Serial Connection - Wega Espresso Coffee Machine Use And Maintenance Manual

9. SERIAL CONNECTION

The system is able to interface in serial mode with the coffee machine.
Refer to the technical specifications for dosing for their correct configuration.
Connection is made by means of an RS232 serial line, with the appropriate cable.
Serial transmission characteristics:
• BAUD RATE
• DATA LENGTH
• PARITY
• STOP BIT
• CLOCK RATE
• VOLTAGE LEVELS
Operation
A code corresponds to each dosing key. When a serving is requested from a certain key, the dosing device sends the relative code by means
of its serial line. If it receives in reply the same code or a code from 1 to 15 (decimal) the serving is delivered, otherwise it is deleted. The
codes are typical of the traditional interface with the Gicar Stroke Count, which transmits a code that makes it possible to recognize the
staff that is using the machine (1...13 : waiters, 14 : manager, 15 : owner).
List of codes used by dosing:
• 11H Group 1
• 12H Group 1
• 13H Group 1
• 14H Group 1
• 15H Group 1
• 16H Group 1
• 17H Group 1
• 19H Group 1
• 21H Group 2
• 22H Group 2
• 23H Group 2
• 24H Group 2
• 25H Group 2
• 26H Group 2
• 27H Group 2
• 29H Group 2
• 31H Group 3
• 32H Group 3
• 33H Group 3
• 34H Group 3
• 35H Group 3
• 36H Group 3
• 37H Group 3
• 39H Group 3
• 41H Group 4
• 42H Group 4
• 43H Group 4
• 44H Group 4
• 45H Group 4
• 46H Group 4
• 47H Group 4
• 49H Group 4
The system replies code 15 (decimal), thus enabling delivery of the serving (even if the activation key is inserted).
During any data reading or deletion operation, the system does not reply or replies with a code which is not recognized by the dosing. In this
case, delivery is not performed and the serving is not counted.
espresso coffee machine - servings count
1200 bit/sec
8 bit
EVEN
2
64
0/+5 Vdc
Key 1
Key 2
Key 3
Key 4
Key Tea 1
Key Tea 2
Stop/Cont/Prog Key (Dosmask series)
Stop/Cont/Prog Key (Dosmask series)
Key 1
Key 2
Key 3
Key 4
Key available
Key available
Stop/Cont/Prog Key (Dosmask series)
Stop/Cont/Prog Key (Dosmask series)
Key 1
Key 2
Key 3
Key 4
Key available
Key available
Stop/Cont/Prog Key (Dosmask series)
Stop/Cont/Prog Key (Dosmask series)
Key 1
Key 2
Key 3
Key 4
Key available
Key available
Stop/Cont/Prog Key (Dosmask series)
Stop/Cont/Prog Key (Dosmask series)
R
CNS 9
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