alpha tiny giants lpha lpha controller. alpha product overview programming overview system sketch...
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Alpha
Product Overview
RETURN
Basic hardware features
Size / Installation
Input / Outputs (I/O) devices
Alpha
Basic hardware featuresInputs
Outputs
Programming from the front
of the Alpha (with 8 keys &LCD-display)
Power supply
Interface for PC-Programming
Interface for memorycassette
Programmable operator interface
(LCD-display)
Direct mounting
Alpha
Inputs OutputsModel Inputs Outputs
6 I/O Alpha 4 210 I/O Alpha 6 420 I/O Alpha 12 8
Basic hardware featuresOptions - model sizes:
Options - power supply model:– 24V DC– 100 to 240V AC (50/60Hz)
Options - expandability:– Network ‘slave’ cards ex. AS-I (20 I/O Alpha only)
Alpha
Input / Outputs (I/O) devicesOptions - Inputs:
– Models with 24V DC power supply• 24V DC inputs (digital)• Up to 8 digital inputs can be re-designated
through system software as being analogue inputs
– Models with 100 to 240V AC power supply• 100 - 240V AC inputs (digital)
Options - Outputs:– Relay models - 8A per point at 240V AC / 24V DC– Transistor models - 1A per point at 24V DC
Alpha
Model Width Height Depth6 I/O Alpha10 I/O Alpha20 I/O Alpha 124.6 mm
55 mm90 mm71.2mm
Size / Installation
Compact size:– (DC powered and AC powered units
are the same size)
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Size / Installation
Options - installation:– Directly on to DIN-rail
– Directly on to the surface (by screws/bolts through integrally moulded location holes)
Alpha
Basic programming featuresFunction (block) based programmingProgramming directly from the front of the Alpha
– Graphic LCD-Display
– 8 keys
– Menu driven operation
– System operation available in 5 languages(English, French, Spanish, German, Italian)
– All information of one function block is displayed simultaneously
Option - Windows based software (95, 98, NT)
Alpha
Programming directly from the front
Monitoring
LCD-Display & 8 keys
Menu driven operation
All function data displayed simultaneously
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Digital inputs
Digital input
Analog input
Analog values / special outputs / display outputs
Digital output
Programming basicsProgramming is function (block) based Each function is easily selectedEach function (block) carries out one task which has a number inputs conditions and resultant outputsUp to 64 function scan be linked together
(or up to 1500 bytes - which ever is exceeded first)Each function (block) can be used as many times as required
Alpha
Software - ALVLSThe software is called AL-PCS/WIN
(ALVLS - Alpha Visual Logic System)ALVLS works under 95, 98 and NTALVLS is a graphic based software which is available in 5 different system languages
(English, French, Spanish, German, Italian) Programming is possible with no previous experience
– There is a system Wizard (to help create basic programs)
– There are on line guides (to help use software functions)
Programming is based on selecting graphic icons which represent functions, placing them in a work area and connecting them up with a line.
– There is an extensive help system (to provide general support)
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Software - ALVLSIcons can be personalised, I.e. users can add or customise their ownAll programs can be simulated:
– On-line simulation and monitoring requires the Alpha unit to be connected to the PC
– Off-line simulation requires no Alpha unit as everything is self contained in the ALVLS software
ALVLS programs can be completely documented with comments for functions and added generic commentsALVLS has a “system sketch” mode which allows users to create their own PC based operator interface
Alpha
Buttons
Internal Bits
Scroll selection
Inputs
Input menu selection
Software Input signalsAutomatic identification of digital or analogue inputs depending upon the selected input image
Alpha
Example,AnalogInput
Analogue or special signal is represented by green dot
Analogue signal is shown with a thicker connection line
Software Input signals
Analogue signals– Up to 8 inputs can be defined as analogue– Analogue input is 0 to 10V DC– Analogue resolution is 8 bits (0 to 255)– Analogue inputs are only available on
24V DC powered units
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Output types
Scroll selection
Output menu selection
Software Output signals
Graphical symbols and images make programs easier to understand
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Software graphical program simulation
Programs written with ALVLS software can be simulated to ensure correct operation. Input/Outputs status is toggled with line and function block status.
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AND (And-Link)
OR (Or-Link)
NOT (Negation)
NAND (And-Link negated)
NOR (Or-Link negated )
XOR (either/or)
Instructions - Logic signals
Simple boolean commands
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Word or symbol logical operators
Simulation
Easy to understand ‘sentence’ construction
Instructions - Logic signalsComplex boolean instructions can be created using the BOOLEAN function
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Instructions - Status controlSelf retaining command SET-RESET:
– SET (set), RESET (set back)– Setting of priority
Status alternate (flip) ALT:– It function toggles the output whenever the input
signal changes from OFF to ON. When clear input is ON, output becomes OFF irrespective of input status.
