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CHAPTER 9 DEDICATED INSTRUCTIONS
9
9.4 JP/GP.SREAD (Data Read from Programmable Controllers on Other Stations)
(1) Setting data
*1 Local devices and file registers for each program cannot be used as devices in setting data.
● Specify devices of the target station's CPU within the range allowed for the own station CPU when reading data from the
devices with the SREAD instruction
(Target station's start device (S2) where data to be read are stored) + (Read points - 1) (End device No. of own station's
CPU
*1
)
*1 End device No. of the device in the own station, and whose device name is same as in (S2)
● Specify the own station's start device (D1) within the range allowed for storing read data.
Setting data
*1
Description Data type
Jn
Network No. of the own station (1 to 239, 254)
254: The network specified in Valid module during other station access
Binary 16 bits
Un
Start I/O number of the own station's CC-Link IE Controller Network module
(00 to FE
H
: The higher two digits of the 3-digit I/O number)
(S1)
Start device of the own station that stores control data
( Page 335, Section 9.3 (2))
Device name
(S2) Target station's start device where data to be read are stored
(D1)
The own station's start device where readout data will be stored
(A contiguous area for the read data length is required.)
(D2)
The own station's device that is turned on for one scan upon completion of the
instruction
(D2)+1 also turns ON if the instruction execution has failed.
Bit
(D3)
The target station's device that is turned on for one scan upon completion of the
instruction. (The target station can recognize that data have been read out with
the SREAD instruction.)
When D150 and after the area in the own station's CPU has been already used
Ex.
Good example (D50 is specified to (D1).) Bad example (D100 is specified to (D1).)
D50
D0
D99
D0
D99
100 words100 words
D100
D150
D199
D149
D150
Own station CPU Other station CPU Own station CPU Other station CPU
: Data to be read with SREAD instruction
: Area already used by own station's CPU
: Duplicated area
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