-31-
9.2
Input Range
The Input Range function is set by Object 220x:02h. It indicates selected range of analog input signals. The
analog signals are converted to digital data in the ranges shown on
Table 9-2
.
Input range of analog voltage is selectable among -10 ~ 10[V], -5 ~ 5[V], -2.5 ~ 2.5[V] and 0 ~ 10[V]. Input range
of analog current is 0~20[mA]. If the input signal is out of range, it is converted to the minimum or maximum
data.
* Change in Input Range is updated after the reboot.
Value
Input Range
Input Mode
0
-10 ~ 10V
Voltage
1
-5 ~ 5V
2
-2.5 ~ 2.5V
3
0 ~ 10V
4
0 ~ 20mA
Current
Table 9-2. Input Range
Input Range: -10 ~ 10[V]
9.2.1
When the Input Range value is 0, the range of analog input is -10 ~ 10[V] in Voltage Input Mode. The analog
input signals are converted to digit data -4096 ~ 4095 (Full Scale). If the input signal is out of range, it is
converted to the minimum or maximum data.
Every 1[V] of the analog signal is converted to 409.6 digital data (After the conversion, the decimal places are
removed).
Table 9-3. Data Conversion for Input Range -10 ~ 10[V]
Figure 9-1. Data Conversion for Input Range -10 ~ 10[V]
Input Range
Converted Data
0 (-10 ~ 10[V])
-4096 ~ 4095 (-10 ~ 10[V])