Time-function ONE-SHOT: – Time range 0.1 s–6553.5 s– This function is used to generate
a single pulse with a specific duration
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Instructions - Status controlTime function DELAY:
– Time range 0.1 s–6553.5 s– Switch on-delay (on-delay)– Switch off-delay (off-delay)– Switch on- and off-delay timer,
duration's can be set separately
Pulse generator function FLICKER: – Time range 0.1 s–6553.5 s– Pulse generator asymmetric
(T-on, T-off individually adjustable)– Number of pulses adjustable or continuously– Total time of pulses adjustable or continuously
Time function PULSE: – Generates a pulse for one cycle when the
following are selected:• leading edge of one input• trailing edge of one input• leading and trailing edge of one input
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Instructions - Event monitoringMaintenance function HOUR-METER:
– Next maintenance time is set - when reached an output is activated
– Counting of working hours and minutes up to 32767 hrs and 59 min (1365 days, 3.7 years)
– Counter value kept for 20 days after power is removed– Can be cascaded to increase time base
Counter function COUNTER: – Counting range up to 32767– Output set when Count value reached
– Count can be reset by input at any time
Counter function UP/DOWN-COUNTER: – Counting range: -32767–+32767
– Up/Down inputs are separate– Output set when Count value reached– Count set value can be manual setting, analogue
input or fixed value triggered by digital input– Count can be reset by input at any time
Alpha
Example : Tuesday, 08.02.199910h30
Example : Tuesday, 08.02.199910h30
08.02.199902.08.19991999.02.08
08.02.199902.08.19991999.02.08
Instructions - Event monitoringReal time clock function CLOCK:
– Data available from the real time clock: hours, minutes, day of the week, day of the month,month, year
– 3 Formats to display the date: dd.mm.yyyy mm.dd.yyyy yyyy.mm.dd
– Direct adjustment of the clock on the unit– Automatic adjustment of day and week– Automatic summer time/daylight saving time
(US, UK, EU presets plus user configured option)– Max. 350 time events
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Instructions - Value processingAnalogue value processing GAIN:
– Adjust Gain/Offset of read analogue values – Apply scaling to analogue input values
Compare-function with words COMPARE: – Comparison of 2 values
(could be analogue, counter or timer values)– Types of comparison: =, <>, >, >=, <, <=
Schmitt-Trigger SCHMITT– Comparison of a value to 2 set points
triggering different actions
Zone Compare (range on/off) ZON-CMP– Comparison of a value to a range
(could be analogue, counter or timer values)– Types of comparison: =, <>, >, >=, <, <=
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Instruction - User Interaction
HMI-Function DISPLAY: – LCD-Display on Alpha: 4 lines x 10 characters– The contents of display can be freely programmed
with text and/or values from programmed functions– Displayed values can be easily changed/edited using
the keys on the front face of the unit
Alpha
Instruction - User InteractionTo change a value through the HMI/Display option:
– Press key:– First value is signaling– +1 at value, key– -1 at value, key– Confirming of change, key
– Should the display consist of several values, selection of values with or with
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System sketchALVLS software, “Monitoring in System Sketch”:
– In the ALVLS software it is possible to carry outmonitoring and/or simulation
– Within the System sketch area, users can create avisual representation of their application(effectively creating a low function SCADA system)
– Images can be imported (BMPs) and links to standard Windows programs can be made
– User’s can copy any of the inputs/outputs or functionsused in the Alpha program to the System sketch area
– By placing the devices in the System sketch and then activating either the simulation or the monitor mode’s - the users program can be controlled directly
E.g………………..
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Ancillary ItemsThe ALVLS software communicates to the Alpha unit through the computers serial port. This is connected to the Alpha unit with the AL-232CAB cable as shown below.
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Ancillary ItemsMemory cassettes:
– By insertion of an EEPROM-cassette a new Alpha program can be directly inserted without aprogramming tool
Alpha has been designed to suit users needs:– Industry (IEC 1131.1, 2)
– House- and building technique (EN 60730)
– CE EMC
– CE low voltage
– UL/cUL.
Alpha
SUMMARYMitsubishi Electric, world leader in the sector of small PLCs launches something new on the market:
The Alpha-Controller
Smaller and cheaper than a PLC, but with a lot of perfomance and new possibilities: A totally innovative way of programming via the Alpha software A big range of integrated functions
– Display-Function
– Outputs for up to 8 A
– Real-time clock function
– Standard analog inputs and
corresponding functions.
Alpha, Leader of the Function Controller Generation