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MELSEC-Q
4 WHEN THE QCPU ACCESSES THE OTHER STATION PLC USING THE
DATA LINK INSTRUCTION
POINT
(1) When the target station of the SREAD instruction is the Q00J/Q00/Q01CPU,
the read notify device for the target station that is set by an argument (D3) is
ignored. The operation of the SREAD instruction is identical to that of the
READ instruction.
(2) The SREAD instruction can be programmed without the argument (D3), while
the operation is identical to that of the READ instruction. Depending on
whether D3 is omitted or not, the SREAD instruction can be operated
differently.
(b) WRITE, SWRITE instructions
[Network number designation]
JP.SWRITE
JP: Execution
during startup
Jn
JP.WRITE
JP: Execution
during startup
Jn
Write command
Write command
(S1)
(S2)
(D1)
(D2)
(S1)
(S2)
(D1)
(D2)
(D3)
[Network module/Ethernet module start I/O signal designation]
GP: Execution
during startup
Un
GP.WRITE
GP: Execution
during startup
Un
Write command
Write command
(S1)
(S2)
(D1)
(D2)
(S1)
(S2)
(D1)
(D2)
(D3)
GP.SWRITE
Setting details
Setting range
Jn
Local station network number
1 to 239: Network number
254: Network designated in
a valid module for
other station access.
Un
Start I/O signal of the local station network module/Ethernet module.
Designate by higher two digits when the I/O signal is expressed
by three digits.
0 to FE
H
(S1)
Control data storage head device
Designate the head device of the local station that stores the
control data.
Word device
2
(S2)
Write data storage head device (local station)
Designate the head device of the local station that stores the data
to write.
Word device
2
(D1)
Write data storage head device (target station)
Designate the head device of the local station where the data is
written.
Word device
2
Write completion device (local station)
Designate the device of the local station to turn on one scan
when the write is complete.
(D2) ...................
OFF: Incomplete
ON: Complete
(D2)
(D2) + 1 .............
OFF: Normal
ON: Abnormal
Bit device
1
Word device bit designation
3
Write notify device (target station)
Designate the device of the target station to turn on one scan
when the write is complete. (Can recognize data of target station
has been write from other station.)
(D3)
(D3) ...................
OFF: Incomplete
ON: Complete
Bit device
1
Word device bit designation
3
1: Bit device .................................. X, Y, M, L, F, V, B
2: Word device ............................... T, C, D, W, ST, R, ZR
3: Word device bit designation.......
Word device
.
Bit number
Содержание QJ71E71-100 Series
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