Diesse MINI-CUBE - Data Communication Protocol

M I N I - C U B E – U S E R M A N U A L
Rev 1.3 06/2018 50/59
The electrical levels of the signals are of the standard RS232C type.
- The default transmission speed is 9600 bit/s, the data format is of the 8 data bit
type, 1 stop bit and no parity bits
- The DB9 Male “RS232C” connector reflects the following pin-out:
PIN
SIGNAL
2
Rx of data from Host
3
Tx of data towards Host
5
GND
Foreword: Hexadecimal ASCII (HEX-ASCII) representation
In the protocol described below a great deal of the parameters and data are
represented in Hexadecimal ASCII (HEX-ASCII) format, in other words:a byte with
a value of 0x7A is represented by two ASCII characters: ‘7’ (0x37) and ‘A’ (0x41),
the first represents the most significant nibble and the second, the least
significant.
Examples:
Original Byte
Representation HEX-ASCII
Hexadecimal value
H characters
L characters
0x45
‘4’ (0x34)
‘5’ (0x35)
0xC8
‘C’ (0x43)
‘8’ (0x38)
0x6F
‘6’ (0x36)
‘F’ (0x46)
0x10
‘1’ (0x31)
‘0’ (0x30)
As can be seen, this type of representation means that two ASCII characters are
necessary for representing the value of one byte.
General remarks: Delay in replying
To allow the machine time to activate the reception mode it is necessary to enter a
delay of 1 second on the reply.
Message for sending Results: Command 0x51
This message is sent by the MINI-CUBE to the host computer. The message
contains the results of the analyses carried out on one or more tubes. The host