Symmetron TILTOMETER Manuale utente

TILTOMETER V1.0

USER’S MANUAL

Fourth Edition in English, June 2007.

No part of this publication may be reproduced, stored in a retrieval system, or

transmitted, in any form by any means, without the prior written permission of

Symmetron Company.

Information furnished by Symmetron is believed to be accurate and reliable;

however, no responsibility is assumed for its use. No license is granted by implication

or otherwise.

Symmetron®is a registered trademark. Stylitis™and Tiltometer™are trademarks of

the Symmetron Company.

All other trademarks belong to their respective owners.

WARRANTY

The Symmetron Company warrants its products shall be free from defects on materials and

workmanship under normal use for the period of 1 year. Symmetron's obligation under this

warranty shall not arise until buyer returns the defective product, freight prepaid to

Symmetron's facility or another specified location.

The only responsibility of Symmetron under this warranty is, at its option, to replace or

repair, free of charge, any defective component of such products.

THE WARRANTY DOES NOT EXTEND TO AND SHALL NOT APPLY TO:

1. Products which have been repaired or altered by other than Symmetron's personnel, unless

Buyer has properly altered or repaired the products in accordance with procedures previously

approved in writing by Symmetron.

2. Products, which have been subject to misuse, neglect, accident, improper installation, or

direct lightning strikes.

THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE IN LIEU OF ALL OTHER

WARRANTIES EXPRESSED OR IMPLIED, ORAL OR WRITTEN, EITHER IN FACT OR BY

OPERATION OF LAW.

THE SYMMETRON COMPANY SHALL HAVE NO LIABILITY FOR INCIDENTAL OR

CONSEQUENTIAL DAMAGES OF ANY KIND ARISING OUT OF THE SALE, INSTALLATION, OR

USE OF ITS PRODUCTS.

RETURN OUTSIDE GREECE

Contact Symmetron for authorization and shipping instructions.

SYMMETRON ELECTRONIC APPLICATIONS

TEL: +30-210-603-4002, FAX: +30-210-603-4003

e-mail: [email protected]

Internet: http://www.symmetron.gr/

Made in Greece.

S-UME-TILT_1_0-004

MANUFACTURER’S DECLARATION OF CONFORMITY

I, the undersigned, hereby declare that the equipment specified conforms

to the below Directives and Standards.

Standards to which Conformity is Declared

EMC Emmisions: ΕΝ61326:1998

EMC Immunity: ΕΝ61326:1998

Protection: EN60529:1992

Description of Equipment

Angle sensor.

Model

Tiltometer

Batch of product covered

Serial numbers: from 0 to 2000

Date and Place

Pallini, Attica, Greece, December 1, 2006.

Authorized signatory on behalf of the manufacturer

N. Hadzidakis

Name: N. E. Hadzidakis

Title: Director

N. Hadzidakis – T. Katsabakou Co.

54, Leontariou St. 15351 Pallini,

Greece

S-UME-TILT_1_0-004 3

TABLE OF CONTENTS

1 INTRODUCTION ............................................................................................5

2 GENERAL DESCRIPTION ................................................................................5

3 COMMUNICATION WITH THE USER ...............................................................6

3.1 SERIAL PORT.........................................................................................6T

3.2 SETTINGS..............................................................................................7

3.3 QUERIES ...............................................................................................8

3.4 CONNECTION OF THE SERIAL PORT WITH GSM MODEM .........................9

4 PLACEMENT POSITIONS & CORRESPONDING OUTPUTS..................................9

5 TECHNICAL SPECIFICATIONS ...................................................................... 11

5.1 ELECTRICAL CHARACTERISTICS ...........................................................11

5.2 MECHANICAL CHARACTERISTICS.......................................................... 11

5.3 ENVIRONMENTAL CHARACTERISTICS ...................................................11

6 CONNECTING TO A DATA LOGGER...............................................................12

6.1 CONNECTIONS ....................................................................................12

6.2 SETTINGS............................................................................................12

S-UME-TILT_1_0-004

1INTRODUCTION

The Tiltometer is a product for measuring the angle (verticality) of masts. The angle

information will either be recorded on a data logger or will be monitored via the RS232 port,

or both.

The Tiltometer is designed to watch the condition of mast by measuring its angle. As such,

it allows you to:

•Communicate, via its serial port with a computer and obtain data as needed. You can

change settings as you wish.

•Connect the Tiltometer with a data logger and record the measurements, which are

provided as analog voltage outputs.

•Connect the serial port of the Tiltometer to a GSM Modem and have it send an SMS

message to a preset number, if tilt angle exceeds a preset angle. This way a possible

(and expensive) mast fall may be prevented.

