Command Buffer <Bfm #20 To 22> (Read / Write) - Mitsubishi Electric FX2N-32ASI-M User Manual

FX2N-32ASI-M AS-interface Master Block Allocation of Buffer Memories (BFMs) 5.
5.9 Command Buffer <BFM #20 to 22> (Read / Write)
By using the Command Buffer, programmable controller is able to instruct the 32ASI-M as
shown in table 5.9. If the programmable controller writes data in Command Word (BFM #20),
the 32ASI-M reads the Command Word and, if necessary, one or two Data Words (BFM
#21,22). The result (BFM #20) is set to "pending". If the desired command is executed by the
32ASi-M, the result is set and, the value is no longer "Pending". Results with data are
transmitted in Data Word 0 and 1 (BFM #21, 22). For example program, refer to subsection
5.9.3.
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