Filter
Top Products
6 Step Ladder Instructions
6.1 Step Ladder
96
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
• Example of selective recombination
Do not use MPS, MRD, MPP, AND (…) and OR (…) instructions in a transfer processing program with
branches and recombination.
Even in a load driving circuit, MPS instructions cannot be used immediately after STL instructions.
Pay attention to the programming order so that a branch line does not cross a recombination line.
Before recombination, program the drive processing of state relays first.
After that, program only the transfer processing to recombination state relays continuously.
This rule should be observed to enable inverse conversion into an SFC program.
• Example of parallel branch
Do not use MPS, MRD, MPP, AND (…) and OR (…) instructions in a transfer processing program with
branches and recombination.
Even in a load driving circuit, MPS instructions cannot be used immediately after STL instructions.
In the same way as programs for general state relays, program the drive processing first, and then
program the transfer processing.
Continuously program all transfer processing.
Drive processing
Transfer processing
Y010
S29
STL
EN ENO
s
Y012
S49
STL
EN ENO
s
Y011
S39
STL
EN ENO
s
S29
STL
EN ENO
s
SET
EN ENO
d S50
X010
S49
STL
EN ENO
s
SET
EN ENO
d S50
X012
S39
STL
EN ENO
s
SET
EN ENO
d S50
X011
Drive processing
Transfer processing
Y001
S20
STL
EN ENO
s
SET
EN ENO
d S21
X000
SET
EN ENO
d S31
SET
EN ENO
d S41