Nexto Logger
Nexto Series
NL717
CE117100 Rev. B
SDI-12
Transmission Rate 1200 bps
Protocols SDI-12 Master Version 1.4
Max SDI-12 Sensors 10
Table 8: SDI-12 Interface Feature
Note:
For the correct operation of the SDI-12, the MainTask must be configured with a time lower than or equal to 20 ms.
4.7. Power Supply
Power Supply
Nominal Input Voltage 12 / 24 Vdc
Input Voltage 10 to 30 Vdc
Maximum Input Current (in-rush) 50A / 300 us
Maximum Input Current 1500 mA
Table 9: Power Supply Features
4.8. Digital Inputs
Digital Inputs
Input Type Optoisolated point type 1
An isolated group of 8 inputs
12 Vdc / 24 Vdc
Input Voltage 5 to 30 Vdc for logic level 1
0 to 2 Vdc for logic level 0
Input Impedance 4,12 kΩ
Maximum Input Current 7,28 mA @ 30 Vdc
Input State Indication Yes
Response Time 0,1 ms
Input Filter Disabled or 2ms to 255ms - by software
Table 10: Digital Inputs Features
Note:
Input Filter: The filter sampling is performed on MainTask (or Refresh function), then it’s recommended to use multiple
values of the task interval.
7