Table 30: Number Formats - WAGO 750-563/040-000 Manual

WAGO-I/O-SYSTEM 750 XTR
750-563/040-000 2AO 0/4-20mA/ 6-18V DC/ 16Bit /XTR

Table 30: Number Formats

View
0 ... 65535
twos complement
Leading
sign/amount
Setting of the upper and lower limiting value depending on the numeric
format:
In the +/− numeric ranges, the limiting values must be re-calculated to a positive
equivalent in the range from 0 ... 65535 (see table).
Example 1: Twos complement
Lower limit: −10 → Underrange limiting value: 32758
Upper limit: +10 → Overrange limiting value: 32778
Example 2: Leading sign/amount
Lower limit: −10 → Underrange limiting value: 32758
Upper limit: +10 → Overrange limiting value: 32778
Setting the upper and lower limiting value depending on a scaling:
Example 3: Scaling
−10000 should correspond to −10 V, +10000 could correspond to +10 V.
The scaling factor is: 32767 / 10000 = 3.2767.
3.2767 * 256 (increment with scaling) = 839.
839 is the gain factor (gain).
The offset remains 0.
If limiting values should now be determined, they must be multiplied by 3.2767
and then recalculated as in the first example to a numeric equivalent in the range
from 0 ... 65535.
Number Formats
0 mA
4 mA
6 V
0x0000 0x7FFF

0
0x8000 0xFFFF

−32768
0xFFFF 0x8001

−32767
Process Image
0x8000

32767 32768
0x0001

−1 0
0x0001

−1
37
20 mA
20 mA
18 V
0xFFFF
65535
0x7FFF
32767
0x7FFF
32767
Manual
Version 1.3.0