Garnet SeeLevel Access T-DP0301-C Manuale utente
garnetinstruments.com
1-800-617-7384
CANADA
Garnet Instruments
286 Kaska Road
Sherwood Park, AB T8A 4G7
USA
Garnet US Inc.
5360 Old Granbury Road
Granbury, TX 76049
IMPORTANT OPERATOR INFORMATION
DATE INSTALLED:_______________________________________________________________________________
UNIT NUMBER:_________________________________________________________________________________
COMPARTMENT: _______________________________________________________________________________
DISPLAY CALIBRATION UNITS (e.g. inches, gallons): ___________________________________________
MINIMUM TANK READOUT: ___________________________________________________________________
MAXIMUM TANK READOUT: ___________________________________________________________________
FULL SCALE ANALOG CALIBRATION VALUE: ___________________________________________________
SERIAL NUMBER : ______________________________________________________________________________
NOTES: _________________________________________________________________________________________
_________________________________________________________________________________________________
_________________________________________________________________________________________________
_________________________________________________________________________________________________
MODEL T-DP0301-C
RS-232 Version
Data Portal & Remote Display
with 1-5 V Output and Serial Interface
Page 2 T-DP0301-C Manual
Data Portal & Remote Display
MODEL T-DP0301-C
RS-232 Version
Table of Contents
CHAPTER 1 - INTRODUCTION....................................................................................3
CHAPTER 2 - FEATURES.................................................................................................4
CHAPTER 3 - WIRING DIAGRAMS.............................................................................5
CHAPTER 4 - DISPLAY PROGRAMMING .................................................................7
CHAPTER 5 - SERIAL INTERFACE................................................................................9
CHAPTER 6 - TROUBLESHOOTING GUIDE ........................................................... 14
CHAPTER 7 - SPECIFICATIONS.................................................................................. 15
CHAPTER 8 - SERVICE & WARRANTY INFORMATION .................................... 16
with 1-5 V Output and Serial Interface
T-DP0301-C_v51 - 01-Aug-2021
Page 3
T-DP0301-C Manual
CHAPTER 1 - INTRODUCTION
C
ongratulations on purchasing the Garnet Instruments
SEELEVELAccess
™
Data Portal. The SEELEVELAccess
™
compliments
the SEELEVELAnnihilator
™
806-B, 806-Bi, or SEELEVEL Special
™
808-P2 and SeeLeveL ProSeries II 810-PS2 gauges by providing an
additional volume readout in the cab of your truck.
In addition to providing readout of the tank level, the SEELEVELAccess
™
provides a 1- 5 V analog output proportional to the uid volume displayed.
This analog output can be used to communicate the tank level to other
pieces of equipment such as eet management systems or Electronic
Logging Devices (ELD).
The full scale value of the analog output can be set using the buttons on
the back of the display, no additional equipment is required for calibration.
The SEELEVELAccess
™
also contains a serial RS-232 interface which
allows eet management or ELD systems to gather uid volume data from
the gauge. The interface is full duplex and contains security features to
prevent unauthorized access.
The SEELEVELAccess
™
display has been designed to withstand the
vibration and shock encountered in mobile applications. While the 808-P2
and 810-PS2 operate on internal batteries, (12 volt truck power is used to
operate the back light and external alarms), the SEELEVELAccess display
operates on 12V truck power.
Analog Output
1-5 V
Digital Input/Output
RS-232 serial interface
Remote Display & Data Portal
with 1-5 V Output and RS-232 Serial Interface
+12 V
Signal from
808-P2/810-PS2 or
806-B/806-Bi
Page 4 T-DP0301-C Manual
CHAPTER 2 - FEATURES
T
he SEELEVELAccess
™
has been uniquely designed for specic
applications and with specic features:
Standard
SEELEVEL Access
Features
1. The signal between the
806-B, 806-Bi,
808-P2 or 810-PS2 display and
the
SEELEVELAccess
™ is digitally encoded so the signal line can be
connected using a standard 7 pin trailer plug.
2. The display operates on 12 volt truck power, and draws less than
150 mA.
3. All-digital design (except the 1-5 V output) eliminates reading drift
or degradation, ensuring long-term accuracy under all operating
conditions.
4. Operation from -40 °C to +60 °C (-40 °F to +140 °F) ambient
temperature.
