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Simrad AP50 Autopilot
146 20221032B
Clutch/bypass
Verifies if a clutch or bypass valve has been activated when
performing the rudder test.
FUV1R2
Shows the software version for a connected FU50 Steering
Lever
NMEA Data
--- XTE ---NM
OK BWW 270°
INV BRG POS-WP ---°
OK POS/LAT N 58°33.222'
OK POS/LON E 10°50.013'
NMEA DATA
OK COG 270°
INV SOG ---kt
OK WIND R 45.3°
FRM SPEED ---kt
INV DEPTH ---m
Select the "NMEA DATA" by pressing the (STBD) button
and confirm this by rotating the course knob clockwise.
The menu provides you with status information about the
different NMEA messages used by the system.
Decoding
The incoming signals are decoded according to a built-in
priority table in the AP50. Cross Track Error and bearing
information is taken from the NMEA messages with highest
priority.
For all data items, one of the following codes will be displayed:
--- No data or no NMEA sentence containing the data
needed at the input port.
OK Valid data found
INV A message with invalid information.
FRM Message has a format failure such as:
a) Incorrect check sum
b) Wrong contents in the datafield(s)
If data are missing or invalid, perform the following:
• Check the NMEA signal monitor (see below).
• Check the interface setup in the Installation Menu (see page
126).
• Check the navigator set-up and make sure it is transmitting
appropriate NMEA data.
• Perform a NMEA Port Test (hardware) (see below).
Note ! The “WIND” reading is the apparent wind from the left (L) or
right (R). The “SPEED” reading is the speed through water.