Domat IDE
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  • Basic description of the Domat IDE
  • Start the IDE
  • Process station, or controller (PLC)
  • Project
  • HMI editor
  • Software
  • Domat devices
Contact
  • Čeština
  • English
Home
  • Basic description of the Domat IDE
  • Start the IDE
  • Process station, or controller (PLC)
  • Project
  • HMI editor
  • Software
  • Domat devices
Contact
  • Čeština
  • English
  • Basic description of the Domat IDE
    • Frequently asked questions
    • Programming options
    • Communication options
    • Hardware capabilities
    • User prerequisities
    • Definitions of terms necessary for work in Merbon IDE
    • General proceedings to program PLCs
  • Start the IDE
    • NewSolution
    • New Solution in Simple mode
    • Hot keys
    • Mouse control
    • Settings
    • Searching variables - Quick Find
    • Project archiving
  • Process station, or controller (PLC)
    • PLC attachment (and platform type settings)
    • Controller runtime update
    • Update from HW device
    • Uploading of program to a PLC
    • Online changes
    • Controller properties
    • Controller configuration
    • PLC Reboot
    • Time setup
    • Firewall settings
    • Dynamic Changes
    • Connection over a Proxy server
    • Alarms log
    • Profiles
    • PLC task definition
    • Communication channel settings
    • Definition of HW variables for a communication channel
    • Automatic assignment of a Domat device
    • Export of devices
    • Import of devices
    • Coupling IOs
    • Global variables mapping to hardware I/O
    • Access to variables of another PLC
    • SSL Communication
    • Modbus server setup
    • BACnet server setup
    • SSCP serial server settings
    • OPC server
    • Variable transformation, configuration of analogue inputs
    • History, saving data in a database
    • Alarm overview
    • Debugging
    • Licensing PLC
    • Break points
    • Break points window
    • Exceptions
    • Manual mode
    • Properties of hardware platforms
    • System status
    • PLC resource usage
    • Variables backup
    • Modbus Configurator
    • Comparison of local and remote project
    • Syslog Protocol
    • Bulk write to variables
  • Communication protocols description

    • BACnet protocol driver
    • Daikin iTC (.NET) protocol driver
    • Hauser (.NET) protocol driver
    • IEC 60870-5-104 protocol driver
    • IEC 62056-21 protocol driver
    • K-Bus protocol driver
    • Modbus protocol driver
    • M-bus protocol driver
    • SoftPLC Link protocol driver
    • SSCP protocol driver
    • Text Parser (.NET) protocol driver
  • Project
    • New project
    • Variable definition
    • Autogen - Automatic mapping of variables
    • FUPLA editor
    • ST editor
    • Watch
    • Variable browser
    • Charts
    • Port Monitor
    • Results
    • Output
  • HMI editor
    • Description of HMI editor
    • Binary function
    • Work in Simple mode
    • Work in Full mode
    • User policy
    • HMI text editor objects
    • Definition of LCD menu for PLC
    • Terminal text menu definition
    • HMI graphical objects
    • Terminal graphic menu definition
    • Creating styles
    • Web server
    • Service web
    • Controller as external webserver
    • Domat Visual
  • Software
    • New Solution
    • New Solution in Simple mode
    • Programming languages
    • Access to inputs/outputs of inner block
    • Initial values
    • Common elements

      • Identifiers
      • Keywords
      • White space
      • Comments
      • Literals
      • Variables
      • Constants
    • Data types

      • Elementary data types (BOOL, INT, REAL, STRING, etc.)
      • Generic data types
      • Derived (user) data types
      • Implicit conversions for elementary types
      • Inference rules for overloaded functions selection
    • Object oriented programming (OOP)
      • Pointer data type
      • Reference data type
      • Namespace
    • Program organisation unit (POU)
      • Functions
      • Standard functions
      • Function blocks
      • Standard function blocks
      • Programs
    • ST language (Structured Text)

      • ST editor
      • ST language commands
      • ST language operators
      • ST drivers
    • FUPLA language (FUnction PLAn)

      • FUPLA editor
      • FUPLA wires
      • Visibility of inputs and outputs at a function block
    • Libraries

      • Creating a new library
      • Creating user library
      • Library prototypes
      • Basic Analogue Boxes

        • Composition / Decomposition

          • Bit Composition (BD18)
          • Bit Composition 8bit (BD18)
          • Bit Decomposition (BD19)
          • Bit Decomposition 8bit (BD19)
          • Int Composition (BD55)
          • Int Decomposition (BD54)
        • Controllers

          • Direct Acting (cooling)

            • On-Off Control - Cooling (B30)
            • P-Controller - Cooling (B32)
            • PI-Controller - Cooling (B34)
            • PID-Controller - Cooling (B36)
          • Reverse Acting (heating)

