Hitachi S10mini User Manual page 104

5 USER GUIDE
5.4.4 Using word data
The FL.NET module does not perform bit conversion when transmitting or receiving the data of the
common memory area 2. It transfers the data to the network without changing its arrangement on
the S10mini or S10V, so the data received from the other nodes is transferred as it is.
5.4.5 Using message communications
(1) Message communication (server side)
When the FL.NET module receives a message request from another node, it processes the
message within itself. The user does not have to pay attention to it.
However, when the FL.NET module receives a transparent message, it notifies the user of the
transparent message reception via the self-node status flag and transparent reception flag. For
details, see item (4), "Transparent message reception."
When a transparent message is received, use a C mode program or mathematical/logical
function to fetch it from the FL.NET module.
If the FL.NET module is filled with transparent messages, it may not be able to process any
more request messages.
(2) Message communication (client side)
When requesting a message for another node (or receiving a transparent message), it is
necessary to issue a request to the FL.NET module from a C mode program or
mathematical/logical function.
The FL.NET module offers a C mode handler and mathematical/logical function as a means of
issuing a message request.
The procedures for using a C mode program or ladder program to issue a message request are
explained below:
Note: For message communication, an environment for permitting a user program to reference the
self-node status flag is required.
Set up a self-node status flag area from the self-node setup window of the setup tool named
[FL.NET For Windows®]. For detailed procedure descriptions, See "5.6 Operating
Method."
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