Delayed Alternate Block - Mitsubishi Electric a2 Series Programming Manual

α
2 Simple Application Controllers
6.33

Delayed Alternate Block

The function block is used to generate a delayed alternate pulse to the output pin of the
function block.
Table 6.47: Delayed Alternate Function Block
Function
0 0 0
I P O
C
D A L
Note: The delay time cannot be less than one scan time for the controller; otherwise,
the Delayed Alternate Function Block will not perform its assigned task for the time
specified. Users can monitor the scan time from the
dependent on the user-program; therefore, caution is needed as and when time units
are selected.
1 ) Delayed Alternate Operation
Input pin
Clear pin
Output pin
2 ) Delayed Alternate sample program
I
I01
CL
I02
3 ) Delayed Alternate comparison sample program
I01
I
CL
I02
Set Item
I Input pin for delayed alternate function block
C Clear pin for delayed alternate function block
1) Time units: 10ms, 100ms or 1s (*Note)
FB
2) Delay Time range: 0 to 32767
The following items are available for another function block:
1) Word Output
a) Delay set value
b) Current value of delay time
Output 2) Bit output
a) The delay action occurs after the function block sees the rising
edge of the input signal.
b) After the specified Delay time, the Output signal changes state
c) When the Clear Input signal sets ON, the Current Delay Time is
cleared and the Output signal will reset OFF.
OFF ON
Delayed Delayed
Time Time
DAL
• Delay Time: 1s
I
DL AL
CL
• ON Delay Time:
1s (10 × 100ms)
• OFF Delay Time:
0s (0 × 100ms)
Description
OFF
Reset delayed timer
(shorter than set time)
O02
O02
Function Blocks 6
α
2 Series Controller. Scan time is
Delayed Reset delayed timer
Time (shorter than set time)
6 - 92
Reset
Output pin