Research Concepts RC1000 User Manual

Page 40

Advertising
background image

QUERY NAME COMMAND

This query command instructs the RC1000A to send back to the host
computer an indexed satellite name and azimuth position count from the
list of located satellites stored in non-volatile memory. This list is
comprised of those satellites that were saved via the SET mode in the
RC1000A. A maximum of 50 can be in the list. This query command
contains 7 bytes and the format is

byte 0 : STX

byte 1 : 'AA' where AA is the RC1000A address

byte 2 : '35h' the query command code

bytes 3,4 : 'XX' where XX is the index of the satellite name

being requested. Normally this would be '01'
the first time thru and then incremented until
the 'YY' (YY being the last entry in the list.)
satellite name is read.

byte 5 : ETX

byte 6 : 'chksum" the checksum

The normal response to this query command contains 19 bytes and the
format is as follows ...

byte 0 : ACK

byte 1 : 'AA' where AA is the RC1000A address

byte 2 : '35h' the query command code

bytes 3,4 : 'XX' where XX is the index of the satellite

name

being requested.

bytes 5,6 : 'YY' where YY is the total number of satellite

names contained in the list.

bytes 7-13 : This field will contain the satellite name.

bytes 14-16: This field will contain the satellite azimuth

position count - 000 to 999.

byte 17 : ETX

byte 18 : 'chksum' the checksum

Advertising