Modbus LinkPlus Sutron Corporation sutron com Modbus Link

Modbus Link/Plus Sutron Corporation sutron. com Modbus. Link 6/4/2014 1

Advantages Sutron's SDI/MODBUS Wireless Sensor Networks } Sites where wiring is not practical (across a river, on rotating spindle etc). } Avoids expensive wiring, conduits, installation and maintenance. } Makes system easily scalable (add more sensors) } Less susceptible to vandalism. } Highly reliable, scalable, secure, robust, cost effective } Multiple sensor types } Complex data processing/analysis available w/9210 Master Sutron Corporation sutron. com Modbus. Link 6/4/2014 2

Key Technical Specifications Sutron Corporation } Operating Frequency: 2. 4 Ghz } Network type: Ad-hoc homogenous mesh } Range: 1 mile per hop } Latency: 1 s per hop } Power Consumption: 450 µA @ 3. 6 v (average) } Internal Battery: 19 Ah Lithium D-cell } External Power: 8 -16 v dc } Operating Temp: -40 C to +60 C } Enclosure: NEMA rated (4. 72”x 3. 15” x 2. 17”) } Protocol : Modbus RTU } Interfaces: RS-232, RS-485 } Status indicators: 3 LED (red/green/orange) sutron. com Modbus. Link 6/4/2014 3

Sensor Inputs } 3 independently switched 12 v supplies } Programmable warmup for each supply } 24 bit ADC § Built in 2. 5 v precision reference § 2 x Single ended analog inputs (0 -5 v) § 3 x Differential Inputs } 2 x SDI Sensors } 1 x Frequency input } 1 x Digital Input (Rain Gauge) Sutron Corporation sutron. com Modbus. Link 6/4/2014 4

Compatible Equipment } Modbus. Link-M § 9210 Data Logger via available RS 232 or RS 485 port § 8310 Data Logger via available RS 232 or RS 485 port (version TBD) § PLC or PC with serial port } Modbus. Link-S § Sutron Radar Level Sensor – RLR 0003 -1 § Constant Flow Bubbler – 56 -0133 -25, 56 -0134 § Stage Discharge Recorder (SDR) SDR-0001 -1 § Submersible Pressure Sensor INWPT 12 § Any Modbus Sensor with RS 232 or RS 485, up to 57600 baud. Sutron Corporation sutron. com Modbus. Link 6/4/2014 5

Installation Configurations Simple Installation with 1 Master & 1 Slave Sutron Corporation sutron. com Modbus. Link 6/4/2014 6

Sample Installation Configurations Sutron Corporation sutron. com Modbus. Link 6/4/2014 7

Installation Configurations Sutron Corporation sutron. com Modbus. Link 6/4/2014 8

Modbus. Link – Network Features } All nodes are capable of routing messages while remaining in low power mode } Multiple Modbus. Link networks can co-exist without interference. } Ad-Hoc mesh network (Automatic route formation) } Most efficient route to destination will be used } Routes periodically refreshed to improve reliability } Dynamic route tables, no RF/memory overhead for maintaining unnecessary routes. } Robust - New routes discovered if intermediate routes fail } Simple Network commands to maintain/query Network status(Network Scan, Blink Remote LEDs etc) } Simple command line interface to configure network / Modbus parameters Sutron Corporation sutron. com Modbus. Link 6/4/2014 9

Network basics 3 4 Logger G 2 6 5 Sutron Corporation sutron. com Modbus. Link 6/4/2014 10

Network basics } 3 types of Network Route messages § Route Request (RREQ) § Route Response (RREP) § Route Error (RERR) Sutron Corporation sutron. com Modbus. Link 6/4/2014 11

Network basics } Example Gateway -> 6 § G broadcast RREQ for addr 6 § 2, 3, 5 receive RREQ from G 3 § 2, 3, 5 update route table (2 ->G …) 4 § 2, 3, 5 rebroadcast RREQ § 4 receives RREQ from 2 & 3 § 4 Discards 2 nd RREQ as hop cnt not less G 2 § 4 rebroadcasts RREQ 6 5 Sutron Corporation sutron. com Modbus. Link 6/4/2014 12

Network basics § 6 receives RREQ from 2 } Forward Route complete (Unicast) § Update Table (6 ->2 ----->G) § RREP to 2 (dest G) § 2 receives RREP, updates Table (2 ->6) 3 4 § 2 fwds RREP to G Logger G 2 6 5 Sutron Corporation sutron. com Modbus. Link 6/4/2014 13

Network basics } Route Formation Complete § Route Table (G) => 6, 2, Sq#, Hop. Cnt § Route Table(2) => 6, 6, Sq#, Hop. Cnt 3 4 => G, G, Sq#, Hp. Cnt § Route Table (6) => G, 2, Sq#, Hop. Cnt M } Min RSSI threshold for reliability } Route’s refreshed every 48 hrs Sutron Corporation sutron. com 5 Modbus. Link 2 6 Message Delivery 6/4/2014 14

Competitive Analysis Compare Sutron with Banner Engineering Banner Specification Sutron (Modus. Link) Power 450 µA @3. 6 v (All nodes) 50 m. A @24 v (Gateway) 240 µA @3. 6 v (End Device) Network Type Self Healing ad-hoc mesh Network Hardware Homogenous ( all nodes identical) 2 types of devices 1)Gateway 2)Repeaters / End Devices Routing All nodes capable of Routing Range 1 mile (per hop) Freq 2. 4 GHz Network Configuration Automatic configuration Mounting NEMA rated enclosure for external mounting Protection Gas tube protected RS-485 port Sutron Corporation sutron. com (Surecross DX 80 G 9 M 2 S-P /DX 80 N 2 X 1 S 1 S) Only repeaters can route messages 2 Miles (per hop) 2. 4 Ghz Modbus. Link Each Node/Repeater address set using rotary dial. DIP switches to configure node as repeater or End-Device Secondary Enclosure needed None 6/4/2014 15

Modbus. Link. Plus } 3 independently programmable switched 12 v power supplies for sensors. } 2 X Single ended analog } 2. 5 v reference voltage for bridge sensors } 3 x Differential inputs } 1 SDI-12 Sensor } 2 x Digital inputs (frequency, counter) Sutron Corporation sutron. com Modbus. Link 6/4/2014 16

Ordering Part # Description MBLINKPLUS-1 Wireless network node with I/O (transceiver with built-in SDI-12, Analog & Digital Inputs). No Enclosure MBLINKPLUS-1 E 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(3 d. Bi antenna, 20’ low loss cable, mounting kit) Sutron Corporation Mod. Bus. Link Plus sutron. com 17

Future Support • Wireless Radar • Wireless Tipping bucket Sutron Corporation sutron. com Modbus. Link 6/4/2014 18

St. Marys Dam, MD Sutron Corporation sutron. com Modbus. Link 6/4/2014 19

System Configuration } 1 x Modbus. Link – Master } Sutron 9210 Datalogger } 8 x Modbus. Link - Slaves } 8 x INW Pressure sensors (Water Level + temperature) Sutron Corporation sutron. com Modbus. Link 6/4/2014 20