Millenium II

1
Millenium II Crouzet Logic Software
Application Examples
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The different controllers
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The Functions

• Input functions
• Function blocks
• Dedicated function blocks
• Logic functions
• Output functions
• Applications Examples

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Digital input
Illuminated pushbutton
Contact
Selector switch
Limit switch
Pushbutton
Proximity sensor
Normally open relay
Presence detector
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Analogue Input This type of input can take an
input voltage of 0 to 10 V corresponding to a
value of 0 to 255.
Numeric Analogue filtered Inputs These types
of input can be used to suppress interference.
Numeric Input With an XT20 it is possible to
communicate a counter value to the extension.
Constant Inputs Both analogue and digital
constants.
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This is an internal clock with a period of one
second.
Buttons you can use the buttons on the front
panel of the Millenium A, B, ESC, OK, and - in
your application.
Daylight saving For summer time
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The Boolean function takes four inputs. The
output reacts according to the truth table
described in the parameters.
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Rocker switch generating a pulse on S or R will
Set or Reset the output. The priority defines
the output state when both inputs are at 1.
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Time delay This is used to apply an ON delay,
an OFF delay, or both delays to the output signal
in relation to the input signal.
Input
Function A
Function C
Function AC
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Preset counter This function is used to count
up to a defined value. Once this value has been
reached, the output changes to 1 until reset if
the fixed output is selected, or for a certain
period if the pulse output is selected.
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Zone comparison Used for applications using
analogue data.
Input
Run in the zone
Output
Stop in the zone
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BW timer This generates a cycle duration pulse
on a rising or falling edge or on both edges of
an input, according to the setting chosen in the
parameters.
input
ouput
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Hour meter This function measures the duration
of the input state at 1. After a preset
duration, the output changes state. This block
can, for example, be used as an alert on a
machine for maintenance purposes.
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Pulse This is used to generate pulses on a
rising edge of the input.
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Monostable This block is used to generate 1
pulse on a rising edge of the input.
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Schmitt trigger The output changes state if the
input is lower than the minimum value, and the
output changes state again if the input is higher
than the maximum value. If the input is between
the two, the output remains unchanged. This
function is used to locate a high threshold and
low threshold in relation to an analogue
variable..
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Comparison of 2 values This block is used to
compare two analogue values using the , gt,
lt,?,?,? operators. The digital output is
activated if the comparison is true.
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Gain Function which allows the use of a scale
factor and is applicable to all analogue data.
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Display on the LCD This block is used to
display text or an integer on the front panel LCD
display. For example, you can display a decimal
derived from an integer.
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24-hour, 7-day and 365-day timer switch This
function is used to activate or deactivate the
output at a precise moment in the day, week or
year.
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Multiplexing This function multiplexes the
integers. It is used to route on the output
either the value of the CHANNEL A input when the
CONTROL input is set to OFF or the value of the
CHANNEL B input when the CONTROL input is set to
ON.
Bistable The principle of this block is very
well known, since it involves an impulse relay.
Essentially a flip-flop, the initial impulse will
set the output to 1, and the ensuing pulse will
reset the output to 0.
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Cam timer If the FORWARD input changes from OFF
to ON, a group of 8 integral cam wheels will move
forward one step. The function presents ON or OFF
values (parameter inputs) for the number of the
step indicated on the POSITION output (0 to 49)
on the 8 outputs (OUTPUT 1 to OUTPUT 8).
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Pumps management This function is used to set
to ON a maximum of four digital outputs which can
be activated (OUTPUT 1 ... OUTPUT 4). In
addition, the outputs set to ON are selected so
that in the event of prolonged operation, each
output will have been set to ON the same number
of times.
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Up / Down counter Counts values up and down,
setting the output ON when the preset value is
reached. The output goes back OFF if the value on
the down-count input causes the counter value to
fall under the preset value.
Archive This function is used to record and
keep track of a special event ( alarm, counter
value, time, over heating).
Multiplication division Addition
subtraction Used to multiply simple values but
also counter values
Modif time prog It is a user friendly, front
panel configuration for time switch display.
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Graphcet Functions SFC functions are similar to
Grafcet language. The principle is simple, since
it involves sequential programming, with steps
succeeding one another surrounded by transitions.
When a step is active, wait for the next
transition to become active in order to go to the
next step.
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Initial Step and Resettable initial step This
function can be used to set up an operating phase
or step for a PLC or a device. This
reinitialisation, which has priority over all the
input values of an independent SFC chart, forces
a status token to its own state and all other
functions to their initial states

• The non-connected TRANSITION is maintained in
  the OFF state transition blocked
• The non-connected STEP INPUT 1 or STEP INPUT 2
  is maintained with no token present in the step
  input.
• The non-connected REINITIALISATION is
  maintained in the OFF state The associated
  function cannot reinitialise the independent SFC
  chart with which it is associated.

