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4 WHEN THE QCPU ACCESSES THE OTHER STATION PLC USING THE
DATA LINK INSTRUCTION
QCPU
REQ instruction
communication
request
source station
4 - 36
(3) Instruction examples
(a) A program that writes the clock data (8:30:00) to the Q/QnACPU of station
number 13 using network number 7.
Station No.1
E71
Channel
1
When I/O signals of the Ethernet module are X/Y00 to X/Y1F
Q/QnACPU
REQ instruction
communication
request destination
station
Network No.7
Processing program on instruction
completion
Processing program on normal completion
Processing program on abnormal
completion
MOV
D1
MELSEC-Q
Station No.13
E71
Clock data setting required
Channel used by the local
station
Target station's CPU type
(target CPU)
Target station network number
Target station number
Number of resend
Arrival monitoring time (20 s)
Request data length (6 words)
Request type
Subrequest type
Change pattern
Hour/minute (8:30)
Second (00s)
X19: Initial normal completion
signal
Read error code, etc.
D100
4 - 36
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