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MELSEC-Q
4 WHEN THE QCPU ACCESSES THE OTHER STATION PLC USING THE
DATA LINK INSTRUCTION
4.8 Reading/Writing Clock Data, Remote RUN/Remote STOP (REQ)
This section explains the format and program examples of the REQ instruction that is
used to read/write clock data and remote RUN/remote STOP of the Q/QnACPU of
other stations.
For details, see Sections 6.7 and 6.8.
(1) Instruction format
[Network number designation]
JP: Execution
during startup
J.REQ
J: Execution
during on
Jn
Execution command
JP.REQ Jn
Execution command
(S1) (S2) (D1) (D2)
(S1) (S2) (D1) (D2)
[Network module/Ethernet module start I/O signal designation]
GP: Execution
during startup
G.REQ
G: Execution
during on
Un
Execution command
GP.REQ Un
Execution command
(S1) (S2) (D1) (D2)
(S1) (S2) (D1) (D2)
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)
Request data storage head device (local station)
Designate the head device of the local station that stores
the request data.
Word device
2
(D1)
Response data storage head device (local station)
Designate the head device of the local station that stores
the response data.
Word device
2
Execution completion device (local station)
Designate the device of the local station to turn on one
scan when the execution is complete.
(D2)
...................
OFF: Incomplete ON: Complete
(D2)
(D2) + 1
.............
OFF: Normal ON: Abnormal
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
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