Consilium SELUX ST, Installation And Service Manual

Page: 42 / 180

SERIAL INTERFACE SPECIFICATION
2.7 Rev. E
TLB – Target label
Common target labels for tracked targets. This sentence is used to specify labels for tracked
targets to a device that provides tracked target data (e.g. via the TTM – Tracked target
message). This will allow all devices displaying tracked target data to use a common set of
labels (e.g. targets reported by two radars and displayed on an ECDIS).
$--TLB,x.x,c--c,x.x,c--c,...x.x,c--c*hh<CR><LF>
Additional label pairs (see Note 1)
Label assigned to target ‘n’ (see Note 2)
Target number ‘n’ reported by the device.
NOTE 1
This sentence allows several target number/label pairs to be sent in a single
message, the maximum
sentence length limits the number of labels allowed in a message.
NOTE 2
Null fields indicate that no common label is specified, not that a null label
should be used. The intent is to
use a null field as a place holder. A device that provides tracked target data
should use its ”local” label (usually the
target number) unless it has received a TLB sentence specifying a common
label.