5. Easy installation and servicing with a one-year limited warranty.
Additional
SEELEVELAccess
T-DP0301-C Features
6. An analog 1-5 V output, with 1 V corresponding as zero displayed
volume, and 5 V corresponding to the full scale displayed volume
programmed into the remote display.
7. An RS-232 serial interface available to connect to a a variety of ELD or
eet management systems.
8. The
SEELEVELAccess
™ provides an easy-to-read LED display inside a
compact, edge-view enclosure, optimized for top-of-dash or overhead
console mounting. The display is housed in an aluminum enclosure
2.7” wide x 1.1” high x 3.4” deep (68 mm wide x 29 mm high x 87 mm.
deep).
9. A dimmer button switch enables the operator to control brightness.
10. Simple 6 wire electrical installation - 12V power (red), ground (black),
gauge signal (yellow), analog output (white/blue), serial receive
(purple) and serial transmit (grey).
Page 5
T-DP0301-C Manual
CHAPTER 3 - WIRING DIAGRAMS
T
HE SEELEVELAccess
™
has been designed for easy installation with your
806-B, 806-Bi, 808-P2 or 810-PS2 series SEELEVEL
™
gauge. Installation
instructions are available online at
www.garnetinstruments.com
.
The SEELEVELAccess
™
Remote Display is easy to install:
PURPLE RS-232 RECEIVE
GREY RS-232 TRANSMIT
SeeLeveL
Access
1-5 V ANALOG
SIGNAL OUTPUT
PURPLE RS-232 RECEIVE
GREY RS-232 TRANSMIT
SeeLeveL
Access
1-5 V ANALOG
SIGNAL OUTPUT
808-P2 Wiring Diagram
810-PS2 Wiring Diagram
Page 6 T-DP0301-C Manual
PURPLE RS-232 RECEIVE
GREY RS-232 TRANSMIT
806B GAUGE
SeeLeveL
Access
1-5 V ANALOG
SIGNAL OUTPUT
PURPLE RS-232 RECEIVE
GREY RS-232 TRANSMIT
806Bi GAUGE
SeeLeveL
Access
1-5 V ANALOG
SIGNAL OUTPUT
806-B Wiring Diagram
806-Bi Wiring Diagram
Page 7
T-DP0301-C Manual
CHAPTER 4 - DISPLAY PROGRAMMING
The
SEELEVELAccess
™ display shows the tank level by repeating the
information shown on the
806-B, 806-Bi,
808-P2 or 810-PS2 gauge. The
1-5 V analog output is calculated from the display level with a 1 V output
corresponding to a display level of zero, and a 5 V output corresponding
to the full scale level programmed into the
SEELEVELAccess
™ display.
For example, if the full scale is programmed to be 500.0, then a display
value of 400.0 will result in an analog output of 4.20 V. The display will
recognize the decimal location and adjust the output accordingly, so in
this example a display value of 400 will also result in an analog output of
4.20 V.
To set the full scale level:
1. Determine the maximum volume that can be displayed and pick a full
scale amount that is equal to or greater than this volume.
2. Press both the NEXT MENU and UP/ENTER buttons on the back
panel, the display will show ACAL. Release both buttons.
3. The display will show the existing calibration with the left digit bright.
Press the UP/ENTER button to change the bright digit. Press the
NEXT MENU button to go to the next digit.
4. Set all 4 digits, then press NEXT MENU again to set the decimal point,
it will be bright to indicate that it is selected. Press the UP/ENTER
button to select either x.xxx, xx.xx, xxx.x or no decimal. For best
accuracy of the analog output, try to use all 4 digits such as 500.0
instead of just 500.
5. After the decimal as been set, press NEXT MENU again, the display
will show Stor. Press UP/ENTER to store the calibration and exit the
setting menu. The display will continue to show Stor for a moment
and then will show donE for a second. Then normal operation resumes.
6. If you do not want to store the calibration, press NEXT MENU again
and the display will show Abrt. Press UP/ENTER to abort which exits
the calibration menu without saving.
Page 8 T-DP0301-C Manual
7. If you press NEXT MENU again from the Abrt display, the
menu will return to the beginning with the left digit selected
by being bright.
8. If the full scale calibration is below 103, the display will be
unable to calculate a valid calibration, and will show cErr
(calibration error) after a few seconds. The existing calibration
will be retained, and the display will return to normal operation.
To view the existing calibration:
1. Press either the NEXT MENU or UP/ENTER button (but not
both) on the back panel, the display will show the existing
full scale analog calibration while the button is held down.
