit that corresponds to all bits of a word starting with CIO n is as
follows:
A-1-1 Functional Differences
Unsupported Functions
Functions with Different Names
Item
DeviceNet Unit connected to a CJ-series
CPU Unit
DeviceNet 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 backup function *
A-1-2 Differences in Accessing from User Program
CPU Bus Unit Words Allocated in CIO Area