Mitsubishi Q Series Programming Guide

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4 SFC PROGRAM CONFIGURATION
MELSEC-Q
(4) Block STOP processing
The following processing is performed when a block STOP request is issued to the
corresponding block using the STOP/RESTART bit of the SFC information devices or the
block STOP instruction of the SFC control instructions.
• STOP status timing
A STOP status is established after the block STOP request output occurs, and processing
returns to the beginning of the block in question.
• Coil output
A coil output OFF or HOLD status will be established, depending on the output mode setting
(see Section 4.7.3) at the time of the block STOP designated in the SFC operation mode.
However, an ON status will be maintained for coil outputs which were switched ON by the
SET instruction.
POINTS
(1) When the transition condition immediately before the corresponding step is satisfied or
when the step is reactivated by a JUMP transition, a transition will occur again when the
transition condition is satisfied.
(2) Double STARTs do not apply to reactivated steps.

Mitsubishi Q Series Specifications

General

I/O Points	Up to 4096 points
Communication	Ethernet, RS-232, RS-485
I/O Modules	Digital, Analog, Specialized
Programming Language	Function Block Diagram, Structured Text
Power Supply	24V DC, 100-240V AC
Operating Temperature	0°C to 55°C
Shock Resistance	147 m/s2 acceleration, 3 times in each of X, Y, and Z directions
Program Capacity	Up to 252K steps