Rohde & Schwarz 890 Series - A3.1 General

V L F > H F R E C E I V E R S f R & S E K 8 9 5 / R & S E K 8 9 6
User Manual f General
A3. Remote Control
A3.1 General
The commands entered on the computer have to be in a specific format. The format or the com>
mand block consists of up to 150 characters. Each command block begins with the ASCII character
LF (= line feed, 10
dec
, in the following represented by r) and ends with the ASCII character CR
(= carriage return, 13
dec
, in the following represented by ?).
r<command block>?
The ASCII character LF is followed by the equipment address in addressed operation or the first
command in unaddressed operation. Addresses from A01 to A99 are admissible. In addressed
operation the equipment address is followed by the first command.
Addressed operation
r<address><command 1><command 2> ... <command x>?
Command blocks beginning with the address A00 are accepted by all receivers, regardless of the
set receiver address.
Unaddressed operation
r<command 1><command 2> ... <command x>?
The command itself consists of a code and up to 21 parameters. Consecutive parameters have to
be separated by a comma. For parameter entry guiding zeros and the plus sign can be omitted.
<code><parameter 1>,<parameter 2> ... <parameter 21>
The code consists of up to five capital letters. The parameters may come as numerical parameter
(numbers and the minus sign), character (small letter) and the question mark. The question mark
(?) signals that a reply is requested.
The reply consists of the code followed by the question mark and the setting value(s). The
reply(ies) is (are) inserted into a reply block, the sequence is not required to be the same as for the
command block. The reply block begins with the ASCII character F (r) and ends with the ASCII
character CR (?). In addressed operation LF is followed by the equipment address. Leading zeros
are not integrated into the reply.
Consecutive commands without parameters are to be separated by a blank (in the following rep>
resented by
≤≥ ).
e.g.: r<command 1> ≤≥ <command 2>?
6164.0717.02_01
> A3.1 >