Yokogawa Value Series FX1000 - Manual (Page 106)

3-24
3.4 Setting Commands
IM 04L21B01-17EN
SK Sets a computation constant
(/M1, /PM1, and /PWR1 options)
Syntax SK p1,p2
p1 Computation constant number
p2 Constant (–9.9999E+29 to –1.0000E–30, 0,
1.0000E–30 to 9.9999E+29; five significant
digits)
Query SK[p1]?
Example Set the constant in computation constant number
K01 to 1.0000E–10.
SKK01,1.0000E-10
Description • You cannot use this command to configure
settings while recording (memory sampling) or
computation is in progress.
• Set p1 by referring to the table in section 3.3.
SI Sets the rolling average function
of a computation channel (/M1,
/PM1, and /PWR1 options)
Syntax SI p1,p2,p3,p4
p1 Computation channel number
p2 Moving average (ON, OFF)
p3 Sampling interval (1S, 2S, 3S, 4S, 5S, 6S,
10S, 12S, 15S, 20S, 30S, 1MIN, 2MIN,
3MIN, 4MIN, 5MIN, 6MIN, 10MIN, 12MIN,
15MIN, 20MIN, 30MIN, 1H)
p4 Number of samples (1 to 1500)
Query SI[p1]?
Example Enable the moving average of computation
channel 107, set the sampling interval to 1
minute, and set the number of samples to 20.
SI107,ON,1MIN,20
Description • If p2 is set to OFF, do not set p3 or p4.
• Set the sampling interval to a value that is
greater than or equal to the scan interval.
SJ Sets a TLOG timer (/M1, /PM1,
and /PWR1 options)
Syntax SJ p1,p2,p3,p4
p1 Computation channel number
p2 Timer number
p3 Conversion of the unit of time for TLOG.
SUM computation
OFF
Values are not converted.
/S Values are converted as though
the physical values are integrated
in units of seconds.
/MIN Values are converted as though
the physical values are integrated
in units of minutes.
/H Values are converted as though
the physical values are integrated
in units of hours.
p4 Reset (ON, OFF)
Query SJ[p1]?
Example Assign timer 1 to computation channel number
110. Do not convert the unit of time, and enable
the reset setting.
SJ110,1,OFF,ON
Description • Set p1 and p2 by referring to the table in
section 3.3.
• You cannot use this command to configure
settings while computation is in progress.
• About parameter p3
Because the FX integrates sampled data
over each scan interval, the physical value
measured over a given unit of time may be
different from the actual integrated value
(because the unit of time is different from the
scan interval). If this occurs, set p3 to the
same unit of time as that which is being used
for the physical value that you are measuring.
The FX calculates the integrated value using
one of the following conversion formulas
based on the parameter.
OFF
Σ(measured value)
/S Σ(measured value) × scan interval
/MIN Σ(measured value) × scan interval/60
/HOUR Σ(measured value) × scan
interval/3600
The scan interval unit is seconds.