Measuring ranges
Analog inputs
The measuring range can be switched during operation. The following table shows the electrical specifications depending on the selected measuring range.
Technical data | Measuring range | |||
|---|---|---|---|---|
-10…10 V | 0…10 V | 0…20 mA | 4…20 mA | |
Input type | Differential | |||
Input resistance | > 200 kΩ | > 200 kΩ | 85 Ω typ. + diode voltage | 85 Ω typ. + diode voltage |
Digital resolution | 16-bit | 15-bit | 15-bit | 15-bit |
Measuring error | < 0.3 % relative to full scale value | |||
Conversion time | approx. 100 µs | |||
Input filter limit frequency | 5 kHz | |||
Value of the least significant bit | approx. 305 µV | approx. 305 µV | approx. 610 µA | approx. 488 µA |
The analog inputs and outputs have a common analog ground potential. The analog ground potential is electrically isolated from all other ground potentials in the box.