Omron FQM1-CM001 Manuale Utente

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).

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.

I/O memory

User program

 

 

 

 

PRV 

 

D 

A 

FQM1-MMA21 
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

Immediate 
refreshing

Sensor
(pressure, displacement, etc.)

Stores the data
when instruction 
is executed.

High speed input
(A/D conversion time: 
40 

µs)