7 Configuration
122
Reset signal
The device can monitor the connection to the Modbus master as a Modbus slave. If the connection is
down (timeout from the master), a digital signal is activated (slave timeout ...). This signal can be used
as a reset signal to set the input to a defined value.
Using the device (slave) to monitor the Modbus connection only makes sense if the external master
writes to the input. If the external master only has read access to the input, this function has no meaning.
Factor
Using a factor makes it possible, for example, to reduce the measured value before further processing
so that the displayed (and registered) value lies within the display range.
Since the display range ends at 99999, a measured value of 100000, for example, can be multiplied by
a factor of 0.001 so that a value of 100 is displayed. The unit must be changed accordingly (e.g.: 100000
kWh = 100 MWh).
The value that was modified by the factor can also be corrected by an offset (correction value).
7.10.1
Limit value monitoring
Limit value monitoring with one or two limit values (alarm 1, alarm 2) can be activated for each external
analog input. In out-of-limit cases, an alarm signal is activated. Depending on the configuration, an entry
is made in the event list or additionally in the alarm list. In the latter case, the alarm/event text is displayed
in the status bar (until another alarm occurs); the collective alarm is enabled, and the plotter trace may
be displayed in a different color.
This limit value monitoring function is independent of the general limit value monitoring values (Config-
uration > Limit value monitoring) and available in addition to them.
Decimal places
Number of pre-decimal and decimal places for the numerical display of the input
value
Even if the number of decimal places is fixed, the format is automatically changed
if needed in order to display all digits before the decimal point.
Auto
Automatic
XXXXXp
No decimal place
XXXXpX
One decimal place
XXXpXX
Two decimal places
XXpXXX
Three decimal places
XpXXXX
Four decimal places
Start of display
range
-99999 to
0
to +99999
Lower limit of display range
End of display
range
-99999 to
100
to +99999
Upper limit of display range
Reset signal
Digital selector
No selection
The reset signal (high active) sets the
analog input to a status of "no input sig-
nal".
Save using power
off
No
Yes
If "Yes", the current value is saved upon
switch-off (power off) and is available
again upon switch-on (power on).
Offset
-99999 to
0
to +99999
Correction value (correction of the dis-
play value by addition or subtraction)
Factor
-999999999 to
1
to +999999999
Factor for evaluating the measured value
Parameter
Selection/settings
Description
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Summary of Contents for 706521
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Page 24: ...3 Mounting 24 chapter 11 1 10 Case Page 272...
Page 36: ...4 Electrical connection 36...
Page 74: ...5 Operation 74...
Page 190: ...7 Configuration 190...
Page 278: ...11 Annex 278...
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