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15 NETWORK COMMON INSTRUCTIONS
15.1 Link Dedicated Instructions
■Applicable devices
*1 FX and FY cannot be used.
*2 FD cannot be used.
*3 T, ST, C, and FD cannot be used.
• The SREAD instruction cannot be executed when the target station is ACPU.
• Specify the own station start device (d1) for storing the data that has been read, by considering the range in
which the data that has been read can be stored.
(Example: When areas D150 and after in the own station CPU module are already in use)
• When the target station for which the SREAD instruction is executed is the Basic model QCPU, the read
notification device for the target station specified by argument (d3) is ignored. The operations of the SREAD
instruction are the same as those of the READ instruction.
• The SREAD instruction can be programmed by omitting argument (d3). However, the operations are the
same as those of the READ instruction. The operations of the SREAD instruction can be selected according
to whether (d3) is omitted or not.
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B,
SB, FX, FY
J\ T, ST, C, D,
W, SD, SW,
FD, R, ZR,
RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $ J U
(J/U) JP.SREA
D
GP.SREA
D
(s1)
*2
(s2)
(d1)
*2
(d2)
*1
*3
(d3)
D50
D0
D99
D0
D99
D100
D150
D199
D149
D150
Good example
(D50 is specified by (d1).)
Bad example
(D100 is specified by (d1).)
100 words100 words
CPU module on
the own station
CPU module on
the target station
CPU module on
the own station
CPU module on
the target station
: Data to be read by using the SREAD instruction
: Area that has already been used in the CPU module on the own station
: Overlapping area
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