User Manual

9.427 NDSatCom-Step-Track

This page describes the device driver and the device window for the NDSatCom step track system. The unit must be running a recent software version to be capable to be controlled by the VLC/M&C system.

Device window pages

The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .

--- The first parameter page displays/controls the antenna pointing. Actual readings and set points are shown in separate fields, so you can see where the antenna is going to while it is moving.The set point parameters are shown with a resolution of 0.1 deg for azimuth/elevation and 1 deg for the polarization. This to make the spin buttons work in a convenient way. You still may enter azimuth/elevation values with a 0.01 deg resolution, the antenna controller accepts this. If you change the antenna pointing, tracking automatically stops.The "moving" LED doesn't work with this device, the antenna controller doesn't provide this information.
--- The second parameter page displays/controls the tracking mode resp. state. Refer to the ND SatCom manual for details of the tracking modes in particular.
--- The faults page.
--- The device info page.
--- The maintenance page. The configuration parameters described below are set at this page.

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the software talk to the step track system.

parameter	description
address	The NDSatCom step track system does not use this parameter.
intTrckRecv	Set this to "INTERNAL" if the Step-Track-System contains the internal beacon receiver card.
Serial	Remember to set the line parameters for the serial interface connected to the antenna controller. The NDSatCom step track expects 9600,N,8,1 .

Variables defined by this device driver

name	type	flags	range
info.driver	TEXT	R/O	StringRange R/O
lowLevel.cmd	TEXT		StringRange
lowLevel.reply	TEXT	R/O	StringRange R/O
faults.99	ALARM	R/O	AlarmFlagRange R/O (Communication)
faults.commstat	TEXT	R/O	StringRange R/O
info.type	TEXT	R/O	StringRange R/O
info.port	TEXT	R/O	StringRange R/O
info.frame	TEXT	R/O	StringRange R/O
internal.b	INTEGER	R/O	IntegerRange R/O (0 .. 0)
internal.c	INTEGER	R/O	IntegerRange R/O (0 .. 0)
internal.d	INTEGER	R/O	IntegerRange R/O (0 .. 0)
internal.e	INTEGER	R/O	IntegerRange R/O (0 .. 0)
internal.f	INTEGER	R/O	IntegerRange R/O (0 .. 0)
config.intTrckRecv	CHOICE	SAVE SETUP	EnumRange (NONE INTERNAL)
azimuth	FLOAT		DoubleRange (0.0 .. 0.0)
elevation	FLOAT		DoubleRange (0.0 .. 0.0)
polarization	FLOAT		DoubleRange (0 .. 0)
trackMode	CHOICE		EnumRange (STANDBY REMOTE POSITION MODEL TRACK (NORM) MODEL TRACK (LEARN) MODEL TRACK (PEAKING) SCAN BEACON)
frequency	FLOAT		DoubleRange (0.000 .. 0.000)
satNum	TEXT		StringRange
state.az	FLOAT	R/O	DoubleRange R/O (0.00 .. 0.00)
state.el	FLOAT	R/O	DoubleRange R/O (0.00 .. 0.00)
state.pl	FLOAT	R/O	DoubleRange R/O (0.0 .. 0.0)
state.mode1	TEXT	R/O	StringRange R/O
state.mode2	TEXT	R/O	StringRange R/O
state.beacon	FLOAT	R/O	DoubleRange R/O (0.00 .. 0.00)
state.moving	BOOLEAN	R/O	BooleanRange R/O (true false)
state.limit	BOOLEAN	R/O	BooleanRange R/O (true false)
state.tracking	BOOLEAN	R/O	BooleanRange R/O DIS (true false)
state.peaking	BOOLEAN	R/O	BooleanRange R/O (true false)
reset	TEXT		StringRange
faults.01	ALARM	R/O	AlarmFlagRange R/O (ACU outdoor unit)
faults.02	ALARM	R/O	AlarmFlagRange R/O (AZ limit)
faults.03	ALARM	R/O	AlarmFlagRange R/O (EL limit)
faults.04	ALARM	R/O	AlarmFlagRange R/O (PL limit)
faults.05	ALARM	R/O	AlarmFlagRange R/O (Beacon level)
faults.06	ALARM	R/O	AlarmFlagRange R/O (Volt meter)
faults.07	ALARM	R/O	AlarmFlagRange R/O (Remote/peaking)