Features; Features Of Motion Sfc Programs - Mitsubishi Electric Melsec Q Series Programming Manual

1 OVERVIEW

1.2 Features

1.2.1 Features of Motion SFC programs

The Motion CPU and Motion SFC program have the following features.
(1) Since a program intelligible for anyone can be created in flow chart form by
making a sequence of machine operation correspond to each operation step,
maintenance nature improves.
(2) Since transition conditions are judged with Motion CPU side and positioning starts,
there is not dispersion in the response time influenced by PLC scan time.
(3) High speed and high response processing is realizable with the step processing
method (only active steps) of Motion SFC.
(4) Not only positioning control but also numerical operations, device SET/RST, etc.
can be processed with Motion CPU side, making via PLC CPU is unnecessary
and a tact time can be shortened.
(5) By transition condition description peculiar to Motion SFC, the instructions to servo
amplifier is possible at completion of starting condition.
(6) By transition condition description peculiar to Motion SFC, after starting, transition
to next step is possible without waiting for positioning completion.
(7) Motion SFC program that responds it at high speed for interrupt input from
external source can be executed.
(8) Motion SFC program can be executed in the fixed cycle (Min. 0.22ms:
Q17 DSCPU use) by synchronizing to the Motion operation cycle.
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