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1-7
1 Features and System Configuration
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
1-2 Sp
ecific
a
tion
s
1
1
-2-1
De
viceNet Un
it
1-2
Specifications
z
General Specifications
General specifications of the CJ-series DeviceNet Unit conform to those of the NJ-series CPU Units.
z
Functional and Performance Specifications
1-2-1
DeviceNet Unit
Item
Specification
DeviceNet Unit model
CJ1W-DRM21
Applicable Controller
NJ Series
Unit classification
CPU Bus Unit
Applicable unit numbers
0 to F
Mounting position
CPU Rack or Expansion Rack
No. of
Masters
that you
can
mount
Fixed allocations
3 Units max. (You must allocate unique words with the use of device variables for
CJ-series Unit (for software switch).)
User-set allocations
By CX-Integrator
16 Units max. (You must allocate unique words with the use of CX-Integrator.)
By device vari-
ables for CJ-
series Unit
16 Units max. (You must allocate unique words with the use of device variables
for CJ-series Unit (user setup tables).)
No. of
Slaves
that you
can
mount
Fixed allocations
3 Units max. (You must allocate unique words with the use of device variables for
CJ-series Unit (Software Switches).)
User-set allocations
By CX-Integrator
16 Units max. (You must allocate unique words with the use of CX-Integrator.)
By device vari-
ables for CJ-
series Unit
16 Units max. (You must allocate unique words with the use of device variables
for CJ-series Unit (user setup tables).)
No. of Units that you can connect per network
64 Units max.
Words
allo-
cated in
the
memory
used for
CJ-
series
Unit
DeviceNet
remote I/O
communi-
cations
When
used as
a Mas-
ter
Fixed allocations
Fixed words in the CJ-series DeviceNet Area in the CIO Area (one of three set-
tings).
User-set alloca-
tions
Any I/O memory (Set with the use of the device variables for CJ-series Unit or
CX-Integrator.)
When
used as
a Slave
Fixed allocations
Fixed words in the CJ-series DeviceNet Area in the CIO Area (one of three set-
tings).
User-set alloca-
tions
Any I/O memory (Set with device variables for CJ-series Unit or CX-Integrator.)
I/O port (without power OFF retention)
(Access via the device variables for CJ-
series Unit)
25 words/Unit
CPU Unit to DeviceNet Unit: 9 words for the software switches, etc., 6 words for
the status area, 8 words for the registered slaves and normal slaves tables
I/O port (with power OFF retention)
(Access via the device variables for CJ-
series Unit)
100 words/Unit
Scan List User Setup Table, Slave User-set Allocations Setup Table, Master I/O
Allocations Reference Table, Slave I/O Allocations Reference Table, Detailed
Slave Status Table, etc.
CPU Unit to DeviceNet Unit: Table for communications cycle time settings
Other I/O memory (Using the user-
defined variable for R/W to the allocation
area)
Set the allocation size table for all slaves in any area when remote I/O communica-
tions is set to user-set allocations according to the setting in the device variables
for CJ-series Unit.
Supported connections (communications)
•
Remote I/O communications (master and slave): Master/slave connection (poll,
bit-strobe, COS, cyclic)
•
Explicit message communications: Explicit connection
All conform to DeviceNet communications standards.
Содержание CJ1W-DRM21
Страница 12: ...Manual Structure 10 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 42: ...Revision History 40 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 214: ...6 Message Communications 6 26 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 345: ...Index 1 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 I Index ...
Страница 349: ......