1Sutron Corporation ModBusLink Plus sutron.com

ModBusLink Plus

2Sutron Corporation ModBusLink Plus sutron.com

Overview

ModbusLinkPlus is an ultra-low power wireless node, fully compatible with Sutron’s ModbusLink wireless sensor network (WSN) family. The ModbusLinkPlus measures up to two single ended analog sensors, three differential analog sensors, one SDI-12 sensor & two digital inputs. The ModbusLink family is Sutron’s proprietary extremely low power, self-healing ad-hoc mesh network, optimized to provide years of service while running off the internal battery.

3Sutron Corporation ModBusLink Plus sutron.com

Specifications NETWORK

Frequency/Range 2.4Ghz /1 mile LOS

Network Type Ad-hoc homogenous mesh

Maximum hops 4

RF Power 20 dBm (max)

Antenna 3.2 dBi (max gain)

PHYSICAL

Enclosure Non-NEMA (NEMA Enclosure Available)

5.3” x 3.8” x 1.3”

13.5cm x 9.7cm x 3.4cm

Weight 1 lb. (.46kg)

Operating Temperature -40°C to +60°C

POWER

Power (Internal) 3.4v-12V DC Battery

Power (External) 8-16V

Average Current 550μA @ 3.6v average (~3mA for Gateway using RS485)

MODBUS

Modbus protocol RTU mode

Communication ports RS232 or RS485

Wake Input Wake input for Modbus port

Baud rates 9600

Parity None

4Sutron Corporation ModBusLink Plus sutron.com

Specifications - Continued

MEASUREMENTS

Switched 12v Supply (3) 3 independently programmable switched 12v power supplies for sensors.

Analog to digital resolution 24-bit

Reference Voltage 2 - Precision 2.5V reference

Single ended analog (3) 0 - 4 V (with respect to ground)

Single ended accuracy .02% (typ)

Differential inputs (3) ±2.5 V: common mode\voltage range .1 to 4.9V

±312 mV: common mode\voltage range .3 to 3.9V

±39 mV: common mode\voltage range .3 to 3.9V

SDI-12 (1) 1 SDI-12 sensor (‘M’ Commands only)

Digital Inputs (2) Counter Inputs, Frequency Inputs

Max input frequency 1KHz max

Tipping Bucket Switched Contact Type

Pulse Width between 30ms & 120ms

Programmable debouncing

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Ordering

Part # Description

MBLINKPLUS-1 Wireless network node with I/O (transceiver with built-in SDI-12, Analog & Digital Inputs). No

Enclosure

MBLINKPLUS-1E Wireless network node with I/O (transceiver with built-in SDI-12, Analog & Digital Inputs) With NEMA

Enclosure & internal battery

6661-1325-1 External antenna Kit(3dBi antenna, 20’ low loss cable, mounting kit)