Mitsubishi Electric MELSEC-Q Series Programming Manual page 23

Item
SFC Capacity
program
Number of files
Number of blocks
Number of SFC steps
Number of branches
Number of concurrently active steps
(including HOLD steps)
Number of operation output sequence
steps
Number of transition condition sequence
steps
Step transition watchdog timer function
Item
SFC Capacity
program
Number of files
Number of blocks
Number of SFC steps
Number of branches
Number of concurrently active steps
(including HOLD steps)
Number of operation output sequence
steps
Number of transition condition sequence
steps
Step transition watchdog timer function
*1 Refer to Page 150 SFC program for program execution management for the program execution management SFC program.
*2 The maximum number of sequence steps per block depends on the instruction used for operation output or a note editing setting. The
number of steps (2k sequence steps) indicated in the table applies when "Unite (United Note)" is selected for note editing. Note that 2k
sequence steps per block may not be secured when "Peripheral (Peripheral Note)" is selected. If note editing is not set, 2k sequence
steps or more per block may be secured depending on an instruction used.
*3 For the Universal model QCPU whose serial number (first five digits) is "12051" or earlier, the maximum number of SFC steps is 8192
for all blocks.
*4 For the Universal model QCPU whose serial number (first five digits) is "12052" or later, the maximum number of SFC steps can be
changed by changing the step relay (S) points in the Device tab of the PLC parameter dialog box. For settings, refer to the QnUCPU
User's Manual (Function Explanation, Program Fundamentals).
Q20UDHCPU, Q26UDHCPU,
Q20UDEHCPU Q26UDVCPU,
Q26UDEHCPU
Max. 200k steps Max. 260k steps
Scannable SFC program: 1 (normal SFC program only)
Max. 320 blocks (0 to 319)
*3*4
Max. 16384 steps for all blocks , max. 512 steps for one block
Max. of 32
Max. 1280 steps for all blocks, max. 256 steps for one block
Max. 2k sequence steps for one block
One ladder block only
None
L02SCPU, L02SCPU-P, L06CPU, L06CPU-P
L02CPU, L02CPU-P
Max. 20k steps Max. 60k steps
Scannable SFC program: 1 (normal SFC program only)
Max. 128 blocks (0 to 127) Max. 320 blocks (0 to 319)
Max. 1024 steps for all blocks, Max. 8192 steps for all blocks, max. 512 steps for one block
max. 128 steps for one block
Max. of 32
Max. 1024 steps for all blocks, Max. 1280 steps for all blocks, max. 256 steps for one block
max. 128 steps for one block
Max. 2k sequence steps for one block
One ladder block only
None
3.1 Performance Specifications Related to SFC Programs
Q50UDEHCPU
Max. 500k steps
*2
, no restriction on one step
L26CPU, L26CPU-P,
L26CPU-BT, L26CPU-PBT
Max. 260k steps
*2
, no restriction on one step
3 SPECIFICATIONS
Q100UDEHCPU
Max. 1000k steps
3
21