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User-set Allocations Section 4-4
d) The start bit for node addresses can be bit 00 or bit 08. If it is bit
08 however, 2 or more bytes cannot be allocated as shown below.
e) Multiple masters cannot share the same slave.
You can determine whether there are duplicate node addresses in the
I/O allocations (scan lists) that were created simply by conducting a
master parameter file duplicate check from the Configurator.
f) Be sure to use user-set allocations and operate with the scan list
enabled if multiple masters are connected to a single network. A
Bus OFF errors will occur if multiple fixed allocations masters op-
erating with the scan list disabled are present on a single network.
g) Multiple Master Units can be included in a single PC as shown be-
low using user-set allocations (16 Units max.).
Note Use Configurator Ver. 2.10 or later for the CJ1W-DRM21.
Example of User-set Allocations Using the Configurator
Start byte
Master
Slave
Master
Master Unit
Slave
Master Unit
Slave
Slave types
16 output pts
Combination of 8 input
and output pts
Combination of 16 input
and output pts
8 input pts
32 output pts
Slave types
48 input pts
8 input pts
Combination of 8 output
and 16 input pts
Node
address
setting
Node
address
setting
Allocation status
Node
address
Output Input
Output Input
OUT area
OUT block 1
IN block 1
Allocation (00)
Allocation (01) Not used
Allocation (02)
Allocation (01) Allocation (03)
IN block 2
Allocation (02)
Allocation
Allocation
OUT block 2
Not used
Allocation
Allocation
Allocation
Not used
Allocation (12)
Not used
Allocation (09)
16 pts
8 pts
16 pts
0 pts
32 pts
0 pts
0 pts
8 pts
0 pts
8 pts
16 pts
8 pts
0 pts
8 pts
16 pts
48 pts
(10)
Allocation (12)
15
15 00
00
CIO 1950
CIO 1951
CIO 1952
CIO 1953
CIO 1954
01000
IN area
(04)
15
15 00
00
CIO 1900
CIO 1901
10 wd
11 wd
13 wd
12 wd
14 wd
15 wd
Node
address
00
01
02
03
10
09
12
04
00
01
02
03
10
09
12
04