Prior to each turnaround, an instrument list is created to fulfill the objectives of the deployment. This usually includes instruments used in previous deployments, and sometimes will include new types instruments or new versions of previously used instruments.
For each deployment, a 'Mooring Roadmap' is created
and issued by the mooring support group, indicating the instrument list and
its mapping into OASIS3 IO ports. This indicates how the can is physically wired
and contains some of the information necessary to configure the OASIS3 software.
A sample Mooring Roadmap follows:
| CAN #1 Current assignment: M2 TNC address: 2003M2 Current Shunt: #7 Ground Fault: #7 |
PwrPerm: 540 | |||||
| Instrument | Power bit | Serial Port | UART | Connector | Analog | |
|---|---|---|---|---|---|---|
| Terminal | - | 0 | 0 | 0A | ||
| Ground Fault | 9 | 9 | 4 | 0B | SW gnd, pin 3 | |
| Inductive T-string |
11 | 11 | 5 | 0C | ||
| Spare Serial | 16 | 16 | 5 | 0D | Runs add'l User I/F | |
| + Tower Wetstar | 13 | - | - | 0E | 5 | |
| Battery/emeter | - | 4 | 4 | 0F | Pin 3, RO | |
| Radio | 1 | 1 | 1 | 1A | (External) | |
| GPS | 12 | 12 | 5 | 1B | (External) | |
| * Metsys | 6 | 6 | 4 | 1C | ||
| Spare Serial | 15 | 15 | 5 | 1D | ||
| PRR | 7 | 7 | 4 | 1E | Note 1,2 | |
| Shutter #0 | 17 | - | - | 1F | 7 | |
| * ISUS | 10 | 10 | 4 | 2A | ||
| CTD - Surface | 5 | 5 | 4 | 2B | Note 1 | |
| * HS2 | 8 | 8 | 4 | 2C | ||
| ADCP | 2 | 2 | 2 | 2D | ||
| pCO2 | 3 | 3 | 3 | 2E | ||
| pCO2 Pump | 4 | - | - | 2F | ||
| OASIS | - | - | - | - | 0-3 | Note 3 |
| Notes: 1. Opto-isolated serial and isolated power 2. Connector 1D is wired with TxD and RxD shorted for PRR. 3. Temperature, batt voltage, pressure 4. This document formatted with standard 8 character tab stops * Instrument is power permed |
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Where
| CAN # | OASIS Controller Number There are currently N OASIS3 controller units, 1-N |
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| Current assignment | Mooring Location Format: ln l: location code [M=Mooring,EP=EqPac] n: ID [ M1,M2,M3,M4,EP1,EP2 ] |
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| TNC address | Terminal Node Controller ID Format: yyyyln yyyy : 4 digit year ln: Location (M1,M2, etc.) |
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| Current Shunt | Current Shunt | ||||||||||||||||||
| Ground Fault | Ground Fault | ||||||||||||||||||
| Instrument | Instrument Name The following instruments are currently supported: CTD Metsys PRR PRR Wiper ADCP HS2 Tower Wetstar pCO2 pCO2 Pump NO3 GPS T-string Ground Fault Spare Serial The following pseudo-instruments are also supported: Terminal Battery ARGOS Radio |
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| Power bit | Bit Vector Position of Power Enable Bit The OASIS software represents the power state of instruments using a single bit in a power word. Logical 1 represents a Power On. The power word is also used at the physical power interface to switch the instruments on and off. Example: An instrument with power bit=9 may enabled by ORing the power word with 0x0200 |
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| Serial Port |
Serial Port This field refers to the Muxed (or virtual) Serial Port number. 32 Serial Ports are available, which are generated by muxing the 8 UARTs in the OASIS3 controller as follows:
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| UART | UART There are eight UARTs in the OASIS3 controller. The first UART, designated 0, is the SCI console port from the CF2 and must be assigned to the User I/F. UARTs 1-7 are built from the TPU ports. UARTs 0-3 exist on the OASIS3 CPU board, and are not multiplexed. UARTs 4-7 are on the OASIS3 I/O boards, one per I/O board, and are multiplexed 7:1. |
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| Connector section | Physical Connector ID Each instrument plugs into a 6-section pie connector on the top of the OASIS can numbered 0-2. The sections are further identified by a letter , A-F (section A is usually also painted white), stamped into the connector and proceeding sequentially clockwise from A. |
The information from the roadmap is combined with the sampling schedule and instrument-specific information provided by each instrument's representative into a spreadsheet used to create the power budget and OASIS3 controller source configuration files (drvTbl.h, custom.h) for the deployment. The system is configured by editing file OASIS.CFG, which specifies the instruments' sampling schedule, driver functions, port assignments, power policy, driver parameters, and system-wide configuration parameters.
For each mooring deployment, a power budget is calculated based on the power source (solar array+battery, battery only), instrument list and sampling schedule. The power budget calulation spreadsheet is linked to the instrument configuration spreadsheet, automatically performing the calculation for the specified configuration.
Currently, locally deployed OASIS3 moorings are powered by 6 20-Watt solar panels that charge a 12 V deep-cycle marine battery. There are approximately 10.8 AH/Day of available power. Moorings deployed in the Equatorial Pacific are powered by a battery pack with approximately 624 AH capacity.