Omron FQM1-CM001 用户手册
216
Analog Input Functions
Section 7-9
The PRV(881) instruction can also be used to read the latest analog input
value through immediate refreshing. Analog signals can be input from pres-
sure sensors, position meters, or sensors that require high-speed input pro-
cessing such as a displacement sensors/end-measuring sensors.
Consequently, this function allows simple, low-cost pressure control, tension
control, or other control applications requiring high-speed mechanical mea-
surement (distortion/thickness/length).
value through immediate refreshing. Analog signals can be input from pres-
sure sensors, position meters, or sensors that require high-speed input pro-
cessing such as a displacement sensors/end-measuring sensors.
Consequently, this function allows simple, low-cost pressure control, tension
control, or other control applications requiring high-speed mechanical mea-
surement (distortion/thickness/length).
Note
The analog input responsiveness has been set relatively high to increase the
processing speed. The high responsiveness may result in input signal distor-
tion by external noise or interference. Take steps to suppress noise if the
Motion Control Module is being used in an environment with a lot of noise.
When the Motion Control Module’s analog input value is being used, addi-
tional noise countermeasures can be added to the program such as using
END refreshing and filtering the input values with AVG instructions.
processing speed. The high responsiveness may result in input signal distor-
tion by external noise or interference. Take steps to suppress noise if the
Motion Control Module is being used in an environment with a lot of noise.
When the Motion Control Module’s analog input value is being used, addi-
tional noise countermeasures can be added to the program such as using
END refreshing and filtering the input values with AVG instructions.
I/O memory
User program
PRV
D
A
FQM1-MMA21
Motion Control Module
Motion Control Module
Selected signal range:
−10 to +10 V, 0 to 10 V,
0 to 5 V, 1 to 5 V, or
4 to 20 mA
0 to 5 V, 1 to 5 V, or
4 to 20 mA
Immediate
refreshing
refreshing
Sensor
(pressure, displacement, etc.)
(pressure, displacement, etc.)
Stores the data
when instruction
is executed.
when instruction
is executed.
High speed input
(A/D conversion time:
40
(A/D conversion time:
40
µs)