Low-Speed Cyclic Transmission Function - Mitsubishi Electric SW0DNC-MNETH-B User Manual

12 APPLICATION FUNCTIONS

12.2 Low-Speed Cyclic Transmission Function

12
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POINT
The Q00J/Q00/Q01CPU does not support the low-speed cyclic transmission
function. Therefore, the low-speed cyclic transmission function cannot be used in
MELSECNET/H that connects the Q00J/Q00/Q01CPU.
The low-speed cyclic transmission function is convenient when sending data that does
not require high-speed transfer to other stations in a batch mode using the cyclic
devices (LB/LW).
A station can transmit data only once in a single link scan. Simultaneous data
transmission from multiple stations requires more scan time than the following:
Low-speed cyclic link scan time = normal link scan time
+ 1)
In the low-speed cyclic transmission, send range for each station is set with the
"Common parameters setting (B, W setting)" screen of the MNETH utility.
Low-speed cyclic send range for each station
The sending to other stations can be activated by three methods: 1): "Transmit data of
one station in 1 scan", 2): "Fixed term cycle interval setting", and 3):" System times"
and those three method are set in the "Common parameter setting" screen (bus
setting).
Only one of them can be selected.
MELSEC
(number of send stations
1)
2)
3)
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