Symmetron TILTOMETER User manual

TILTOMETER V1.0
USER’S MANUAL

Copyright ©2007, the Symmetron Company.
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: [phone], FAX: [phone]
e-mail: [email protected]
Internet: http://www.symmetron.gr/
Made in Greece.
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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.
N. Hadzidakis – T. Katsabakou Co.
54, Leontariou St. 15351 Pallini,
Greece
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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
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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
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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.
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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=[phone]”, 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
0,5
1
1,5
2
2,5
3
-100 -50 0 50 100
Elevation Angle(Degrees)
Output Voltage(Volts)
Figure 3
Half Range
0
0,5
1
1,5
2
2,5
3
0 100 200 300 400
Azimuth Angle(Degrees)
Output Voltage(Volts)
Figure 4
Full Range
0
1
2
3
4
5
6
-100 -50 0 50 100
Elevation Angle(Degrees)
Output Voltage(Volts)
Figure 5
Full Range
0
1
2
3
4
5
6
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.
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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’
.
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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
Y
-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
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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.
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5TECHNICAL SPECIFICATIONS
5.1 ELECTRICAL CHARACTERISTICS
Please refer to Figure 2 .
OUT AZIM: Output Azimuth.
•Range: 0-2.5 volts or 0-5 volts, representing 0 to +360 degrees.
•Resolution: 1,4 degrees.
•Accuracy: better than ±4 degrees.
•Output update rate: 2 Hz.
OUT ELEV: Output Elevation.
•Range: 0-2.5 volts or 0-5 volts, representing –90 to +90 degrees.
•Resolution: 0,7 degrees.
•Accuracy: better than ±2 degrees.
•Output Update Rate: 2 Hz.
Communication connection: 9600 baud, 8 bits, no parity.
PIN Standard (RS-232) Option (RS-422)
TXD Output Transmit output RDB (+) Input
RXD Input Receive input RDA (-) Input
RTS Output ελέγχου ροής (handshake) TDA (-) Output
CTS Input ελέγχου ροής (handshake) TDB (+) Output
S. GND Serial Ground Serial Ground
Step response (any value to final value): 8 seconds.
Power Supply: 6 to 15 VDC supply, 8 mA (typical).
5.2 MECHANICAL CHARACTERISTICS
•Connections of input and output: All user I/O connections are on internal 10-position screw
terminal. Cable passes through IP65 PG7 gland.
•Box: Cast aluminium IP65.
•Dimensions: 115 x 65 x 30 mm.
•Mounting: directly on wind masts with diameters between 70 and 150mm, using clamp. This is
possible if the 8 mm-high dome nuts (included) are used as shown in
Figure 8 (box’s smallest side
shown):
65mm
8 mm
AZIMUTH 0°
(NORTH)
Figure 8
5.3 ENVIRONMENTAL CHARACTERISTICS
•Operating Temperature: -25 to +75 °C.
•Protection: IP65.
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6CONNECTING TO A DATA LOGGER
6.1 CONNECTIONS
TILTOMETER GENERIC DATA
LOGGER
STYLITIS-41 STYLITIS-101
(1) BATTERY
Screw #10 BAT- - - - BAT −
Screw #9 BAT+12V - - - BAT +
Screw #1 AZIMUTH ANALOG CHANNEL ANY ANALOG IN ANY ANALOG IN -
Screw #2 ELEVATION ANALOG CHANNEL ANY ANALOG IN ANY ANALOG IN -
Screw #3 AN. GND ANALOG GROUND GROUND GROUND -
6.2 SETTINGS
These settings deliver recorded values from 0 to 360 degrees for azimuth and from -90 to 90
degrees for elevation:
Data loggers with a 0 to 5V input range:
AZIMUTH ELEVATION
SLOPE 72.0 36.0
OFFSET 0.0 -90.0
Data loggers with a 0 to 2.5V input range (2):
AZIMUTH ELEVATION
SLOPE 144.0 72.0
OFFSET 0.0 -90.0
NOTES:
(1) On Stylitis-101, connect the AN [-] inputs to the GND on the screw terminal. Set the input
range to 0~5V, Unipolar.
(2) For data loggers with input range equal to 0~2.5V, use the RS232 port to set the
Tiltometer’s output range to half. Issue the command: !RANGE=HALF (See 3.2).
(3)
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