10015UK 01 -2004
Technical information:
ES-525 Validator
4
Ô
There are two protocols incorporated.
-
Binary:
The
validator
uses a combination of output lines to identify each coin.
-
Dedicated:
The
validator
uses one output line for each coin.
In this mode, the option of pulses can also be used. The same line can be used by
giving a different number of pulses to identify different coins.
Example
:
if an output line corresponds to a value
“x”
it gives 1 pulse, when a
different coin of double the value
“2x”
is inserted it gives 2 pulses, or 3 pulses if the
vale is
“3x”
and so on.
Ô
You can optionally work using Azkoyen protocol, which works the following way:
- With
the
validator
at rest, without introducing a coin, the signals are:
x
Output lines: at rest.
x
Inhibition line: coins inhibited. The machine should control this line and maintain the
validator
in inhibited state,
high
o
low
depending on how it is programmed. The line
that is used for this protocol to define which of the 8 inhibition lines of connector JP5
is programmed at the factory.
x
Once a coin is inserted, the
validator
looks at its characteristics and compares it to the
previously programmed coin tables. The result of the comparison can have two
values, valid coin (coin programmed), or coin not valid (coin not programmed). If the
coin is not valid, the
validator
rejects the coin and does not give a signal. If the coin is
valid, the coin acceptance process is initiated (figure 1).
x
Once the
validator
has recognised a valid coin, it sends a code through the output
lines informing the machine which coin it has. The duration of this pulse is between 1
millisecond minimum to 10 milliseconds maximum.
x
At this instant and within the 10 milliseconds of the pulse the machine confirms to the
validator
that it wants to admit the coin, putting the inhibition line to the selected level
for at least 3 milliseconds. If the machine does not modify the inhibition line or does
not do it within the time limit, the
validator
will automatically reject the coin.
Summary of Contents for ES-525
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