Flicker Block - Mitsubishi Electric a2 Series Programming Manual

α
2 Simple Application Controllers
6.9

Flicker Block

The function block provides a method to give a patterned ON/OFF Output signal. The user can
set independent ON and OFF times for the Output. The output pattern can be dependent on an
input signal, or can be performed for a preset cycle time or number of repetitions.
Table 6.10: Flicker Function Block
Function
0 0 0
I P O
F L
Note: The set time cannot be less than one scan time for the controller; otherwise, the
Flicker Function Block will not perform its assigned task for the time specified. Users
can monitor the scan time from the
the user-program; therefore, caution is needed as and when time units are selected.
Flicker Operation
1 ) Continuous control action
Input pin I
ON
Output
On time
2 ) Frequency control action
Input pin I
ON
Output
once
On time
Set Item
I Input pin for flicker operation
The following three set items exist:
1) The applicable range for the turning the output ON is 0s to 32767s
Time intervals are 10ms, 100ms or 1s (*Note)
2) The applicable range for the turning the output OFF is 0s to 32767s
FB Time intervals are 10ms, 100ms or 1s (*Note)
3) Blinking operation
a) Cycles count (frequency assigned operation) maximum
b) Time count maximum 32767
c) Continuous control
The control operations provides an ON/OFF state for the output.
1) The output state directly reflects the ON and OFF condition of the
input signal at the input pin.
2) The following items are available for other function blocks:
Output
a) On Flicker
b) Current On Flicker
c) Off Flicker
d) Current Off Flicker
e) Cycle or Time
f) Current Cycle or Time
ON OFF
OFF
Off time
registered number of times
OFF
twice three
times
Off time
number of cycles to be set is 32767
α
2 Series Controller. Scan time is dependent on
Off time
On time On time
ON OFF
once
Off time
On time
Description
Off time
once twice
Off time
On time
Function Blocks 6
6 - 18