Technical data

wh Münzprüfer Dietmar Trenner GmbH, Germany Technical Manual EMP 8x0.00/04/13 v5
Version 1.51
EMP8x0.00/04/13 v5 subject to technical modification page 33/42
Command Code Data to the Coin Selector
Channel assignment 7Eh 9 Bytes Y1 to Y9
Y1 Number of the main coin box
Y2 – Y9 Assignment of the channel/shaft, one nibble each
Y2 Y3 Channel 1/2 2/3
! The given default coin sorting sequence is reverted to after a reset.
Command Code Modifier Data from the Coin Selector
Identify 7Fh 00h 33 Bytes Z1 to Z33
Z0 - Z3 WHM
Z4 - Z15 number of machine
Z16- Z27 number of model / bar code
Z28- Z29 software version packed BCD-code
Z30- Z33 future options
Command Code Modifier Data from the Coin Selector
Request 7Fh 01h 13 Bytes Z1 to Z13
Z1 – Z2 Coin Release, 1 Bit per type, 1 = Unblock coin
Z3 – Z4 Coin routed to main coin box, 1 Bit per type, 1 = Main coin box
Z5 Main coin box sorting shaft
Z6 – Z13 Sorting shaft number of each type of coin; one nibble per type,
beginning with type 1 in the upper nibble Z6
This request is used to establish the actual blocking and sorting of the 16 master
channels.
Command Code Modifier Data from the Coin Selector
Extended Request 7Fh 21h 15 Bytes Z1 to Z15
Z1 – Z4 Coin Release, 1 Bit per type, 1 = Unblock coin
Z5 – Z6 Coin routed to main coin box, 1 Bit per type, 1 = Main coin box
Z7 Main coin box sorting shaft
Z8 – Z15 Sorting shaft number of each type of coin; one nibble per type,
beginning with type 1 in the upper nibble Z8
The extended request is used to establish the actual coin release and sorting of all
32 channels. The sorting of the master and slave channels are always the same.
3.3.4 Multi Drop Bus and Battery Operation
With the EMP 800 v5 it is now possible for the coin selector to be battery operated,
even when using the MDB protocol.
Various improvements and changes where made in order to make it easier to
implement this protocol in a battery operated vending environment.
3.3.4.1 Coin Type Default
Prior to the new v5, it has proved difficult for the machine controller to initialize the
coin selector once it has turned itself on because it has detected a coin. That is, it
was difficult to send the coin type command in time so that the inserted coin could
still be accepted.
In order to make things easier, the coin selector now has the facility to initialize
itself when in MDB mode. In wheasy 3, select „Configuration“, then „B-values“, and
select the „Mode“ tab. Check “Coin type default”. The coin selector will initialize
the Coin type command from its own EEPROM after power up and therefore is
immediately ready to accept coins. In this mode no “Reset” message is sent after