            • On-Off Control - Heating (B31)
            • P-Controller - Heating (B33)
            • PI-Controller - Heating (B35)
            • PID-Controller - Heating (B37)
          • Helpers

            • Helper: Multi In Bool 8
            • Helper: Multi In Lint
            • Helper: Multi In Real
            • Helper: Multi Out Bool
            • Helper: Multi Out Bool 8
            • Helper: Multi Out Lint
            • Helper: Multi Out Real
        • Mathematics

          • ABS
          • ADD
          • AVG
          • CEIL
          • DIV
          • FLOOR
          • MAX
          • MIN
          • MOD
          • MUL
          • Smart Average (B48)
          • SUB
          • TRUNC
          • TRUNC_TO_LINT
          • Compare Functions

            • EQ
            • GE
            • GT
            • LE
            • LT
            • NE
          • Logarithm / Exponential Functions

            • EXP
            • EXP10
            • EXP2
            • EXPT
            • LN
            • LOG
            • SQRT
          • Specials

            • ISINFINITY
            • ISNAN
            • ISNEGATIVEINFINITY
            • ISPOSITIVEINFINITY
          • Time

            • ADD_DT_TIME
            • ADD_LDT_LTIME
            • ADD_TOD_TIME
            • ADD_LTOD_LTIME
            • CONCAT_DATE_TOD
            • DIVTIME
            • MULTIME
            • SUB_DATE_DATE
            • SUB_DT_DT
            • SUB_DT_TIME
            • SUB_TOD_TIME
            • SUB_TOD_TOD
          • Trigonometric Functions

            • ACOS
            • ACOSH
            • ASIN
            • ASINH
            • ATAN
            • ATANH
            • COS
            • COSH
            • SIN
            • SINH
            • TAN
            • TANH
        • Sources

          • B3 Sine Wave Generator
          • B4 Saw Wave Generator
        • Specials

          • Analogue Incremental Counter (B107)
          • Analogue Memory (B105)
          • Analogue Shift Register (B110)
          • Integer Memory (B106)
          • Integer Shift Register (B111)
          • Integrator (B113)
          • RAND
        • Switches

          • Analogue Demultiplexer (B10)
          • Integer Demultiplexer (B12)
          • MUX
          • SEL
        • Time Blocks

          • GETDELTATIME
          • GETDELTATIME4
          • GETDSTOFFSET
          • GETEVALTIME
          • GETEVALTIME4
          • GETLOCALTIME
          • GETTIMEZONEOFFSET
          • GETUTCTIME
          • PLC Time (B99)
          • Time+Date to Total Seconds (B97)
          • Total Seconds to Time+Date (B98)
          • Conversions

            • COMPOSEDATETIME
            • CONVERTTOLOCALTIME
            • CONVERTTOUTCTIME
            • DATETOTALDAYS
            • DATETOTALHOURS
            • DATETOTALMILLISECONDS
            • DATETOTALMINUTES
            • DATETOTALSECONDS
            • DECOMPOSEDATE
            • DECOMPOSETIME
            • Time Conversion (B100)
            • TIMETOTALDAYS
            • TIMETOTALHOURS
            • TIMETOTALMILLISECONDS
            • TIMETOTALMINUTES
            • TIMETOTALSECONDS
        • Time Dependent

          • Filter (B86)
          • Pulse Width Modulation (B87)
          • Slew Rate Limit (B84)
          • Variable Slew Rate Limit (B85)
        • Transfer Function

          • LIMIT
          • Limits (B82)
          • Linear Interpolation (B83)
          • Two-Point Function (B80)
          • Four-Point Function (B81)
        • Type Casts

          • BCD_TO_UDINT
          • BCD_TO_UINT
          • BCD_TO_ULINT
          • BCD_TO_USINT
          • DT_TO_DATE
          • DATE_TO_LDATE
          • DATE_TO_DT
          • DATE_TO_LDT
          • DATE_TO_LTOD
          • DATE_TO_TOD
          • DT_TO_LDT
          • DT_TO_LTOD
          • DT_TO_TOD
          • LDATE_TO_DATE
          • LDATE_TO_DT
          • LDT_TO_DATE
          • LDT_TO_DT
          • LDT_TO_LDATE
          • LDT_TO_LTOD
          • LTIME_TO_TIME
          • LTOD_TO_DT
          • LTOD_TO_LDT
          • LTOD_TO_TOD
          • TO_BCD_BOOL
          • TIME_TO_LTIME
          • TO_BCD_BYTE
          • TO_BCD_DWORD
          • TO_BCD_LWORD
          • TO_BCD_WORD
          • TO_BYTE
          • TO_DINT
          • TO_DWORD
          • TO_INT
          • TO_LINT
          • TO_LREAL
          • TO_LWORD
          • TO_REAL
          • TO_SINT
          • TO_STRING
          • TO_UDINT
          • TO_ULINT
          • TO_USINT
          • TO_WORD
          • TOD_TO_LTOD
      • Basic Digital Boxes

