IDEC SmartAXIS Touch FT1A Series, User Manual

Page: 141 / 1232

SmartAXIS Touch User's Manual
3-45
4 Special Functions
3
Pr
oject
This chapter describes the Touch special functions, how to configure them, and examples of their use.
●
Function List
4 Special Functions
Function name Overview Setup location
Stop input
The ladder program or FBD program operation can be stopped with a
specified input.
Function area
settings
Reset input The values of the control devices can be cleared with a specified input.
Run/stop selection at
memory backup error
Whether to start or stop the ladder program or FBD program operation
when the Touch is powered up after the "keep" data in the RAM has
been lost can be specified.
Run/stop selection at power
up
Whether to start or stop the ladder program or FBD program operation
regardless of the M8000 status when the Touch is powered up can be
specified.
Keep and clear devices
Whether to clear or keep the device values, such as counter current
values, when the ladder program operation starts running can be
specified.
High-speed counter
The high-speed counters can be used to count input pulses from rotary
encoders or proximity switches regardless of the scan time.
Catch input
The catch input can be used to receive short pulses from sensors
regardless of the scan time.
Interrupt input
When a quick response to an external input is required, such as in
positioning control, the interrupt input can call a subroutine to execute
an interrupt program.
Frequency measurement
The pulse frequency of input signals to input terminals can be counted
regardless of the scan time.
Input filter
The input filter rejects short input pulses when the Touch is used with
input signals containing noises.
Analog input
Analog voltage inputs, such as inputs from pressure sensors, can be
read and stored in special data registers as digital values.
Timer interrupt
When executing the same program repeatedly regardless of the scan
time is required, the timer interrupt can call a subroutine to execute an
interrupt program at specified time interval.
Analog output Analog values of voltage and current can be output.
Analog cartridge
Analog signals can be received or analog values can be output with the
analog cartridge attached to the Touch (transistor output type).
Ladder Monitor Settings for running the Ladder Monitor on the LCD
Watchdog timer
settings The watchdog timer monitors the operation and the watchdog time
preset value can be changed.
Daylight savings time
The internal clock can automatically be adjusted according to the
configured daylight saving time period.
Remote I/O
The number of inputs and outputs can be expanded by connecting the
SmartAXIS Pro/Lite as remote I/O slave.
Clock function
The Touch can operate according to the current date and time and be
used in applications, such as lighting or air conditioning.
Instructions or FB
When the setting of control function is changed, save the project data. If project data is saved on
WindO/I-NV3, the setting of control function is also saved.