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2.1.6 Baud Rates

It is possible to alter the baud rate of the device. This is achieved by using the command

set

outbaud x

, where ‘x’ refers to the desired baud rate. For example, to switch to a baud rate of

19200, send the following:

>set outbaud 19200
Switching to 19200 baud now.  Please adjust terminal baud rate
÷

Note that the baud rate adjustment occurs immediately, without the requirement for a power
cycle.

This command is persistent. Output data will be transmitted at this baud rate until it is changed
again via command.

Baud rate adjustment applies to all instrument interaction after the startup identifying header is
complete, but it does not adjust the baud rate at which the identification head string is
communicated. The startup header will always remain at 9600 baud unless adjusted by the
factory. For example, if the device is configured to use 19200 baud using

set outbound 19200

,

then after a power cycle the device will transmit its header information at 9600 baud for 2
seconds, then immediately switch to 19200 baud for the remainder of its operation.

Baud rate settings (like all settings) are sensor-specific, so if a non-default baud rate is used in
an application, sensors substituted in will require similar setup.

2.2 Common Settings and Configurations

It is common for an AML-1 RT to be paired with either an AML SV•X2change

TM

(sound velocity

sensor) or SVT•X2change

TM

(combined temperature and sound velocity sensor). Most

commands are common to both sensors, with the exception of some commands that adjust
temperature measurement functionality particular to the SVT sensor.

Most MBES stipulate a particular data format for compatibility and users should check with the
manufacturer for detailed requirements. It is possible to configure an SV or SVT-equipped
AML-1 RT to be compatible with the majority of MBES systems.

2.2.1 Commands for Sound Velocity Sensors (SV and
SVT•Xchange)

When paired with an SV or SVT sensor, the device will stream sound velocity measurements in
units of m/s, and temperature measurements (in the case of SVT) in units of

o

C.

AML Oceanographic Ltd.

9/18

Содержание AML-1 RT

Страница 1: ...AML 1 RT User Manual Multiparameter Real Time Instrument For more information visit AMLoceanographic com or call 1 250 656 0771 ...

Страница 2: ...Revision History Revision Date Description 1 1 29 Sept 2020 Document Created 1 2 27 April 2021 RS 485 Details Added AML Oceanographic Ltd 2 18 ...

Страница 3: ...8 2 1 6 Baud Rates 9 2 2 Common Settings and Configurations 9 2 2 1 Commands for Sound Velocity Sensors SV and SVT Xchange 9 2 2 2 Commands for Pressure Sensors P Xchange 11 3 Instrument Maintenance 12 4 Appendix A Equipping an Instrument 13 4 1 Installing sensors 13 5 Appendix B Contact AML 14 5 1 Service 14 5 2 Sales 14 6 Appendix C Regulatory and Warranty Statements 15 AML Warranty Policy New P...

Страница 4: ... facilitate power and data transmission The instrument itself has no configuration but instead provides access to the command prompt of the installed sensor Configured behaviour such as baud rate measurement frequency formatting etc is programmed and persistent within the installed sensor not the AML1 RT instrument For this reason behaviour of the instrument may change with the installation of a n...

Страница 5: ...ly one connector a 6 pin female MCBH6F located on the face opposite the sensor port This connector is used to provide external power and serial communication during deployment The instrument is factory set to either RS 232 or RS 485 The pin diagram for the connector is shown in Figure 1 below Accompanying cables of various lengths are available with the AML 1 RT Contact AML for details Pin RS 232 ...

Страница 6: ...Baud rate of 600 1200 2400 4800 9600 19 200 or 38 400 baud 9600 is the default baud rate The default baud rate for most installed sensors is 9600 Note that this is not guaranteed however as some sensors may be factory configured to an alternative baud rate depending on application or request 2 1 1 Typical Startup Sequence To get an AML 1 RT device up and running follow the procedure described belo...

Страница 7: ...measurements S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 01 2000 0 021 SV X 2d S 209922 01 0...

Страница 8: ...ted by receipt of any ASCII character For example noise on a communication line may be inadvertently interpreted as a character halting sensor operation In these cases best practice is to configure the sensor to automatically recommence data streaming after a period of inactivity when at prompt This is achieved using the command set automon x where x is the elapsed time of inactivity in millisecon...

Страница 9: ...header information at 9600 baud for 2 seconds then immediately switch to 19200 baud for the remainder of its operation Baud rate settings like all settings are sensor specific so if a non default baud rate is used in an application sensors substituted in will require similar setup 2 2 Common Settings and Configurations It is common for an AML 1 RT to be paired with either an AML SV X2changeTM soun...

Страница 10: ... output stream Used to emulate output from legacy Micro X instruments no yes Format of SV output SET SVFORMAT XY X is number of digits before decimal Y is number of digits after decimal 43 xxxx yyy User configurable Baud rate SET BAUD x X is desired baud rate Effective immediately without power cycle Does not alter ident header baud rate 9600 9600 19200 38400 57600 115200 SV sample averaging SET S...

Страница 11: ...firmware version Baud rate SEC 652 SET BAUD x X is desired baud rate Effective immediately without power cycle Does not alter ident header baud rate 9600 9600 19200 38400 57600 115200 Automonitor SET AUTOMONITOR xxx Instrument will start to stream data after user interrupt time specified in milliseconds of inactivity 0s will not start streaming User configurable up to 100s Taring the sensor ZERO W...

Страница 12: ...llation of the X2change sensor Appendix B Check for nicks and cuts on the cable After each use Clean and rinse the instrument using fresh water Dry the instrument completely and store it in a cool dry place Monthly Apply a layer of Molykote 44 medium silicone grease to the female half of the connection as shown and fully insert the plug Wipe away any excess that squeezes out This will lubricate bo...

Страница 13: ...ottom of the port 2 Check the X2Change sensor s o rings for cleanliness and replace if damaged Apply o ring grease to the new o ring before replacing it 3 Align the sensor with the sensor port so that the key of the mating connector pins are aligned Key alignment is important it can be difficult to insert a sensor if the clocking is not correct 4 Place the sensor into the port and press the sensor...

Страница 14: ... service AMLoceanographic com Phone 1 250 656 0771 Phone 1 800 663 8721 NA http www AMLoceanographic com 5 2 Sales For all general sales inquiries Email sales AMLoceanographic com Phone 1 250 656 0771 Phone 1 800 663 8721 NA http www AMLoceanographic com AML Oceanographic Ltd 14 18 ...

Страница 15: ...anographic The warranty of third party sensors will apply as per the specific vendor s warranty policy The warranty does not apply if the instrument has been damaged by accident or misuse and is void if repairs or modifications are made by other than authorized personnel This warranty is the only warranty for new products given by AML No warranties implied by law including but not limited to the i...

Страница 16: ...7 Technical Overview AML Oceanographic Ltd 16 18 ...

Страница 17: ...AML Oceanographic Ltd 17 18 ...

Страница 18: ...AML Oceanographic Ltd 18 18 ...

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