The above operations are performed simultaneously with the sampling of measured data

and without affecting their integrity.

2GENERAL DESCRIPTION

According to the block diagram, shown in

Figure 1

, the Tiltometer has the following

characteristics:

•Two voltage outputs, one for elevation angle and one for azimuth, with output range

0~2.5 volts or 0~5 volts. They can be connected as inputs to a data logger, PLC, etc.

•An RS232 port for local or remote (via GSM Modem) communication.

•The outputs update with frequency 2Hz, i.e. every 500ms.

•Power Supply: 6 to 15 VDC.

•It is calibrated and re-calibrated via software.

Analytic description of terminals is given in

Figure 2

Figure 1:General diagram

MCU

POWER SUPPLY

START-UP

CIRCUIT

STORED

PROGRAM

(FIRMWARE

)

SERIAL I/O

Sensor RS232

Sensor DAC VOLTAGE

OUTPUT

S-UME-TILT_1_0-004 5

Figure 2: Description of the screw terminal

10 9 8 7 123456

1ÆOUT AZIM: AZIMUTH OUTPUT, for connection to data logger.

2ÆOUT ELEV: ELEVATION OUTPUT, for connection to data logger.

3ÆAN. GND: OUTPUT GROUND

4ÆStandard model (RS-232): RXD (Receive Data)

Option (RS-422): RDA (-)

5ÆStandard model (RS-232): TXD (Transmit Data)

Option (RS-422): RDB (+)

6ÆStandard model (RS-232): RTS (Request To Send)

Option (RS-422): TDA (-)

7ÆStandard model (RS-232): CTS (Clear To Send)

Option (RS-422): TDB (+)

8ÆS. GND: SERIAL GROUND

9ÆBAT+12V: input supply

10ÆBAT-: SUPPLY GROUND

3COMMUNICATION WITH THE USER

3.1 SERIAL PORT

The Tiltometer has an RS232 serial port. It allows local set-up with a PC or data transfer.

Pin assignment:

Pin 2 ÆReceive Data Line (RXD), the pin 4 of terminal (input)

Pin 3 ÆTransmit Data Line (TXD), the pin 5 of terminal (output)

Pin 5 ÆGround, the pins 3, 8, 10 of terminal

Pin 7 ÆRequest To Send (RTS), the pin 6 of terminal (output)

Pin 8 ÆClear To Send (CTS), the pin 7 of terminal (input)

Communication speed is fixed at 9600 baud with 8 data bits, 1 stop bit, no parity bit. For

communication between Tiltometer and PC connect a suitable cable and use the

HyperTerminal software.

S-UME-TILT_1_0-004

3.2 SETTINGS

i) "!ALARMANGLE=". Sets an alarm angle. The value is compared to the Elevation angle. If

the Elevation angle becomes smaller than the ALARMANGLE then an SMS message with tilt

information will be transmitted. The information may be exploited to prevent damage to an

installation. Allowed values are from 0 to 89. For example: “!ALARMANGLE=80” etc. The

value of 90 disables this feature. See also paragraph 3.4.

ii) "!ALARMPHONE=". This sets the phone number to send the SMS message. The phone

number may be in local or international form (with country prefix), and up to 20 digits long.

If both are registered and located in the same country enter the local form (for example,

“!ALARMPHONE=9876543210”), otherwise enter the international form (for example,

“!ALARMPHONE=+309876543210”, where the country’s international prefix is 30)

iii) "!RANGE=". This command sets the output voltage range at 0~2.5 Volts

(“!RANGE=HALF”) or 0~5 Volts (“!RANGE=FULL”). Output voltages represent angle; output 0

provides the elevation and output 1 provides the azimuth. The following figures show what

you get with these settings.

Half Range

0,5

1,5

2,5

-100 -50 0 50 100

Elevation Angle(Degrees)

Output Voltage(Volts)

Figure 3

Half Range

0,5

1,5

2,5

0 100 200 300 400

Azimuth Angle(Degrees)

Output Voltage(Volts)

Figure 4

Full Range

-100 -50 0 50 100

Elevation Angle(Degrees)

Output Voltage(Volts)

Figure 5

Full Range

0 100 200 300 400

Azimuth Angle(Degrees)

Output Voltage(Volts)

Figure 6

iv) "!HANDSHAKE=". This command sets the serial communication handshake options. The

Tiltometer uses hardware control (RTS and CTS signals) when “!HANDSHAKE=HARDWARE”.

