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WorkHorse H-ADCP Operation Manual
May
2015
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Page 189
Ping Synchronization Commands
The Teledyne RD Instruments Sleepy Sensor Synchronization (TRDS
3
) protocol allows an H-ADCP to
synchronize measurements with another H-ADCP or any other instrument that adheres to the RDS
3
specification.
Available Ping Synchronization Commands
>s?
SA = 001 ----------------- Synch Before/After Ping/Ensemble Bottom/Water/Both
SB = 1 ------------------- Enable Channel B Breaks (1=YES,0=NO)
SI = 00000 --------------- Synch Interval (0-65535)
SM = 0 ------------------- Mode Select (0=OFF,1=MASTER,2=SLAVE,3=NEMO)
SS = 0 ------------------- RDS3 Sleep Mode (0=No Sleep)
ST = 00000 --------------- Slave Timeout (seconds,0=indefinite)
SW = 00000 --------------- Synch Delay (1/10 msec)
>
To see the S commands as listed above, the Experton command must be used (see
Expert
Mode
).
Ping Synchronization Command Descriptions
SA - Synchronize Before/After Ping/Ensemble
Purpose
Sets the rough timing of the synchronization pulse.
Format
SAxyz
Range
x = 0, 1
y = 0, 1
z = 0, 1, 2
Default
SA001
Recommended Setting.
Special applications only.
This command has no effect unless SM = 1 or 2.
Description
Use the SA command to set the rough timing of the synchronization pulse. The first pa-
rameter determines whether the Master (or Slave) will send (or wait for) a synchroniza-
tion pulse before or after the conditions set in parameters y and z. If the second parame-
ter is set to Ping, the third parameter determines what kind of ping to synchronize on. If
parameter y is set to Ensemble, the third parameter is ignored (but must still be entered).
Table 32:
Synchronization Parameters
Parameter
Description
SA000
Send (wait for) pulse before a bottom ping.
SA001
Send (wait for) pulse before a water ping.
SA002
Send (wait for) pulse before both pings
SA100
Send (wait for) pulse after a bottom ping.
SA101
Send (wait for) pulse after a water ping.
SA102
Send (wait for) pulse after both pings.
SA01X
Send (wait for) pulse before ensemble.
SA11X
Send (wait for) pulse after ensemble.