Specifications

Simrad MS50 – Chapter 5. Appendices C-1
General
The AT command set allows you to configure the Simrad MS50 ASD
function directly from your PC keyboard. The AT characters are a
prefix to the commands you issue to the Simrad MS50’s ASD service.
Most communication applications do not require knowledge of AT
commands.
Every time you type AT, you are essentially asking for the Simrad
MS50 ASD’s ATtention. For instance, if you want to answer an in-
coming data call, you would type ATA to answer:
ATAç
When a value associated with a command is not entered, it is as-
sumed to be 0, f.ex.:
AT&D equals AT&D0.
Hanging up – escape sequence
Once the the Simrad MS50 ASD is online to another system, the only
command it recognises is an escape code that contains three typed
pluses, (+) which forces the Simrad MS50 ASD back to command
mode.
The following should be done, when issuing the escape command:
• Wait one second after sending the last item of data.
• Type
+++ with less than one second between the characters.
• Wait one second, an "OK" response should appear.
Do not type the AT prefix or Carriage Return. The guard time of one
second before and after the code prevents the Simrad MS50 ASD
from misinterpreting the occurrence of +++ in the transmitted data
stream.
If necessary, the character used in the escape code or the duration of
the guard time can be changed by altering Register S2 or S12,
see S-register commands.
• In response to
+++, the Simrad MS50 ASD returns to com-
mand mode.
• To hang up, key
ATHç
• To return to online mode, key ATOç
Appendix C – AT commands
AT commands
AT commands
Appendix C