Sb - Enable Channel B Breaks; Si - Synchronization Interval - Teledyne WORKHORSE Operation Manual

May 2015
SB – Enable Channel B Breaks
Purpose Allows the H-ADCP to ignore a <Break> on the Channel B RS-422 lines.
Format SBn
x = 0 (disable hardware-break detection on Channel B)
Range
x = 1 (enable hardware-break detection on Channel B)
Default SB1
Recommended Setting. Special applications only.
Description Set SB0 to prevent noise from being processed as a <Break> on the RS-422 lines. This
command is used when another system is connected to the H-ADCP over the RS-422
lines. In this configuration, disconnecting or connecting the other system can cause the
H-ADCP to interpret this as a <Break> over Channel B. A break will cause the H-ADCP to
stop pinging and the deployment will be interrupted.
To set the SB command to SB0, do the following:
1. Send SB0.
2. Immediately following the SB0 command, send a Break (see Break).
3. The SB0 command is now in effect and the H-ADCP will ignore potential <Breaks>
on the Channel B RS-422 lines.
Use SB0 only when the H-ADCP does not conserve power (i.e. go to sleep) between samples
(see CL – Sleep Enable
When changing the SB command, confirm the change by immediately following the SB change
with a BREAK (see Break).
The SB command must be set to SB0 to use the Master/Slave setup.
The SB command is not affected by the CR command (see
This command is available in firmware versions 11.08 and higher.

SI - Synchronization Interval

Purpose Sets how many pings/ensembles to wait before sending the next synchronization pulse.
Format SInnnnn
Range nnnnn = 0 to 65535
Default SI0
Recommended Setting. Special applications only.
This command has no effect unless SM = 1
Description Use the SI command to set how many pings/ensembles (depending on the SA command)
to wait before sending the next synchronization pulse.
Page 190
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
and SS - RDS3 Sleep Mode).
WorkHorse H-ADCP Operation Manual
CR – Retrieve Parameters)