Rs-232-interface operation – Procom VOR/ILS Analyzer EVS200 User Manual

Page 39

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VOR/ILS Analyzer EVS200

0796.1800.02

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30

Chapter 3: Operation

RS-232-Interface operation

All important unit functions can be remote controlled via the RS-232-Interface (V24 standard) by a PC
terminal which can be operated with commercial terminal programs (e.g. Telix, Procomm...). AS a data
terminal (DDE) the VOR/ILS Analyzer EVS200 must be connected with a RS-232-1:1-Interface. Also
it is possible to control the unit with an user defined program. The necessary commands for that pur-
pose are described below.

COM-Parameter

The com parameters parity, number of data bits, and stop bits cannot be changed and are defined as
"firmware“.

non parity bit

(N),

8 data bits

(8),

1 stop bit

(1).

Handshake

Hardware handshake is renounced.
Handshake is performed by software as a transmitted sequence e.g. "READY“ or as a measuring
value or a tuning value
e.g. "RF107000“.

Control commands

There are two categories of control commands.

super commands (mode independant, unit related)
mode dependant commands (specified mode must first be selected)

The following table makes clear the control commands structure.

unit related

control commands

mode dependant control commands

ILS-Mode

VOR-Mode

∆∆∆∆

Level-Mode

BEACON-

Mode

BI

EC0
EC1

LA

LO

MB

MI

ML

MV

RES

RF(Freq. kHz)

RF

TEST

VER

AF8

AM2
AM3
AM8
AM9

BW0
BW1

D1
D2

DD0
DD1

FA0
FA1
FA2
FA3

PH

SD0
SD1

AF8

AM0
AM1
AM8
AM9

BE
D1
D2

FA0
FA2
FA3

FM0
FM1

BW0
BW1

LR
LD

SR

AF4
AF5
AF6
AF7

AM4
AM5
AM6
AM7

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