Mitsubishi Electric MELSEC-Q Series - Page 348

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● Use the file register (ZR) when specifying the extended data register (D) or extended link register (W) that is outside the
area of the own station CPU's data register (D) or link register (W). (Except for the Universal model QCPU)
For the calculation of the file register (ZR), refer to the following.
(2) Control data
Control data of the SREAD instruction are the same as those of the READ instruction. ( Page 335, Section
9.3 (2))
(3) Function
(a) SREAD instruction overview
The SREAD instruction reads out word device data (in and after (S2)) of the target station to word devices of
the own station (in and after (D1)).
The target station is specified in Target station network No. ((S1)+4) and Target station No. ((S1)+5) of control
data.
Upon completion of reading the data specified in (S2), the following devices turn ON.
• Own station: Completion device (D2)
• Target station: Read notification device (D3)
User's Manual (Function Explanation, Program Fundamentals) for the CPU module used
When 0K point is assigned to the data register (D) of another station CPU, and when all 32K points of the file
register (ZR) are assigned to the extended data register (D)
Ex.
ZR12288
ZR12287
ZR0
Own station CPU
*1
Data register
Other station CPU
Extended
data register
*1 A file register whose capacity is 32K points or more is required for the own station's CPU.
ZR32767
Specify with D0 to 12287.
Specify with ZR12288 to 32767.
D12287
D12288
D32767
D0
D12287
D0
Channel 1
Channel n
Channel 10
CC-Link IE Controller
Network module
CPU module CPU module
Network
module
(D1) (S2)
[Own station] [Target station]
SREAD