Endress+Hauser Ecograph T RSG30, Operating Instructions Manual

Page: 39 / 86

Commissioning
39
Additional Info.
!
Note!
Only available if switched on in the basic
settings.
Additional information on channel identifier, e.g. the respective measurement point tag
number (example: tag numbers in power stations). In normal operation, the additional
information can be listed along with the 10-digit channel identifier at "Main Menu ->
Signal display -> Measurement point identifier". 13-character entry.
Plot Type The analog inputs are scanned in a 100ms cycle. Depending on the save cycle, the
selected data are determined from the scanned values and saved (e.g. with a save cycle
of 1 min., the average of 600 values (10x60) is calculated and saved).
"Instantaneous Value": the value pending for the save cycle is saved.
"Average": the average value during the save cycle is calculated and saved.
"Minimum Value": the minimum value is calculated and saved.
"Maximum Value": the maximum value is calculated and saved.
"Envelope Curve": both minimum and maximum values are saved (requires higher
memory capacity)
Engineering Unit Input of the engineering (physical) unit for the measuring point connected to this input
(e.g. %, bar, °C, m/h, etc.). 6–digit entry.
!
Note!
Note: cannot be changed for resistance thermometers and thermocouples!
Decimal Point Number of places after decimal point for the display. Picklist: 0 to 5 number of places
after the decimal point
Formula
Only for "Mathematics"
f = (y1*a) ? (y2*b) +c: linking two channels;
f = g(y1...y2) * b + c: calculates the average or sum total of two or more channels.
Mathematics channels are treated like "real" analog inputs, (set points etc.).
Function 'g'
Only for "Mathematics"
"Sum" or "Average" of channels 'y1' to 'y2'.
Picklist: Not Used,
Sum , Average
Signal 'y1'
Only for "Mathematics"
'y1' signal that should be linked to another signal.
Picklist: Analog Input x
!
Note!
Other mathematics channels can be used for the calculation if their channel number is
smaller than the number of the mathematics channel that is computed.
Factor 'a'
Only for "Mathematics"
Factor 'a' by which the value of the 'y1' signal is multiplied.
Factory setting: 1.0
Math Operator '?'
Only for "Mathematics"
Mathematical operator for combining the channels. To deactivate the second part of the
formula (y2*b), select "Not Used" for the operator.
Picklist: Not Used,
- (Subtraction) , + (Addition), * (Multiplication), / (Division)
Signal 'y2'
Only for "Mathematics"
Second signal, "y2", which is to be linked with the first one, "y1".
Picklist: Analog Input x
Factor 'b'
Only for "Mathematics"
Factor 'b' by which the 'y2' signal or the function g(y1...y2) is multiplied.
Factory setting: 1.0
Constant 'c'
Only for "Mathematics"
'c' constant is added to the result of linking the two signals y1 and y2. Factory setting:
0.0
Entry in the (technical or physical) unit of the mathematics channel.
Range Start Transmitters convert the physical measurement into a standard signal. Example: 0-14
pH from the sensor is converted to 4-20 mA. Enter the starting point of the
measurement range. A "0" for 0-14 pH.
!
Note!
Note: cannot be changed for resistance thermometers and thermocouples!
"Signal Settings"
menu items
Configurable parameters
(factory settings are highlighted in bold)