Network Operation (Bus As-1); Remote Access - ADVANSEA MULTI S400 Manuel Utilisateur

Standby mode is not saved. At any time, simply pressing one of the four keys
or cutting off the power stops standby mode and returns all device
functions to normal.

2. 6. Network operation (Bus AS-1)

The AS-1 bus is used to connect products in the advanSea family via a rapid and
reliable exchange protocol. Only the bus wires need to be connected. No start-up
settings are required.
The communication protocol allows for multiple data exchange at previously defined
transmission speeds.
Thus, it is possible:
• to exchange several similar measurements on the same bus, for
example: several speedometer sources.
• to change the units, the alarm threshold values or to calibrate from a
single instrument.
• to activate or deactivate alarms from a single instrument.
The protocol allows exchange of similar data from different sources (direct
measurement from the sensor, or from the bus or via NMEA).
2.6.1. Displaying multiple data
In order to display multiple data, a repeater instrument (without a sensor) should be
differentiated from a measurement instrument (with a sensor or receiving NMEA
data).
A repeater instrument can display maximum 2 multiple data available on the bus
(for example: port speed and starboard speed). If there are more than 2 multiple
data present on the bus (for example 3 speed sensors), the repeater will only read
the information from the 2 measurement instruments with the lowest serial
numbers.
A measurement instrument (with a sensor or receiving NMEA data) will only display
the data from its own sensor or from the NMEA source received, even if other
similar data are available on the bus.

2.6.2. Remote access

A repeater instrument (without a sensor) can read and write, via AS-1 bus, all the
calibration parameters or the alarm thresholds from the same type of measuring
instrument. Thus, it is possible to calibrate the speed from the MULTI display
connected to the bus.
Installation and Operation Manual S400 series
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