4 AUXILIARY AND APPLIED FUNCTIONS
4) Estimate calculation
Set the estimate calculation to "Valid/Invalid" at the word device data
setting.
Estimate calculation
Normal data
Valid
Ring counter
Invalid
a) Estimate calculation : Valid
Calculation for word device data in the operation cycle is estimated.
The latch data is the value estimated at the timing in which the mark
detection signal is input. The value is calculated as shown in the
figure below whether the word device data is normal data or a ring
counter. Set the ring counter value for the ring counter.
• Valid (Normal data)
Mark detection signal
• Valid (Ring counter)
Ring counter value
Mark detection signal
POINT
If "Valid (Normal data)" is selected for word device data updated as a ring counter,
the latch data may not be estimated correctly.
16-bit integer type
32-bit integer type
64-bit floating-point type K2.23E-308 to K1.79E+308
Latch data
Latch data
4 - 86
Ring counter value
—
K1 to K32767, H0001 to H7FFF
K1 to K2147483647,
H00000001 to H7FFFFFFF
—
Operation
cycle
Operation
cycle
Estimate line
Word device data
t
Estimate line
Word device data
t