Innovative BV20, Operation Manual

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Copyright Innovative Technology Ltd 2008 GA794-2
5.7 MULTI-DROP BUS/INTERNAL COMMUNICATIONS PROTOCOL (MDB/ICP)
To use the MDB mode an MDB Voltage Regulator Module should be fitted to the BV20
Expansion Port or alternatively an IF5 Interface Box can be used. The MDB Interface
must be programmed into the validator via the Configuration Cards (See Appendix D –
Configuration Cards) or via the ITL BNV Currency Manager Program.
Note:
•
Please refer to the Multi-Drop Bus specification for the suggested current drive circuits
available.
•
The BV20 supports the MDB Protocol version 1, level 1.
•
For detailed information and full protocol specification refer to www.vending.org
•
MDB address: - 0x30
MDB defines a serial bus interface used in electrically controlled vending machines (see
figure 6). This is a 9600 Baud Master-Slave system where the BV20 banknote validator is
a slave to a master controller. A master has the capability of communicating with 32
peripherals or slaves. The master is defined as the Vending Machine Controller (VMC).
Figure 6 – MDB Opto Isolated Input / Output circuits BV20 MDB Slave
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