Em Datagram Formats; Introduction; Presentation Format - Kongsberg EM 710 Maintenance Manual

EM 710 / Base version

8 EM DATAGRAM FORMATS

8.1

Introduction

Note
Note
Note
8.2

Presentation format

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The information herein is common for the EM 3002, EM 3000,
EM 2000, EM 1002, EM 710, EM 300 and EM 120 multibeam
echo sounders. Some of the information may not be relevant for
your specific system. Please disregard this.
The information in this document is not valid for the EM 12, EM
100, EM 950 and EM 1000 multibeam echo sounders.
The formats for data input and output to and from the EM Series
multibeam echo sounders are described here. The information
given here is valid for the Kongsberg Maritime multibeam echo
sounders introduced after 1995.
In order to meet special customer requirements, Kongsberg
Maritime may have to change the datagram formats described
here. The formats presented in this document may therefore be
altered without prior notice, although backward compatibility
will be maintained as far as possible. Before software is written
in accordance with this document, it is strongly recommended to
contact Kongsberg Maritime to ensure that the latest version is
used, and that any planned changes are taken into account.
The format description is according to the NMEA 0183 standard
for ASCII fields, with the ASCII character(s) given as follows:
• "x.x" defines a variable length numerical field, with
optionally included decimal point and sign.
• "c--c" defines a variable length field of printable characters.
• "x--x" defines a variable length field of numeric characters.
• "a_ _" defines a fixed length field of alphabetical characters
(for example "aa"= two character long field.
• "x_ _" defines a fixed length field of numeric characters.
For binary fields, the length is given in number of bytes plus
"U" for unsigned and "S" for signed data.
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