Fuji Electric FRENIC-HVAC User Manual page 563

Data
100 Hold + General-purpose timer Hold function of previous values of 2 inputs and 1
to
105
110 Increment counter
120 Decrement counter
130 Timer with reset input
The block diagrams for individual functions are given below.
(data = 1) Through output
General-purpose timer
Output
Input 1
Input 2
(data = 4) XOR
Input 1
General-purpose timer
Output
Input 2
Function
output, plus general-purpose timer.
If the hold control signal is OFF, the logic circuit
outputs input signals; if it is ON, the logic circuit
retains the previous values of input signals.
Increment counter with reset input.
By the rising edge of an input signal, the logic circuit
increments the counter value by one. When the
counter value reaches the target one, the output signal
turns ON.
Turning the reset signal ON resets the counter to zero.
Decrement counter with reset input.
By the rising edge of an input signal, the logic circuit
decrements the counter value by one. When the
counter value reaches zero, the output signal turns
ON.
Turning the reset signal ON resets the counter to the
initial value.
Timer output with reset input.
If an input signal turns ON, the output signal turns ON
and the timer starts. When the period specified by the
timer has elapsed, the output signal turns OFF,
regardless of the input signal state.
Turning the reset signal ON resets the current timer
value to zero and turns the output OFF.
(data = 2) AND
Input 1
General-purpose timer
Input 2
(data = 5) Set priority flip-flop
General-purpose timer
Flip-flop
Input 1
S Q
R
Input 2
6-253
6.3 Details of Function Codes
Description
(data = 3) OR
Input 1
General-purpose timer
Output
Input 2
Previous
Input 1 Input 2
output
Output
OFF
OFF
OFF
ON
ON
－
ON
－ －
Output
Output Remarks
Hold previous
OFF
value
ON
OFF
ON Set priority