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11-2
Communication input data (C01 to C12)
Data that have been specified through the communication interface can be used. Enter
the data as C01 to C12 in the equations. For the procedure used to set the data, see the
“RD-MV100 Communication Interface User’s Manual” (IM RD-MV100-17E).
Range of numerical values (Maximum number of significant digits is 5) :
–9.9999E + 29 to –1.0000E – 30, 0, 1.0000E – 30 to 9.9999E + 29
Conditions of the remote control terminals (D01 to D08)
The conditions of the remote input signal can be assigned to “1” and “0,” and used in the
equations. Enter the data as D01 to D08 (the number following the letter D is the remote
terminal number) in the equations.
The correlation between the conditions of the remote input signal and the value “1” and
“0” are shown below.
Type of
the Remote
Input Signal
Status
“1” or “0”
Contact
close
1
open
0
Open collector
Voltage level is Lo at the remote terminal
1
Voltage level is Hi at the remote terminal
0
Unit Handling
The unit corresponding to the measured/computed data in the equation is not
compensated. In computations, measured and computed data are handled as values
without units. For example, if the measured data from channel 01 is 20 mV and the
measured data from channel 02 is 20 V, the computed result of 01 + 02 is 40.
Order of Precedence of the Operators
The order of precedence of the operators in the equation is as follows. The operators
are placed in order from the highest precedence.
Type
Operator
(higher precedence)
Functions
ABS( ), SQR( ), LOG( ), EXP( ), TLOG.MAX( ),
TLOG.MIN(), TLOG.P-P( ), TLOG.SUM( ), TLOG.AVE( )
Power
Logical negation
NOT
Multiplication and division
, /
Addition and subtraction
+, –
Greater than/less than
.GT., .LT., .GE., .LE.
Equal/not equal
.EQ., .NE.
Logical AND
AND
Logical OR, exclusive OR
OR, XOR
(lower precedence)
Displaying the Computed Result
The computed data of computation channels can be displayed in each operation screen.
Displaying the waveform and bar graph
The data are displayed in the range defined by the upper and lower limits of the span.
For the settings related to displaying the computed result, see sections below.
Set computation channels : See section 11.4.
Assign channels to groups : See section 7.6.
Display tags : See sections 7.1 and 7.2.
Set the channel display color : See section 7.8.
Use zone display : See section 7.9.
Set the number of scale divisions : See section 7.10.
11.1 Overview of the Computation Function
Содержание RD-MV100 Series
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