Configuration and operation
akYtec GmbH · Vahrenwalder Str. 269 A · 30179 Hannover · Germany · Tel.: +49 (0) 511 16 59 672-0 · www.akytec.de
15
Parameter
Description
Range
Default
value Access
Reference junction 1
Temperature of reference junction sen-
sor 1
-
-
R
Reference junction 2
Temperature of reference junction sen-
sor 2
-
-
R
Reference junction 3
Temperature of reference junction sen-
sor 3
-
-
R
Single
Input signal
Input signal selection (Sect. 4.8.1)
Off
– input excluded from sampling
List
Switch
contact
RW
Curve offset
Offset correction of sensor characteristic
curve (Sect. 4.8.4)
-10000…10000
0
RW
Curve slope
Slope correction of sensor characteristic
curve (Sect. 4.8.4)
-1…10
RW
Upper measuring limit
Maximum level of the input signal (Sect.
4.8.2)
-10000…10000
1
RW
Lower measuring limit
Minimum level of the input signal (Sect.
4.8.2)
-10000…10000
0
RW
Sampling time
Input sampling interval (Sect. 4.8.1)
600…10000 ms
3000
RW
Filter bandwidth
Input filter bandwidth in units of meas-
urement (Sect. 4.8.3)
0…100
10
RW
Decimal point offset
AIn INT
=
AIn REAL
* 10
DP
(Sect.
4.8.5)
0…7
0
RW
Filter time constant
Filter time constant (Sect. 4.8.3)
0 – filter disabled
0…65535 s
3
RW
AIn REAL
Measured value of input AIn as REAL32
(Sect. 4.8.5)
REAL32
-
R
AIn timestamp
Timestamp of input AIn as INT16 (Sect.
4.8.5)
0…65535 s/100
-
R
AIn INT
Measured value of input AIn as INT16
(Sect. 4.8.5)
-32768…32767
-
R
4.8.1 Input sampling
As long as the
Input signal
parameter is set to
Off
, the input is excluded from the sampling list. If one of the
signals is selected, the input will be included in the sampling list.
The parameter
Sampling time
can be set for each input separately in the range 0.6...10 seconds. If the in-
put cannot be sampled with the specified interval (that is, if the parameter is set to 0.6 seconds for each of 8
inputs, the total sampling interval will be ca. 4.8 s), the sampling interval will be increased to the shortest
possible one.
If the option
Maximum sampling rate
is activated (
On
), the sampling time is automatically adjusted to the
minimum possible for the selected input signal and the parameter
Sampling time
is ignored.
4.8.2 Signal scaling
If a linear input signal is selected, it can be scaled using the parameters
Lower measuring limit
and
Upper
measuring limit
according to the limits of the connected sensor. Thus, it can be converted to the units of
measurement.
Example 1:
When using a sensor with an output signal of 4-20 mA, which controls the pressure in the range of 0...25
atm., set the
Lower measuring limit
to 00.00, and in the
Upper measuring limit
to 25.00. Then, the pro-
cessing and display of readings will be carried out in atmospheres.
