Mitsubishi Electric MELSEC-Q Series - JP;GP.SREAD (Data Read from Programmable Controllers on Other Stations)

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9.4 JP/GP.SREAD (Data Read from Programmable
Controllers on Other Stations)
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.
• Instruction format
• Instruction format (Available when the own station has a Universal model QCPU)
*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)
*4 If the device setting in the PLC parameter is different between the own and target stations, use "(S2)" (with double
quotation marks) to specify.
Setting
data
Available devices
Internal device
(System, User)
File
register
R, ZR
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) —
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
*4
*4
[Instruction format][Execution
condition]
[Instruction
symbol]
JP.SREAD
Start contact
GP.SREAD
Start contact
JP.SREAD Jn (S1) "(S2)" (D1) (D2)
GP.SREAD Un (S1) "(S2)" (D1) (D2)
(D3)
(D3)
*2 *3
*2 *3