The Tiltometer uses no handshake when you set “!HANDSHAKE=NONE”. You may want to

use hardware handshake when, for instance, you want to inform a connected modem that

the Tiltometer is about to transmit a message.

S-UME-TILT_1_0-004 7

3.3 QUERIES

i) "!ANGLE?". This command returns: ANGLE=E,A. Where Εis the value of the elevation

angle and is between -90 and 90 degrees and Αis the value of the azimuth angle which is

between 0 and 360 degrees.

ii) "!START". This command starts sending a stream of angle pairs in the form E, A. The

Tiltometer sends a new angle pair every 500 milliseconds.

If this command is executed no other commands will be interpreted with the exception of the

“!STOP” command.

iii) "!STOP". It is used to stop the execution of the !START command.

iv) "!ALARMANGLE?". This command returns: ALARMANGLE=y, where y is the angle which

has been defined by the "!ALARMANGLE=" command (see 3.2. Settings i)).

v) "!ALARMPHONE?". Returns ALARMPHONE=Ν, where Νis the number which we have

defined by the command "!ALARMPHONE="(3.2. Settings ii)).

vi) "!RANGE?". This command returns: RANGE =HALF or RANGE =FULL, according to its

definition by the command "!RANGE="(see 3.2. Settings iii)).

vii) "!HANDSHAKE?". This command returns the handshake options setting: HANDSHAKE

=NONE or HANDSHAKE =HARDWARE, depending on the command "!HANDSHAKE="(see 3.2.

Settings iv)).

viii) "!STATUS?". This command returns:

TILTOMETER Vx.x

FIRMWARE Vx.x

UPTIME=k

ANGLE ALARMS=l

LAST ANGLE ALARM =n

The first line shows the hardware version number, the second is the firmware version

number, the third is the time (k), in seconds, which has passed since the system is power up,

the fourth is the number of angle alarms (l) generated since power up and the fifth is a

number (n) representing the time the last angle alarm was generated in seconds, since

power up.

oAll settings and queries return OK or ERROR.

oAll settings and queries must be terminated by the characters CR (ASCII 13 decimal) and

LF (ASCII 10 decimal). If using HyperTerminal, make sure that you have checked the

option

‘Send Carriage Return characters along with Line Feeds’

oThe Tiltometer does not echo back the characters it is receiving. This means that in order

to see the commands you are typing in HyperTerminal, you must check the option

‘Local

echo of typed characters’

S-UME-TILT_1_0-004

3.4 CONNECTION OF THE SERIAL PORT WITH GSM MODEM

Optionally, the Tiltometer may be connected to a GSM Modem via the serial port. You can

use the serial connection through the modem for configuration or data acquisition.

Setting the ALARMANGLE parameter to a value less than 90, the alarm mechanism is

activated. When the Elevation angle becomes smaller than the ALARMANGLE, then an SMS

message to a preset number (ALARMPHONE) will be automatically send. Messages will be

sent every 24 hours, until the Elevation angle increases above the ALARMANGLE value. If the

alarm condition is removed before completion of the 24-hour interval, then an SMS will still

be sent. The first SMS will not be sent until the power-up time is 24 hours. The SMS contains

the following message:

"Elevation Angle is X degrees. Alarm Angle is Y degrees. Dangerous Tilt!!!

where X is the current elevation angle and Y is the preset ALARMANGLE. GSM modems from

Siemens and Wavecom have been tested and perform well with this function.

4PLACEMENT POSITIONS & CORRESPONDING OUTPUTS

A general idea of the space in which the tiltometer can move and typical values of the

elevation and azimuth angle are given in figure 7 (E: elevation, A: azimuth). Please notice

that when Elevation is at 90 degrees, then the Azimuth cannot be determined; this is because

the projection of the Z-axis on the horizontal plane becomes zero.

E=90

A= indeterminate

Positive Z-axis

Positive

-axis

Positive X-axis

E=0

A=90

E=0

A=0

E=0

A=180

E=0

A=270

E=-90

A=indeterminate

Figure 7

S-UME-TILT_1_0-004 9

The following table summarizes the outputs versus basic positions.

Absolute vertical position.

•Elevation=90

•Azimuth indeterminate

•Elevation=0

•Azimuth=90

•Elevation=0

•Azimuth=0 or 360

•Elevation=0

•Azimuth=270

•Elevation=0

•Azimuth=180

•Elevation=-90

•Azimuth indeterminate

•

LEGEND

The symbol • indicates the screw terminal’s position.

The hatch indicates the horizontal level.

The symbol indicates the bottom side of the Tiltometer.

S-UME-TILT_1_0-004

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