Differences In Available Functions Depending On The Cpu Unit (Nj/Cj-Series) To Be Connected; Differences In Available Functions; A-1-2 Differences In Accessing From User Program - Omron CJ1W-CORT21 Operation Manual

Appendices
A-1

Differences in Available Functions

Depending on the CPU Unit (NJ/CJ-
series) to be Connected
A-1-1 Differences in Available Functions
Some functions available to the CJ series may be unavailable when you operate this Unit with the NJ
series.
Note This manual describes the information you must know when using CJ1W-CORT21 by connect-
ing it to NJ-series CPU Unit. You can use FINS message communications with NJ-series, but
not all areas of the NJ-series CPU Unit can be accessible. If you need to use these functions,
such as to connect to existing equipment, please consult with your OMRON representative.
A-1-2 Differences in Accessing from User Program
When this Unit is operated with an NJ-series device, a user program accesses various functions pro-
vided by the User Defined CAN Unit through device variables for CJ-series Unit that specifies AT spec-
ification 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)
CPU Bus Unit Words Allocated in CIO Area
 CIO n (Enable CAN Communications)
The device variable for CJ-series Unit that corresponds to all bits of a word starting with CIO n is as
follows:
CJ-series I/O memory address
Word address
CIO n
 CIO n+3 (Status Communication)
The device variable for CJ-series Unit that corresponds to all bits of a word starting with CIO n+3 is
as follows:
CJ-series I/O memory address
Word address
CIO n+3 0 to 15
A-2
Bit Variable name
04 *_EnblCANComm
Bit Variable name
*_StaComm
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
NJ-series device variables for CJ-series Unit
Enable CAN Communications (The functions of bit 4 of a
word starting with CIO n correspond to that of bit 4 of this
device variable for CJ-series Unit.)
NJ-series device variables for CJ-series Unit
Status Communication (The functions of bits 0 to 15 of a
word starting with CIO n+3 correspond to those of bits
0 to 15 of this device variable for CJ-series Unit.)
Description
Description