steute RF Rx SW868-USB Originalbetriebsanleitung Seite 8

RF Rx SW868/SW915/SW917/SW922-USB
Telegrammaufbau / Funkempfänger
Telegram structure / Wireless receiver
English
Selection operation mode
There are 6 different operation modes that can be selected after
switch-on. For the selection a telegram with an appropriate command
must be transferred to the receiver.
Sniffer mode of operation
In the Sniffer mode all received telegrams are output at the serial in-
terface.
Gateway mode of operation
In the Gateway mode only telegrams of switchgear are displayed. Re-
sponse telegrams of receivers or repeaters are suppressed.
Receiver mode of operation
In this mode only telegrams of switchgear are displayed that have
been taught in before. The teachng in or deleting of switchgear is car-
ried out in the Learn Mode.
For the selection the receiver must receive a telegram with the appropriate command.
The telegram must have the following structure:
Byte 1
Meaning PREAMBLE
Response of receiver
Byte 1
Meaning PREAMBLE
2 3
LEN CMD CHECKSUM
2 3 4
LEN CMD STATE
Repeater 1K mode of operation
In this mode telegrams of switchgear are received and transferred in
order to increase the sensing range. Telegrams of other repeaters or
response telegrams are ignored.
Repeater 2K mode of operation
In this mode telegrams of switchgear are received and transferred in
order to increase the sensing range. Telegrams of other repeaters or
response telegrams are ignored. Telegrams of other 2K repeaters or
response telegrams are ignored.
Teach in mode of operation
In the teach in mode switchgear can be taught in or deleted. A maxi-
mum of 40 addresses can be stored. A telegram with an appropriate
command must be transferred to the receiver.
4
PREAMBLE
LEN
CMD
CHECKSUM
5
CHECKSUM
PREAMBLE
LEN
CMD
STATE
CHECKSUM
8 / 16
Meaning
0x03
telegram length (here 3)
operation mode: 0x75: Sniffer Mode
0x76: Gateway Mode
0x82: Receiver Mode
0x81: Learn Mode
0x91: Repeater 1K
0x92: Repeater 2K
check sum for verification of data
(Modulo 256) byte 1 - 3
Meaning
0x03
telegram length (here 4)
new operation mode
command status: 0xAA operation
successful
0xEE error
check sum for verification of data
(Modulo 256) byte 1 - 5