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 21/42
There are some special fields at the bottom of the window, below the heading of
“Scaling.” These adjustable parameters have the following meaning:
• Scaling Factor
This value is used in vending machines that communicate with the coin
selector over the serial MDB protocol. The vending machine may read
these values during a status request.
• Decimals
A decimal point location is likewise transferred to the vending machine
during a status request as part of the MDB protocol. This value tells the
vending machine how many digits to use after the decimal point as part of
the coin value.
• Set Value
A set value represents one impulse when inventory pulses are generated.
For those coin selectors that calculate prices and the price is set up via the
binary price switches, the set value is also used as the multiplication
factor.
• Test button
This button is used to let wheasy 3 test whether it is possible to create 8 bit
coin values for the MDB status request with the given scaling factor and
decimal location.
• Proposal button
wheasy 3 attempts to find a scaling factor and a decimal point position that
works for the status request. It is not possible to find such a value if the
largest coin value is more than 255 times greater than the smallest coin
value. In this case an error message is shown.
2.6 Slave Channels
The generation v5 selectors also have 16 slave channels (Channels 17 to 32)
available in addition to the so-called 16 master channels. The slave channels can
have their own settings for the coin parameters and blocking switches. The slave
channels may be assigned arbitrarily to any master channels. It is even possible to
assign multiple slave channels (up to 16) to a master channel. The slave channel
assignment can be carried out in wheasy 3 with the “Edit” pull down and then
selecting “Slave channel.” This is discussed in the wheasy 3 manual.
The slave channels share the following attributes with the associated master
channel:
• Output channel. This means that the slave channel will always signal the same
output line as the associated master channel.
• Coin Value
• Sorting shaft
An exception is possible with the EMP 8x0.13 v5 with Multi drop Bus interface
under certain circumstances. Here it is possible for the slave channel number to be
sent individually.