Yokogawa Removable Chassis DX1000N - Manual (Page 247)

9-3
IM 04L41B01-01E
Computation and Report Functions (/M1 and /PM1 Options)
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• Span_L, Span_U
Set the measurement range.
Selectable range of values: –9999999 to 99999999
Selectable decimal places: X.XXXX, XX.XXX, XXX.XX, XXXX.X
• Unit
Set the unit of the computed value (Up to 6 characters, A a # 1 ).
• Alarm
The available alarm types are high limit alarm, low limit alarm, delay high limit alarm,
and delay low limit alarm.
The range of alarm values is as follows:
Type Value
H, L, T, t Within –9999999 to 99999999 excluding the decimal point
For details on setting alarms, see section 3.7.
* If the Math On/Off or calculation expression is changed, the alarms for that channel are turned
Off.
• Alarm delay > Time
Set the alarm delay time using an integer in the range of 1 to 3600 s.
• Tag > Comment
Sets the tag comment. On a DX with a release number of 3 or later, you can enter up
to 32 characters. On a DX with a release number of 2 or earlier, you can enter up to
16 characters. The characters that can be entered are:
A a # 1 .
• Tag > No. (Release number 3 or later)
This setting only appears when you have enabled the use of tag numbers.
Sets the tag number. (Up to 16 characters:
A a # 1 )
• Constant
• Number of constant
Select the constant (K01 to K60) to set.
• Value
The selectable range is as follows:
–9.9999E+29 to –1.0000E–30, 0, 1.0000E–30 to 9.9999E+29
The number of significant digits of a constant is five. When specifying the constant
using exponential notation, set the mantissa less than or equal to 5 digits and the
exponent less than or equal to 2 digits.
• TLOG
• Timer type
You can set the timer type to Timer or Match T (match time timer).
• Timer No.
Select the timer number to use.
For details on setting the timer, see section 7.1.
For match time timer setting instructions, see section 7.1.
• Sum scale
Set the sum scale to /s to /h to match the unit of the measured value.
Example: If the unit of the measured value is “m 3 /min,” select /min.
Off: Sums as-is the measured data per scan interval.
• Reset
To reset the TLOG computed value at each interval, select On.
9.1 Setting the Expression, Measurement Range, Alarm, Tag, and Data Storage on Computation Channels