You can find a more detailed description of the following columns and some operating hints in the manual of ibaPDA, in chapter "Notes on working in the signal tables".
Name
Enter a cleartext name for each signal in the Name column. Up to two lines of comment may be entered for each signal in the column Name.
Open the comment dialog by clicking on the button in 
the Name field of the signal.
Unit
Assignment of an engineering unit (such as Ampere, Volt, etc.) for the signal.
Gain and Offset
The values for gain and offset describe a linear characteristic curve for scaling. If incoming values are given in physical units, gain and offset can be ignored, i.e. set gain = 1 and offset = 0.
Gain and offset can be entered directly in the corresponding fields or by means of the two-point-scaling dialog with two pairs of applicable values.
You can open the two-point-scaling dialog with a click on the little tool button in
the fields gain or offset. (Cursor must be on the fields to see the button 
.
Address
In the Address column, the user can specify the byte offset of every single analog value in the Reflective Memory. The offset should be entered as decimal or hexadecimal values. In order to get some default values you may use the automatic fill function (see ibaPDA manual).
-
Analog signals (Reflective Memory module) in FLOAT-format 4 Byte-steps
-
Analog signals (Reflective Memory module) in INT16-format: 2 Byte steps
-
Analog signals (Reflective Memory module) in BYTE-format: 1 Byte steps
Note |
|
|---|---|
 |
It is recommended to configure the data to be transmitted in consecutive memory ranges, i.e. the signals should have consecutive addresses. Otherwise a significant loss of performance might occur. |
Data type
In the fields of this column, you can select the relevant data type used for each signal. Click in the corresponding field and select the data type from the drop-down list. The address space depends on the data type. Therefore, an adjustment of address entries might be necessary after changing the data types.
Available data types:
|
Data type |
Description |
Values Range |
|---|---|---|
|
BYTE |
8 bit without positive or negative sign |
0 … 255 |
|
INT |
16 bit with positive or negative sign |
-32768 … 32767 |
|
WORD |
16 bit without positive or negative sign |
0 … 65535 |
|
DINT |
32 bit with positive or negative sign |
-2147483648 … 2147483647 |
|
DWORD |
32 bit without positive or negative sign |
0 … 4294967295 |
|
FLOAT |
IEEE754; single precision; 32 bit floating point |
±3,402823 E+38 ...±1,175495 E-38 |
|
DOUBLE |
IEEE754; double precision; 64 bit floating point |
2.225E-308 … 1.798E+308 |
|
FP_REAL |
Fixed point real; Q15.16; 15 integer bits and 16 fractional bits; |
-32768 … 32767.9999 |
Activating channels
You can enable and disable every channel for acquisition with a mouse click.
Actual value
The fields in this column show the actual value of the signals. Even if the acquisition is not running yet the actual value may be displayed if the hardware is already connected and working (diagnostic feature).