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A OR convergence is used to link an identical
operating phase after one or other operating
phases (simultaneous or not).
Operating in progress Step1 of B01 active.
(stable state)
End of operating phase 1 transition B01 active
(transient state)
Operating phase 3 in progress Step B03
active (stable state)
Active step
Status token circulation
Active step
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The AND convergence function is used to link a
single operating phase after simultaneous
operating phases.
Operating phase 1 2 in progress Step 1 2 of
B01 are active simultaneously (stable state)
End of operating phase 1 2 Transition B01
active (transient state)(transient state)
Operating phase 3 in progress Step B02
(stable state) (stable state)
Active step
Active step
Active step
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OR Divergence is used to link one or two
operating phases after an operating phase.
Operating phase 1 in progress Step B01 active
(stable state)
End of operating phase 1. Transition 2 of B01
active (transient state)
Operating phase 3 in progress Step B00 active
(stable state)
Active Step
Active step
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AND Divergence to is used to represent and
control simultaneous operating phases.
Operating phase 1 in progress Step B01 active
(stable state)
End of operating phase 1. Transition B01
active (transient state)
Operating phase 2 3 in progress simultaneously
Step B00 B04active (stable state)
Active step
Active step
Active step
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This function logically ANDs the connected
digital input signals. If at least one INPUT is
set to OFF, the OUTPUT is set to OFF. If all the
connected INPUTS are set to ON, the OUTPUT is set
to ON.
This function logically ORs the connected digital
input signals. If at least one INPUT is set to
ON, the OUTPUT is set to ON. If all the connected
INPUTS are set to OFF, the OUTPUT is set to OFF.
This function logically NEGATIVELY ANDs the
connected digital input signals. If at least one
INPUT is set to OFF, the OUTPUT is set to ON. If
all the connected INPUTS are set to ON, the
OUTPUT is set to OFF.
This function logically NEGATIVELY ORs the
connected digital input signals. If at least one
INPUT is set to ON, the OUTPUT is set to OFF. If
all the connected INPUTS are set to OFF, the
OUTPUT is set to ON.
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This function exclusively logically ORs the
connected digital input signals. If both INPUTS
are at the same level (both set to ON or both set
to OFF), the OUTPUT is set to OFF. If one of the
inputs is set to ON and the other is set to OFF,
the output is set to ON.
This function logically NOTs the connected
digital input signals. If the INPUT signal is
set to OFF, the OUTPUT is set to ON. If the INPUT
signal is set to ON, the OUTPUT is set to OFF.
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Digital Outputs
Normally open relay
Audible signal
Fan
Indicator
Lamp
Green light
Solid State Relay
Red light
Orange light
Valve
Cylinder
Heater
Resistor
Motor
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Pulse Width Modification Output The input
(internal controller input) of the PWM output is
an integer value. The value of an integer at the
output of an FBD function block can be between
-32767 and 32767. The PWM only takes into
account values between 0 and 255 this means that
all input values less than 0 are reset to 0 and
that all values greater than 255 are reset to
255. This value between 0 and 255 is used in the
PWM to vary the cyclic ratio of a digital
clock. For example with the value 0, the output
signal is always at 0 with the value 127, the
output signal is at 0 for half the time and at 1
for half the time the filtered analog output is
produced at half the supply voltage of the output
unit finally, with the value 255, the output
signal is always at 1 and the analog output takes
the maximum value of the supply voltage of the
unit.
-32767 0
127
200
255 32767
Input
1
1
1
0
Output
50
79
100
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Num Out
This function is used to output a 16-bit integer
(-32768, 32767) from certain connected
extensions. This input can only be placed on
INTEGER type output units of the extensions.
Back Light
This output symbol cannot be placed on the output
units of the controller. Backlighting of the LCD
screen on the front panel of the controller. The
screen is not lit when the input is in the OFF
state. In simulation and monitoring modes, when
the input is set to ON, the following symbol
appears. Input ON the LCD screen is back-lit
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Timer A-C Three timing Functions in one block.
Delay on Make Function A Upon
receiving an input signal timing begins. After
the set time has elapsed the output is
activated. The output remains active
until removal of the input signal.
Delay on Break Function C Upon
receiving the input signal the output
is activated. Timing begins with removal of
the input signal. After the set time has
elapsed the output is de-activated
Combination Delay on Make / Delay on Break
Function AC Upon receiving the input signal the
delay on make time begins. After the set time
has elapsed the output is activated. Upon
removal of the input signal, the delay on break
time begins. After the set time has elapsed the
output is de-activated. Delay on and delay off
times are independently adjustable.
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Timer BH
Single Shot Function B Upon
receiving an input signal the output is activated
and timing begins. After the set time has
elapsed the output is de-activated. The input
signal has no effect on the timer until the
output is de-activated
Interval Function H Upon
receiving an input signal the output is activated
and timing begins. After the set time has
elapsed the output is de-activated.If the input
signal is removed before time-out, timing will
reset and the output is de-activated.
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Repeat Cycle Timer, Counter, Set Reset
In this example, a momentary push button is
pressed to start the cycle. The Timer Li
function Block is set to flash the light bulb on
for 1second and off for 1 second. The Timer Li
function block can also be programmed to repeat
this cycle a set number of times. In this
example the timer has been programmed to repeat
the cycle 10 times. The Set Reset Function Block
is used to latch the momentary push button. The
Preset Counter is used to count the number of
flashes and reset the Set Reset.
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Temperature Sensing
In this example, a Crouzet 89750150 temperature
sensor is wired to a Millenium analog input. The
Gain Function Block scales the 8 bit analog to
digital converter to degrees Fahrenheit.
This particular sensor measures 14 to 104
degrees. The value of the gain is fed into the
compare. The Num Function Block is used to feed a
set value into the Compare Function. In this
example, the value of num is set to 80. The
compare function block is programmed to give an
output if the gain value is greater than the num
block value. If the temperature goes above 80
degrees the Millenium will turn on a fan.
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Boolean - Complex Logic in a single Function

