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User manual SCAIME:
NU-Soft-eNod4F-E-0716_235704-C.doc
function
Operating mode
transmitter
loss in weight feeder
none
●
●
gross measurement
●
●
net measurement
●
●
level on request
●
●
flow rate control output
●
instant flow rate
●
●
average flow rate
●
●
•
None :
analog outputs have no function.
•
Gross measurement :
analog outputs can be assigned to gross measurement copy. Maximal level value is
related to
Maximum Capacity
parameter and works in mono-quadrant functioning. Bi-quadrant option can
only be applied to gross measurement copy. When this option is activated, the lowest value of current and
voltage levels corresponds to -
MC
and the highest value to +
MC
.
•
Net measurement :
analog outputs can be assigned to net measurement copy. Maximal value is related to
Maximum Capacity
parameter and works in mono-quadrant functioning only. The highest value of current
and voltage levels corresponds to +
MC
in only one quadrant.
•
Level on request :
analog outputs are driven by master requests through the
external value to control
analog output
variable (in 0.01% of the full scale of current or voltage analog outputs).
•
Flow rate control output :
PID controller output data (activated or not) drives current or voltage outputs
generally coupled to the extraction device. Data is expressed in 0.01% of the high value of current or
voltage analog outputs. Maximal level output value corresponds to the maximal flowrate (see § flow rate
calibration).
•
Instant flow rate :
analog outputs can be assigned to instant flow rate copy. Maximal level output value
corresponds to the maximal flowrate (see § flow rate calibration).
•
Average flow rate :
analog outputs can be assigned to average flow rate copy. Maximal level output value
corresponds to the maximal flowrate (see § flow rate calibration).
When analog output is assigned to “Gross
measurement”, “Net measurement”, “Instant flow rate
”
or
“
Average flow
rate” its value jumps to a special error value when the internal alarm flag described in “Weighing diagnosis” § in the
MEASUREMENT AND STATUS § is activated. This allows to warn about defection of the measurement chain.
The error value on analog output is defined depending on voltage or current settings as described in following table:
Setting
Analog output error mode value
0 - 5V
5.5 V
0 - 10V
11 V
4 - 20mA
no output current
0 - 20mA*
no output current
0 - 24mA*
no output current
4 mA - 20 mA with alarm at 3.6 mA
3.6 mA, voltage output is deactivated (High-Z state)
* no error detection possible in this setting
13.1.3
Logical outputs
Each output can work individually in positive or negative logic
