Mitsubishi Q Series Programming Guide

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4 SFC PROGRAM CONFIGURATION
MELSEC-Q
(4) Couplings must be provided when the parallel transition format is used. Program creation is
impossible without couplings.
Example: Program without couplings (Cannot be designated)
END step
END step
Each column ends
at the END step.
Jump transition (see Section 4.3.4)
occurs without coupling
Jump
(5) As a rule, a waiting step must be created prior to the coupling.
However, in cases such as the example below where each of the parallel transition columns
consist of only 1 step (program without a transition condition between the parallel transition
branch and the coupling), a waiting step is not required.

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