Omron K3HB-C User Manual page 81

Section 5 Functions and Operations
■ F5: Measuring Length
Input A
Input B
Hold
Measurement value
5-20
Measuring workpiece length
• Basic operation
Displays the number of input A pulses while input B is ON.
The measurement value can be obtained using the following
formula:
D = C
C: Number of pulses of input A while input B is ON
: Prescale value A
D: Measured length
C C
1 2
Measuring period Measuring period
T
R
Not valid
No measurement C
1
*TR: Recovery Time
The time required from the end of one measurement until completing
preparations for the next measurement. Allow at least 1 ms.
Referring to the following table, specify the prescale value
corresponding to the desired display unit
Calculated value
Measured length
Na: Number of input A pulses per rotation
da: Circumferential length (m) of Input A per rotation
A
Encoder
BCD
Operation Configuration (Application)
C C
3 4
Measuring period Measuring period
C
2
.
Display unit
mm
cm
m
To PLC
C
4
Prescale value
( )
1000 da/Na
100 da/Na
da/Na