Panasonic FP-M Hardware Manual page 12

1-1. Features and Functions
Interrupt input function
This function executes an interrupt program immediately after an external interrupt input (minimum pulse width of
0.2 ms) occurs, regardless of the input timing. It enables high-speed processing at a fixed timing and is not affected
by scan time. Therefore it is useful when performing control which would be disrupted by variations in processing
time due to such factors as timing synchronization.
• Timing control on a board inspection line
Immediately executes interrupt program
when an edge detection signal comes in
by interrupt input from sensor 1. Sensor 2
inspects the part, and if an abnormality is
detected, the conveyor stops and the
abnormality is reported.
Pulse catch input function
This function catches input pulse signals
down to a minimum width of 0.5 ms. It is
effective for situations such as when the
sensor detects the moving target at a
high-speed.
Adjustable input time filtering function
This function allows the input response
time (input time constant) of the control
board to be changed within a range of 1
to 128 ms in accordance with the input
device connected. This prevents input
errors due to such causes as limit switch
chattering noise.
Manual dial-set register control function
This function makes it possible to change the values of special data registers DT9040 and DT9041 within a range of
0 to 255 using the potentiometers on the control board. Input settings involving analog-type numerical data such as
analog timer and pulse output frequency changes can be performed.
FP-M control board
Potentiometers
(V0 and V1)
V0 V1
RUN REMOTE PROG.
4
FP-M control board
Motor
(B
drive
RUN PROG. E
Interrupt input
signal
Stop signal
Motor
FP-M control board
Limit switch
Limit
switch
FP-M
control
board
Frequency
Motor
Sensor 2
Sensor 1
Sensor
Chattering noise
is ignored
FP-M
Response time
Pulse