Release the button to return to normal operation.
To test the analog output:
1. While either the NEXT MENU or UP/ENTER button on the
back panel is pressed, the display will show the full scale
calibration and the analog output will go to full scale (5 V).
This can be used to test or calibrate the equipment connected
to the analog output.
2. While the display is in the calibration mode (entered by
pressing both the NEXT MENU and UP/ENTER buttons) the
analog output will be at 1 V.
Page 9
T-DP0301-C Manual
CHAPTER 5 - SERIAL INTERFACE
SeeLeveL ELD Portal Format and Signal Format
• The supported signal format is bidirectional serial (separate TX and
RX lines), RS232 voltage levels, 9600 baud, 8 bit, no parity, 1 stop bit.
• All messages obey the following format: [start sequence] [total
number of bytes in message] [message ID] [payload - optional] [CRC]
[stop sequence]
• All multi-byte parameters are transferred big-endian (MSB rst)
• Start sequence: [0xFE][0xFE][0x24]
• Total number of bytes in message (1 byte)
• Message ID (1 byte)
• Payload (optional depending on the message)
• CRC (1 byte) = direct sum of all preceding bytes, truncated to 1 byte
• Stop sequence: [0xFF][0xFF][0x2A]
SeeLeveL Query Message (ELD -> SeeLeveL)
• Value: 0x00
• Allows the ELD to query the SeeLeveL device
• [0xFE][0xFE][0x24][0x09][0x00][0x29][0xFF][0xFF][0x2A]
SeeLeveL Query Response (SeeLeveL -> ELD)
• Value: 0x01
• SeeLeveL responds with model ID (1 byte), H/W Rev (1 byte), S/W
Rev (2 bytes), alarm capability (1 byte), and SN support (1 byte). If
the SeeLeveL device supports a unique serial number, it will follow
(8 bytes in length).
• Example: SeeLeveL model ID = 0x01, hardware rev = ‘E’ (0x45),
software major rev = 0x05, minor rev = 0x09, no alarm capability
= 0x00 (0x01 = alarm capable), serial number supported = 0x01
(serial number not supported = 0x00), and a serial number =
0x0102030405060708:
• [0xFE][0xFE][0x24][0x17][0x01][0x01][0x45][0x05][0x09][0x00][0x01]
[0x01][0x02][0x03][0x04][0x05][0x06][0x07][0x08][0xB1][0xFF][0xFF]
[0x2A]
Page 10 T-DP0301-C Manual
SeeLeveL Handshake Demand Message (SeeLeveL -> ELD)
• Value: 0x02, 1 byte payload
• ELD must respond with the proper coded response in order to either
begin or continue the transfer or broadcast of liquid levels from the
SeeLeveL device. Handshake demands will be broadcast at random
times.
• Example:
• [0xFE][0xFE][0x24][0x0A][0x02][0x3E][0x6A][0xFF][0xFF][0x2A]
ELD Handshake Response (ELD -> SeeLeveL)
• Value: 0x03, 1 byte payload
• To calculate the response, the payload from the SeeLeveL Handshake
Demand Message is used as an address/oset to fetch the contents
of the lookup table:
• Response to example above:
• [0xFE][0xFE][0x24][0x0A][0x03][0x85][0xB2][0xFF][0xFF][0x2A]
• Contact Garnet Instruments at 1-800-617-7384 or at info@
garnetinstruments.com to set up the appropriate working
relationship. Once this is established, the handshake response table
will be provided.
Send Liquid Level Message (ELD -> SeeLeveL)
• Value: 0x04, no payload
• SeeLeveL responds with a single liquid level or a handshake demand
message.
• [0xFE][0xFE][0x24][0x09][0x04][0x2D][0xFF][0xFF][0x2A]
Begin Liquid Level Broadcast Message (ELD -> SeeLeveL)
• Value: 0x05, no payload
• SeeLeveL responds with a liquid level or with a handshake demand
message.
• [0xFE][0xFE][0x24][0x09][0x05][0x2E][0xFF][0xFF][0x2A]
Stop Liquid Level Broadcast Message (ELD -> SeeLeveL)
• Value: 0x06, no payload
• SeeLeveL will cancel any further broadcast of liquid level.
• [0xFE][0xFE][0x24][0x09][0x06][0x2F][0xFF][0xFF][0x2A]
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