In this example, both of these diagrams perform
the same function. The Boolean function block is
programmed via a truth table. You can set the
block to activate its output on any combination
of the 4 inputs.
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Multiple Displays
In this example, The A key on the front face of
the Millenium is used to page through five
separate displays. At start-up the current count
of the counter is 0, the first compare is set to
be active when the counter is at 0. When the A
button is pressed the counter increments. The
value of the counter is now 1 and the second
compare is programmed to be active for this
counter value. The counters set point is
programmed for the number of displays in the
sequence (5 in this example). The counter is also
programmed to be in repeat mode, so the counter
resets at 5 and the first display is then active
again.
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Addition/Subtraction Function Block
In this example, The Addition/Subtraction block
is used to add(top example) or subtract(bottom
example) two analog values. Input 6 and 7 are
programmed to be analog inputs. The two gain
function blocks scale the number to a meaningful
value. The two gain blocks feed the add or
subtract inputs on the add/subtract function
block. The result of the math is displayed on
the LCD and is also fed to the compare. The
counter preset value is used to feed the compare
a user adjustable value. The second display
allows modification of the counter preset.
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Rate Meter / Tachometer
In this example, a proximity sensor is used to
determine rpm of a rotating object. Rpm is
displayed on the LCD, and compared against a
fixed value. The prox is wired to a Boolean
block. The Boolean block only gives an output
if the prox is on and the Timer B06 is NOT on.
The counter counts the pulses of the prox for one
second. The value of the counter is then
multiplied to determine rpm. The archive block
is used to store that value and display it on the
LCD. The archive block is updated once every 1.2
seconds. The Time B06 controls the operation.
The timer has 1 second off time and a .2 second
on time. The off time is used to count the
pulses. The on time triggers the archive to latch
in the rpm, and start the delay timer. The timer
delays .2 seconds then resets the counter for
the next sample. The compare function turns on
an output when a certain rpm is reached, this
value is programmed into the NUM block B11