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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)
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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]
Execution command
J.REQ
Execution command
JP.REQ
[Network module/Ethernet module start I/O signal designation]
Execution command
G.REQ
Execution command
GP.REQ
Jn
Local station network number
Start I/O signal of the local station network module/Ethernet
module.
Un
Designate by higher two digits when the I/O signal is
expressed by three digits.
Control data storage head device
(S1)
Designate the head device of the local station that stores
the control data.
Request data storage head device (local station)
(S2)
Designate the head device of the local station that stores
the request data.
Response data storage head device (local station)
(D1)
Designate the head device of the local station that stores
the response data.
Execution completion device (local station)
Designate the device of the local station to turn on one
scan when the execution is complete.
(D2)
(D2) ................... OFF: Incomplete
(D2) + 1 ............. OFF: Normal
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 ......
Jn
(S1)
(S2)
(D1)
Jn
(S1)
(S2)
(D1)
Un
(S1)
(S2)
(D1)
Un
(S1)
(S2)
(D1)
Setting details
ON: Complete
ON: Abnormal
.
Word device
Bit number
MELSEC-Q
J: Execution
(D2)
during on
JP: Execution
(D2)
during startup
G: Execution
(D2)
during on
GP: Execution
(D2)
during startup
Setting range
1 to 239: Network number
254: Network designated in a
valid module for other
station access.
0 to FE
H
2
Word device
2
Word device
2
Word device
1
Bit device
Word device bit designation
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3
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