User manual

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SeaBird Firmware and Settings for 4K Packets
SIM V2.8 (or later) and the UIM, SBE44 V1.9 (or later) support binary relay commands.
The binary relay command works like the standard relay command except that all characters
received by the SBE44 are relayed to the SIM and the relay termination character is ignored.
Settings for 4K Packets
The SIM and UIM settings in the transmission sequence scenario described in this
Appendix are shown next. These settings were designed to effectively coordinate the
communications relay and data packet transmission between the MMP, SIM and UIM.
Guidelines for these settings are below.
The UIM terminates Relay when the time since the last character the SBE44
receives exceeds the time specified by the RTERMMAX command (5500 msec
default) or the time specified by the RTOTALMAX command (600 sec default).
Relay is terminated by the SIM when the time since the last character received by
the SIM is greater than the time specified by the BINARYGAP command
(5000MSEC default) or the total time specified by the RELAYMAX command
(600 SEC default) is exceeded.
UIM command RTERMMAX must be greater than SIM command
BINARYGAP.
Setting the PONTONE command to ‘Yes’ should cause the UIM to send a wake
up tone to the SIM upon power-up. If the wake-up tone is not sent, the MMP
forces a tone detect that wakes up the SIM after 40 seconds.
SIM Settings
SBE 37 SURFACE MODEM V 2.8
wait time for dataNN response = 1000 msec
wait time for relay command response = 600 seconds
binary relay character timeout = 5000 msec
RELAYMAX=600
BINARYGAP=5000
echo = yes
execute pwron command on powerup = no
UIM Settings
SBE 44 UNDERWATER MODEM V 1.9
sensor baud rate = 9600
break character length = 1000 milliseconds
time out after 30 seconds without receiving a valid command
!01TIMEOUT=30
termination character is 62, char = >
Relay Command Settings:
relay termination characters = <CR><LF>
total time for response = 600 seconds
wait 0 milliseconds before sending the command
halt relay after a gap of 5500 milliseconds between characters
!01RTOTALMAX=600
!01RTERMMAX=5500
GDATA Command Settings:
total time for response = 30 seconds
wait 0 milliseconds before sending the command
halt acquisition after a gap of 1000 milliseconds between characters
!01GTERMMAX=1000
GDATA command string = NO STRING
Appendix J-8