![background image](http://html1.mh-extra.com/html/omron/cj1w-drm21/cj1w-drm21_operation-manual_742341187.webp)
5-13
5 Remote I/O Slave Communications
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
5-3 User
-set A
llocation
s
5
5-3-2
Settings through
De
vice V
a
riab
les f
o
r C
J
-ser
ie
s
Unit (S
la
v
e
U
s
er-set Allocations
Setup T
a
b
le)
• Areas and Word Ranges for the OUT 1/IN 1 Areas
Note
You cannot use Holding Area H512 and its subsequent holding areas, or EM Area Bank D and its subse-
quent banks.
Step 4: Change the Slave User-set Allocations Switch to TRUE
Change
*_Sw2SlavAlocCmd
(Slave User Allocations Switch) to TRUE.
Step 5: Change the Slave Enable Switch to TRUE
Change
*_Sw2SlavEnblCmd
(Slave Enable Switch) to TRUE. This will allocate the above areas as
slave areas and the DeviceNet Unit will start slave remote I/O communications.
Note
Once slave communications are enabled by changing the Slave Enable Switch to TRUE, the
Unit will continue to perform slave communications even after the power is turned OFF and
back ON again.
This example uses the following settings for unit number 0.
*_SlavAlocTblCfg[4]
UINT
First word in slave IN 1 area
0 to 32767
*_SlavAlocTblCfg[5]
UINT
IN 1 area size
0 to 200
*_SlavAlocTblCfgSta
WORD
Setting Results of Slave User-set
Allocations Setup
16#0000 to
FFFF
Code
Area name in memory for
CJ-series Unit
Word range
0
---
The block is not used.
1
CIO Area (CIO)
0 to 6143
3
DM Area (DM)
0 to 32767
4
Word Area (WR)
0 to 511
5
Holding Area (HR)
0 to 511
8 to 20
Expansion Data Memory (EM)
Bank 0 to C (13 banks)
0 to 32767 (E0_00000 to E0_32767,
... , EC_00000 to EC_32767) for all
banks
Example Settings for User-set Allocations through Device Variable
for CJ-series Unit
Name of device variables for
CJ-series Unit
Type
Name
Range
Slave User Allocations Setup Table
Slave output (OUT) area
Master
OUT area
Master
IN area
15
0
Bit
First word
specified
to
Slave input (IN) area
15
0
Bit
First word
specified
to
to
to
: Specify the first word.
: Specify the size.
Specify the
first word.
Specify the first word.
Specify the size.
Specify the size.
Name of device variables for CJ-series Unit
*_SlavAlocTblCfg[0]
*_SlavAlocTblCfg[1]
*_SlavAlocTblCfg[2]
*_SlavAlocTblCfg[3]
*_SlavAlocTblCfg[4]
*_SlavAlocTblCfg[5]
Name
Slave OUT 1 area
First word in slave OUT 1 area
OUT 1 area size
Slave IN 1 area
First word in slave IN 1 area
IN 1 area size
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: ......