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RFbeam Microwave GmbH | Schuppisstrasse 7 | CH-9016 St. Gallen | www.rfbeam.ch | K-LD2 | data sheet

09/2018 - Revision B | Page 14/20

Command Classes

The command set is divided into different classes.

Every class contains a set of parameters.

COMMAND SET DESCRIPTION

Parameter Type

Cmd Class Volatile

Purpose

System parameters

S

Yes

System relevant parameters to configure the sampling and interference suppression

Detection parameters

D

Yes

Specific parameters to configure the detection algorithm

Array parameters

A

Yes

System specific tables

Flash read parameters

F

Yes

Read only parameters

Real-time read parameters

R

No

Real-time system and detection information

Basic write parameters

W

No

Basic write parameters to configure the system

Complex read parameters

C

No

Advanced read-out parameters

Testing parameters

T

No

Parameters to test the hardware

Table 4: Command classes

Error message

Description

@E01<CR><LF>

Value out of limits

@E02<CR><LF>

Parameter number does not exist

@E03<CR><LF>

Command class does not exist

@E04<CR><LF>

Writing to EEPROM error

@E05<CR><LF>

Command format error

@E06<CR><LF>

UART communication error

Table 7: Error messages

Prefix

Command class

Parameter

number (Hex)

Value (Hex) 8

or 16Bit wide

«Enter»

Example request

K-LD2 response

Comment

$S06<CR>

$S0602<CR>

@S0601<CR><LF>

@S0602<CR><LF>

Get actual value

Set new value

Table 5: Command format

Table 6: request/response example

Error messages

The K-LD2 responds with a message from the table

below if an error has occurred.

Command Format

Every command is ASCII coded and needs to be sent

over the serial interface by a host CPU or an ASCII

terminal program. Every request needs to start with

the prefix

$ and ends with a <CR> (0x0D in Hex). The

K-LD2 always answers with @ as a prefix excluding the

command class C.