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Laser Triangulation Sensors. RF602 Series
RF602 [Revision 1.2.0] 28.01.2019
11.6. Configuration parameters
11.6.1. Rate of data transfer through serial port
This parameter defines the rate of data transmission via the bit-serial interface in
increments of 2400 bit/s.
For example
, the parameter value equal to 4 gives the
transmission rate of 2400*4 = 9600 bit/s.
Note
. The maximum transmission rate for RS232 and RS485 interfaces is 921,6
kbit/s.
11.6.2. Net address
This parameter defines the network address of the sensor equipped with RS485
interface.
Note
. The network data communication protocol assumes the presence of a
‘master’ in the net, which can be a computer or other information-gathering device, and from
1 to 127 ‘slaves’ (RF602 Series sensors) which support the protocol.
Each ‘slave’ is assigned a unique network identification code – a device address.
The address is used to form requests or inquiries all over the net. Each slave receives
inquiries containing its unique address as well as ‘0’ address which is broadcast-oriented
and can be used for formation of generic commands, for example, for simultaneous latching
of values of all sensors and for working with only one sensor (with both RS232 port and
RS485 port).
11.6.3. Factory parameters table
Parameter
Value
Baud rate (RS232 or RS485)
9600 bit/s
Net address
1
Mode of data transfer
request
11.7. RIFTEK protocol (binary format)
11.7.1. Request
'Request' is
a two-byte
message, which fully controls a communication session and
can be transmitted by the 'master'. The ‘request’ message is the only one of all messages in
a session where
the most significant bit is set at 0
, therefore, it serves to synchronize the
beginning of the session. In addition, it contains the device address (ADR), code of request
(COD) and, optionally, the message [MSG].
Request format ('master'):
Byte
Bits
Description
7
6
5
4
3
2
1
0
0
0
ADR
network address
1
1
0
0
0
COD
code of request
2
1
0
0
0
MSG[0] lo
lower tetrad of the 0th byte
3
1
0
0
0
MSG[0] hi
higher tetrad of the 0th byte
4
1
0
0
0
MSG[1] lo
lower tetrad of the 1st byte
5
1
0
0
0
MSG[1] hi
higher tetrad of the 1st byte
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