Mitsubishi MELSEC Q Series Programming Manual page 765

(a) If the value of n has been designated as 23560, the data at the lower 8 bits of ZR11780
will be read.
n
23560
(b) If the value of n has been designated as 43257, the data at the upper 8 bits of ZR21628
will be read.
43257
n
Operation Error
(1) In the following case, an operation error occurs, the error flag (SM0) turns ON, and an error
code is stored into SD0.
• A device number (serial byte number) that exceeds the range of allowable designations
has been designated.
Program Example
(1) The following program reads the lower bits of ZR16000 and the upper bits of R16003, and
stores results at D100 and D101 when X0 is ON.
[Ladder Mode]
[Operation]
Serial byte No. 32000
(Lower bits of R16000)
Serial byte No. 32007
(Upper bits of R16003)
Read destination
b15 b8 b7
designation
ZR11780
43
H
Read destination
b8 b7
b15
designation
93
ZR21628
H
b15
R16000 8F
H
R16001 42
H
R16002 12
H
R16003 93
H
b0 b15
21 D
H
Data is stored
b0 b15
D
42
H
Data is stored
[List Mode]
Step Instruction
b8 b7 b0 b15
25 D100 00
H
32 D101 00
H
34
H
00
H
ZRRDB(P)
b8 b7 b0
00 21
H H
b8 b7
b0
00 93
H H
(Error code: 4101)
Device
b8 b7 b0
25
H H
93
H H
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