Technical data

Technical Datasheet
&
User’s Manual
Narrowband multi-channel data radio modem
LinkWiser™-S400M Rev. 2.1
Cellution Inc.
#317, NKIC, 48-84 Honguen-1dong, Seodaemun-gu, Seoul, Korea Zip: 120-760
Enquiries: [e-mail]
/ [e-mail]
Voice: [phone] / Fax: [phone]
11
‘1’: Enabled
Ex): Assuming that S130 = ‘0’ & S131 = ‘1’, the TX data
will automatically routed to & by the repeater(address
defined by S132)
R/W ATS132 Repeater
Address
Repeater Address
Ex): Assuming that S130=’1’, this register will set the
desired repeater’s address. All data will be sent to the
repeater node first, and that repeater will automatically
route the data to the preset destination.
NOTE:
*The SLEEP mode realizes less than 23mA current consumption. In this case, entire RF section
is disabling where baseband is active. The sleep mode w RTC (Real Time Clock) is available on
request for repetitive wake-up operation.
12-2 Transparent Mode
The transparent mode is the default communication mode, based on null-module cable emulation.
Basically, the module in the transparent mode supports a complete wire replacement for RS-485,
RS-232 or RS-422 cable by half-duplex communication method.
This mode can be used as Point to Point or Point to Multi-point with all the modules receiving the
messages sent by any module. DTE should hold I.D recognition & generation algorithm in the USER
DATA.
12-2-1 Operation
Radio modules in transparent mode behave like wired serial links. Therefore, radio modules
automatically transmit every serial data received on their radio link, and also transmit all radio
information received on their serial link. The transparent mode can be operated for both point-to-point
and multipoint links.
The data flow control may be carried out by software applications used by various protocols such as
ProfiBus, ModBus, etc…
Consequently, the latency time is reduced to its minimum as the module no needs wait to check the
acknowledgment byte.
Any unit, with the same network ID and group ID, configured in transparent mode will receive every
radio data flowing on the same communication channel, i.e. on the same frequency.
12-2-2 Examples of configuration with AT commands for transparent mode
User +++ // Switch to Configuration mode
Module >
User ATS120=192.168<CR> // Set network ID to 192.168
Module >
User ATS121=120<CR> // set group id to 120
Module >
User ATS122=10<CR> // set device id to 10
Module >
User ATO<CR> // exit from the configuration mode
Module Good Bye!
User AT+ADDR=0 // set the operation mode to transparent mode
User DATA
12-3 Address Mode