X90 mobile modules
X90 mobile system User's manual V 1.20 - Translation of the original manual
161
Continuous mode with enable (continuous mode)
This mode offers the following advantages:
•
When the parameters are configured correctly, nothing can be overlooked.
•
Using "enable", measurement in the module can be started after an event or events can be hidden.
•
The toggle bit toggles with every new value.
The following must be taken into consideration for the configuration:
•
In order to guarantee seamless measurement, the sample time (number of samples * sample rate) must
be longer than the X2X Link cycle (see register
"SamplesAnalogInput" on page 165
).
•
If a shorter sample time than the X2X Link cycle is configured, the last complete measurement is always
transferred.
Information:
Values are lost in this mode. The measured values cannot be transferred to the bus because multiple
values are calculated in each X2X Link cycle.
Trigger mode (single shot)
This mode offers the following advantages:
•
Only one measurement is taken at a time.
•
The trigger is edge-sensitive, so it can be retriggered in each X2X Link cycle.
•
The toggle bit toggles with every new value.
The following must be taken into consideration for the configuration:
•
A new trigger will be ignored during an ongoing measurement. The runtime on the bus can cause retrig-
gering before the toggle bit has changed.
•
If a shorter sample time than the X2X Link cycle time is configured, the last complete measurement is
always transferred.
•
In trigger mode, values are lost because the measured values are recorded acyclically to the X2X Link and
cannot be synchronized continually.
•
The trigger results in temporary synchronization with X2X Link.
5.4.1.5.5.3 AnalogInput
Name:
AnalogInput01 to AnalogInput04
Depending on the configuration, these registers contain
•
The actual input value of the associated input averaged over the last 8 samples
•
Or the characteristic value to be calculated using the configured number of samples
The value in the register is scaled according to the configuration of register
"AnalogInputScale" on page 164
.
If scaling the value takes it outside of the permissible range of values for INT, then it will be limited to the minimum
or maximum INT value. The overflow bit for the corresponding channel is not set in this case.
Information:
Automation Runtime automatically scales the analog input to mg or non-dimensional values (crest
factor) while taking SensitivitySensor and AnalogInputScale into account. If the AnalogInput value
without sensor scaling exceeds the value range of AnalogInputScale based on 100 mV/g, then the
corresponding AnalogInputOverflow bit is set.
Data type
Values
INT
-32768 to 32767
