Hitachi FL.NET User Manual page 13

(chapter 5, page 5-49)
When issuing a request to the FL.NET module, do not simultaneously use the
C mode handler and mathematical/logical function.
You cannot specify an index in a parameter (PI/O address.)
(chapter 5, page 5-55)
The server feature of the FL.NET module returns an abnormal response if, on
reception of a word block read request, the virtual size is found exceeding 512
words. The error code used in such an event is 0xFFFFFFFF.
(chapter 5, page 5-57)
The server feature of the FL.NET module returns an abnormal response if, on
reception of a word block write request, the virtual size is found exceeding 512
words or conflicting with the data size. The error code used in such an event is
0xFFFFFFFF.
(chapter 5, page 5-64)
When rewriting the network parameters, take extreme care not to cause any
setting duplication to the common memory.
The server feature of the FL.NET module returns an abnormal response if,
upon reception of a network parameter write request, the parameter selection
flag is found to be not between 1 and 3. The error code used in such an
event is 0xFFFFFFFF.
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NOTICE
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