Beskrivning
Introduction
ADS-260 is a battery powered Sigfox end node for low voltage, low power sensors. The unit is available for the 868 to 869 MHz and 902 to 928 MHz bands. It incorporates one input, configurable as analog, or pulse counter input and multiple excitation options for powering measuring transducers. Dedicated digital interfaces support the SDI-12 and MODBUS communication protocols. A D-size Lithium Thionyl battery can provide autonomous operation for over 10 years.
SDI-12 Serial Bus
SDI-12 is an asynchronous, ASCII, serial communications protocol that was developed for intelligent sensory instruments that typically monitor environmental data. The communication is achieved by digital communications. The addressing system allows data recorder to communicate with several microprocessor-based sensors over a single line. ADS-260 is compliant to the SDI-12 Standard Version 1.2 and supports extended commands for sensor configuration, in terminal mode. ADS-260 can collect data from several SDI-12 sensors for a total amount of 8 measurement channels.
RS-485, MODBUS
ADS-260 supports acquisition from sensors with RS-485 interface, using the popular MODBUS protocol (RTU & ASCII). Up to 8 measurement channels from several sensors are supported.
Transducer excitation
The unit provides multiple excitation options for measuring transducers.
Applications
- Agricultural Monitoring
- Tank level monitoring
- Water/wastewater
- Oil & Gas
- Environmental Monitoring
- Weather Monitoring
| Code | Description |
|---|---|
| ADS-260-82 | SIGFOX End node, 865-870 MHz Band (ETSI) |
| ADS-260-92 | SIGFOX End node, 902-928 MHz Band (FCC) |
Specifications
| Power supply | |
|---|---|
| Supply voltage | Internal: 3.6V, 13Ah Lithium Thionyl battery (Saft LSH-20 recommended) External: 5 VDC, regulated |
| Consumption | |
| Stand by | 18μA max.at 3.6V |
| Communication | 865-870 MHz Band: Receive: average 31mA, Transmit: average 59mA, 902-928 MHz Band: Receive: average 31mA, Transmit: average 292mA. |
| Measurement | Up to 1A at 3.6V (according to sensor supply requirements) |
| Processing unit | |
| System controller | Ultra low power ARM 7 MCU |
| Configuration memory | 16 KByte EEPROM |
| Configurable Input (IN1) | |
| Digital input | 1, dry contact, 0-30VDC |
| Pulse counter | 1, 2KHz. |
| Analog input | 1, Range: 0-1V, 12 bit resolution. |
| Serial Bus features & options | |
| SDI-12 | 8 channels, Support of extended commands in Terminal mode |
| RS-485, MODBUS | 8 channels, MODBUS RTU & ASCII protocol |
| RS-485 | Sensors with RS-485 interface and proprietary protocol (OEM versions only) |
| Sensor excitation | |
| Output 1 | 12VDC/250mA |
| Output 2 | 5VDC/200mA |
| Communication | |
| 865-870 MHz Band (ETSI) | Input/output impedance 50Ω, Uplink data rate (TX) 100 bps, Sensitivity -124 dBm, Max output power +14 dBm |
| 902-928 MHz Band (FCC) | Input/output impedance 50Ω, Uplink data rate (TX) 600 bps, Sensitivity -124 dBm, Max output power +24 dBm |
| Antenna connector | SMA Jack |
| Serial interface | USB, up to 115 kBit/s |
| Other | |
| Temperature | -40°…65°C, operating |
| Indications | LED, Operation status |
| Dimensions | 124 x 79.5 x 70 mm (with cable gland) |
| Protection | IP66 |
| Weight | 0.3 kg (without battery) |
