334
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
13 High Speed Processing – FNC 50 to FNC 59
13.5 FNC 54 – HSCR / High Speed Counter Reset
5. Other cautions on using HSCR instruction
→
For the details, refer Subsection 13.4.1.
Program example
1. Example of self-reset circuit
When the current value of C255 becomes "400", C255 is immediately reset. Its current value becomes "0",
and the output contact is set to OFF.
C255
K300
FNC 54
DHSCR
K400
C255
C255
Reset value of DHSCR
400
Count-up value
300
Current value
of C255
Output contact
of C255
Comparison
value
Comparison
source
Output
destination
M8000
RUN monitor