Mora Systems...Optimal Engineering

TM

SCADABOX COVERAGE AREA

Company Profile

Mora Systems Limited was incorporated by a

family of engineers whose aim was to combine

their expertise to address engineering

requirements in the Caribbean. The company’s

founders have a combined experience of 40

years in areas such as software development,

SCADA systems, instrumentation and

communications.

Using advanced technology and custom

development our aim is to offer innovative

solutions to the many challenges that exist in the

developing Caribbean, decreasing installation

time and labor costs while improving efficiency

and reliability of technical operations.

USA:

Mora Systems Ltd

608 Sycamore Ridge,

Decatur GA, 30030, USA

Ph (404) 358-6108, Fax (404) 378-5966

Email: SCADA@morasystems.co.tt

http://www.morasystems.co.tt

Caribbean:

Mora Systems Ltd

#8 Deane St. St. Augustine

Trinidad & Tobago

Ph (868) 662-3605, Fax (868) 663-0252

Email: SCADA@morasystems.co.tt

http://www.morasystems.co.tt

General:

Dimensions (L x W x H)

Weight

Fixing

Operating Temperature

Protection Class

Power Supply:

DC (12V, 24V)

Input Current (A)

Internal Battery

Binary Inputs I1 – I8:

Input Voltage Range

Input Resistance

Input Voltage ON (1)

Input Voltage OFF (0)

Binary Outputs Q1 – Q2

Suggested mean currentfor single output

Single output current

Voltage drop @350mA

Analog Inputs A1, A2 (4-20mA)

Input Current

Input Resistance

Voltage Drop @ 20mA

124 x 63 x 30 mm

100g

DIN Rail 35mm

00-55 C

Ip40

9-30V

0.02 idle, 0.05 max

900mAh

0-30V

5.4kOhm

>9V

0-3V

350mA max

< 0.5V

50mA

4-20mA

100 Ohm typical

< 2V max

Product Brief...telemetry without bounds

Technical Specifications

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Consider again the example mentioned in the

previous section where a single temperature

parameter is to be measured:

Cost of single SCADABox unit and one year of

GPRS SIM rental: <TT$16,000

SCADABox Features/Advantages

General Description

The Traditional Method

SCADABox is a GPRS-based Remote Terminal Unit

(RTU) solution that allows for remote monitoring of

physical parameters as well as control of plant and

equipment.

Supervisory control and data acquisition (SCADA) at

it’s core involves moving data reliably, efficiently and

securely from one point to another. SCADABox

facilitates this using non proprietary protocols such

as TCP/IP, Modbus and GPRS. The system can be

installed in any location where a cellular network

exists with minimal configuration and setup

procedures.

Traditionally, if information is required from a remote

sensor, an RTU is installed at the site and the sensor

connected to it. The RTU is fitted with a radio which

communicates to the base station using a proprietary

protocol.

Using this method, usually line of site is required for

reliable communication between the RTU and the

base station, which in many cases is not possible.

The solution to this problem is the erection or sharing

of repeater towers. This incurs additional costs for

repeaters, remote power, erection of towers, rent,

licensing, labor etc, resulting in hundreds of

thousands of dollars in capital expenditure. The

network infrastructure is then owned by the client

which implies that costs associated with

maintenance, vandalism and interference become

the responsibility of the client. The system can

become very expensive and difficult to justify if there

are few parameters to be monitored or controlled.

Many companies have excluded SCADA systems

because of these costs.

Consider the example below where a temperature

parameter is needed as part of a weather monitoring

effort:

Cost of one RTU with radio: TT$20,000 – TT$40,000

Cost of tower, repeater equipment, transport, labor,

licensing and remote power: TT$350,000

This brings the total cost of measuring a single

parameter to be almost TT$400,000.

SCADABox connects directly to any analog or digital

sensor using its on-board input/output (I/O). If logic is

required for local control, it can be programmed

using typical ladder logic as one would program an

RTU.

All communications, power backup and monitoring

and intrusion detection functionality are built in. No

further configuration is needed. The unit goes online

within seconds once it is powered up.

A connection is automatically re-established should

the GPRS connection drop. The setup at the base

station involves simple configuration changes to the

client’s HMI of choice. These configuration changes

correspond to the I/O used in the SCADABox and all

mapping information is provided. Coverage has

been tested at various remote points in Trinidad and

can be seen on the coverage map shown on page 1.

The SCADABox Method

•GPRS communication

•Binary inputs

•Binary outputs

•Analog inputs (4-20mA)

•Expandable

•Backup power (low power consumption: 2-4hrs backup time): no separate backup needed

•DIN rail mounted

•Intrusion detection: monitors unit tampering

•Power monitoring: monitors supply at remote site

•Programmable (ladder logic/C): implement local control/logic

•Data logging: SQL, Access, flat files

•Reporting

•Trending

•Alarm generation: dependent on client requirements

•Automatic reconnection: a dropped connection is handled seamlessly

•Compatible with any HMI or sensor: preserve existing investments

•Low cost of ownership: one third the cost of a radio fitted RTU

•Guaranteed quality of service: no dependence on how congested the network is

•115.2 kb/s data rate: 5-10 times greater than typical RTU radios

•Little or no configuration needed

•Simple installation

•Low cost of maintenance: sim card rental fees

•Open protocols: compatible with existing systems.

•< 5 second response time: close to real time

•Highly secure: uses a virtually private network with a unique access node, fixed (and known) IP addresses, duplicate IP address detection, username, password, specific port number and specific address.

Example Applications

• Industrial process control and

monitoring:

• water/wastewater treatment• electricity distribution• oil and gas• transportation

• Control & monitoring of distributed groups

of points:

• pump stations• water booster stations• electricity substations • facility alarm systems

• Control and monitoring of distributed single

points:

• temperature• pressure• humidity• pH• oxygen• salinity• chlorine• hydrogen sulfide• noise• humidity• rainfall• wind speed• traffic signals• fluid levels• flow• valve position• water leakage• condition monitoring• bulk metering• medical patient monitoring

Temp sensor RTUsBase Station SCADA

Software

Base Station SCADASoftwareRTUs

Sensors,Actuators

Base StationSCADASoftware

Tempsensor

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