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MELSEC
4 FUNCTION
4.2 Specifications of the Link Data Sending/Receiving Processing Time
This section explains the link data sending/receiving processing in the MELSECNET/H
network system with MELSECNET/H board.
4.2.1 Link data sending/receiving processing
(1) Link data sending/receiving processing
In the cyclic transmission, communication is performed using the LB/LW/LX/LY
devices of the network module and MELSECNET/H board.
This section explains the case when the link relay (B) is used on the personal
computer side.
1) B0 on the sending station (personal computer) turns on.
2) By a link refresh, the B0 information is stored in the refresh data
storage area (LB) of the MELSECNET/H board.
3) The B0 information in the refresh data storage area (LB) is stored in
the link data storage area (LB).
4) By a link scan, the B0 information in the link data storage area (LB) is
stored in the link data storage area (LB) of the network module on the
receiving station.
5) The B0 information in the link data storage area (LB) is stored in the
refresh data storage area (LB).
6) By a link refresh, the B0 information is stored in the device memory
storage area (B) of the CPU module.
7) B0 on the receiving station turns on.
1: The link refresh interval is set on the "Driver" screen in the MNETH Utility.
2: Set by the GX Developer’s "Station Inherent Parameters." (If not set, they are stored in the common
parameters state.)
3: If the MELSECNET/H board is a control station, it is set in the "Common Parameter Setting" screen in
the MNETH Utility. If the network module is a control station, it is set in the GX Developer’s "Common
Parameters."
4: Set in the GX Developer’s "Network Refresh Parameters."
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Summary of Contents for Q80BD-J71BR11
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