Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 312

7 APPLICATION FUNCTIONS
Sequence scan
Read command
Host CPU
Read completion device
(Device designated in (D2))
Read completion device
(Device at (D2)+1)
SW0031
Network module
Sequence scan
Write command
Write completion device
(Device designated in (D2))
Host CPU
Write completion device
(Device at (D2)+1)
Write data storage device
(Device designated in (S1))
SW0033
Network module
7 - 88
2) Abnormal completion
[ZNRD instruction]
ZNRD
0 END 0
ON
OFF
OFF
OFF
Channel 1(fixed)
Target station
error
[ZNWR instruction]
ZNWR
0 END 0
ON
OFF
OFF
OFF
3000
Channel 2(fixed)
Target station
error
END 0 END 0
OFF
ON
ON
One scan
Error code
END 0 END 0
OFF
ON
ON
One scan
Error code
MELSEC-Q
END 0 END
OFF
OFF
END 0 END
OFF
OFF
7 - 88