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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
13 High Speed Processing – FNC 50 to FNC 59
13.1 FNC 50 – REF / Refresh
Cautions
1. Setting the number of refreshed points "n"
Set a multiple of 8 such as "K8 (H8), K16 (H10) … K256 (H100)". Any other numeric value causes an error.
2. Setting the head device number (D)
Make sure that the least significant digit number is "0" such as "X000, X010, X020 …"or " Y000, Y010, Y020 …"
Program examples
1. When refreshing inputs
Only X010 to X017 (8 points in total) are refreshed.
2. When refreshing outputs
Y000 to Y007, Y010 to Y017 and Y020 to Y027 (24 points in total) are refreshed.
ON
ON
20ms5ms
10ms 10ms
Does not turn ON.
ON
10ms
Input signal (X)
Filter time
Input refresh
REF instruction + END processing
END instruction (input) processing
Input terminal
REF instruction (executed)
Only END processing
Improved response
delay time
X000
FNC 50
REF
X010 K 8
D
n
X001
FNC 50
REF
Y000 K 24
D
n