IDEC SmartRelay functions
165
IDEC SmartRelay Manual 
4.4.13 Up/down counter
Short description
An input pulse increments or decrements an internal value, 
depending on the parameter setting. The output is set or re
-
set when a configured threshold is reached. The direction of 
count can be changed with a signal at input Dir.
Symbol in
IDEC 
SmartRelay
Wiring Description
Input R A signal at input R resets the 
internal count value to zero.
Input Cnt The function counts the 0 to 1 
transitions at  input Cnt. 1 to 0 
transitions are not counted.
Use 
• inputs I5/I6 for high-speed 
counting (only FL1D-
H12RCE/FL1D-B12RCE 
and FL1D-H12SND): max. 
2 kHz.
• any other input or circuit 
component for counting low 
frequency signals (typ. 4 
Hz).
Input Dir You set the direction of count 
at input Dir:
Dir = 0: Up count 
Dir = 1: Down count
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