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8. COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
piiq
The range of device numbers (up to the 28th block) that can b e designated with the NR
or
NW
commands is shown below
Device No.
Objective Block
I
Device No.
Objective B l o c k
R O
11 4688
1 st block
to
R O
15th block
R8191
R O
122880
2"d b""
1
to
131071
R O
block
R8191
17th block
R8191
R O
131 072
3rd block
to
1
1
1
139263
R O
139264
4th block
" e l ; 7
1
to
147455
18th block
I
R8191
to
R O
147456
5th block
to
1
R 8 1 ; :
1
155647
R O
19th block
R8191
R O
155648
6th block
to
1
I
1
163839
R O
20th block
R8191
1
R O
163840
7th block
Leal;;
1
to
172031
R O
21 st block
R8191
172032
8th block
R8191
180223
R O
22nd block
R8191
R O
180224
9th block
to
1
8
1
188415
R O
23rd block
R8191
1
R O
188416
l o t h block
to
1
1
1
196607
24th block
I
to
R0
R8191
25th block
R8191
R O
196608
11 th block
to
R O
204800
12th block
to
I
1
I
2 1
, l
R O
26th block
R8191
21 2992
13th block
R8191
221 183
R O
27th block
R8191
R O
221184
14th block
to
1
1
1
229375
R O
28th block
R8191
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