Mitsubishi QJ71GP21-SX, Reference Manual

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9
DEDICATED INSTRUCTIONS
9.4 JP/GP.SREAD
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9.4 JP/GP.SREAD
The SREAD instruction reads data from devices of a programmable controller on another
station. (In units of words)
With the SREAD instruction, a device on another station turns ON when data reading is
completed. (The other station can recognize that data have been read out with the SREAD
instruction.)
* 1 T, C, D, W, ST, SD or SW can be used.
* 2 The SREAD instruction can be programmed without argument (D3).
However, in such a case, the operation is identical to the READ instruction.
With the SREAD instruction, different operations are available depending on whether (D3) is
omitted or not.
* 3 When the target station is a Basic model QCPU or safety CPU, the read notification device set as
argument (D3) for the target station is ignored. (Same operation as with the READ instruction)
Table 9.12 Devices available for setting data
Setting
data
Available devices
Internal device
(System, User)
File
register
Link direct device
J \
Intelligent
function module
device
U \G
Index
register Zn
Constant
Others
Bit Word Bit Word K,H $
(S1) — —
(S2) —
*1
—
(D1) — —
(D2) —
(D3) —
Figure 9.16 Instruction format
Figure 9.17 Instruction format (Available when the own station has a Universal model QCPU)
JP.SREAD
Start contact
[Instruction format] [Execution condition] [Instruction symbol]
GP.SREAD
Start contact
JP.SREAD Jn (S1) (S2) (D1) (D2)
GP.SREAD Un (S1) (S2) (D1) (D2)
(D3)
(D3)
*2 *3
*2 *3
JP.SREAD
Start contact
[Instruction format] [Execution condition] [Instruction symbol]
GP.SREAD
Start contact
JP.SREAD Jn (S1) "(S2)" (D1) (D2)
GP.SREAD Un (S1) "(S2)" (D1) (D2)
(D3)
(D3)
*2 *3
*2 *3