        • Counters

          • Pulse Counter (BD30)
          • Down

            • Counter DINT (IEC 61131)
            • Counter INT (IEC 61131)
            • Counter LINT (IEC 61131)
            • Counter UDINT (IEC 61131)
            • Counter ULINT (IEC 61131)
          • Up

            • Counter DINT (IEC 61131)
            • Counter INT (IEC 61131)
            • Counter LINT (IEC 61131)
            • Counter UDINT (IEC 61131)
            • Counter ULINT (IEC 61131)
          • UpDown

            • Counter DINT (IEC 61131)
            • Counter INT (IEC 61131)
            • Counter LINT (IEC 61131)
            • Counter UDINT (IEC 61131)
            • Counter ULINT (IEC 61131)
        • Logical Operations

          • AND
          • NEG
          • NOT
          • OR
          • ROL
          • ROR
          • SHL
          • SHR
          • XOR
        • Sources

          • Pulse Generator (BD2)
        • Specials

          • Alarm Memory Ext. (BD57)
          • Boolean Memory (BD51)
          • Falling Edge Detection (IEC 61131)
          • Flip Flop (BD52)
          • Latch Flip Flop (BD53)
          • Multiple Alarm Memory (BD50)
          • Rising Edge Detection (IEC 61131)
          • RS FlipFlop (IEC61131)
          • Single Alarm Memory (BD49)
          • Single Alarm Memory w. Delay (BD56)
          • SR FlipFlop (IEC61131)
          • Toggle
        • Switches

          • Digital Demultiplexer (BD11)
        • Time Dependent

          • Digital Filter (BD15)
          • Monostable FlipFlop
          • Monostable FlipFlop (Non Resetable)
          • Pulse Encoder (IEC 61131)
          • Switch-Off Delay (BD13)
          • Switch-Off Delay (IEC 61131)
          • Switch-On Delay (BD12)
          • Switch-On Delay (IEC 61131)
          • Switch-On/Off Delay (BD14)
        • Type Casts

          • TO_BOOL
      • Basic String Boxes

        • BYTES_TO_STRING
        • CONCAT
        • DELETE
        • INSERT
        • FIND
        • LEFT
        • LEN
        • LINT_TO_STRING
        • LREAL_TO_STRING
        • MID
        • REPLACE
        • RIGHT
        • STRING_TO_BYTES
        • TO_STRING
      • Communications

        • Emails

          • Send Mail
          • Send Mail Triggered
          • Send Mail Custom
        • Input / Output Functions

          • Close Port
          • Get Port Status
          • Open Port
          • Read Port
          • Write Port
        • SMS

          • Receive SMS
          • Send SMS
          • Send SMS Triggered
      • HVAC

        • Boiler Shifts

          • Bit Rotation (T14)
        • Others

          • E-max - Load shedding (T34)
          • Heat / Cool Recovery Block (T39)
          • Heating Curve (T1)
          • Min / Max Controller (T33)
          • Operating Hours (T32)
          • Power Meter (T36)
          • Pump Switch (T35)
          • Average Power Meter (T37)
        • Physics

          • Dew Point (T28)
          • Enthalpy (T29)
          • Solar Calculator (T40)
        • Time Programs

          • Bool Scheduler (T17)
          • Bool Scheduler Basic (T17)
          • Integer Scheduler (T19)
          • Integer Scheduler Basic (T19)
          • Real Scheduler (T18)
          • Real Scheduler Basic (T18)
        • Valve Controls

          • Three Point Control - Feedback (T6)
          • Three Point Control (T2)
          • Three Point P-Controller (T8)
      • System Function

        • Get Exception Error Code
        • Get Startup Flags
        • Mutex Lock
        • Mutex Unlock
        • Resume Normal Tasks
        • Set System Time
        • Stop Interface Entry Point
        • Dynamic Parameters

          • HwConfiguration

            • DateTime Settings
            • Domat DB Parameters
            • Networking
            • Proxy Parameters
            • Restart PLC
            • SSCP Parameters
            • Storage
            • Users Definition
          • Image

            • Alarm

              • GSM
              • SMTP
            • Device

              • BACnet Client Device
              • BACnet Server Device
              • Daikin iTC Device
              • Mbus Device
              • Modbus RTU Device
              • Modbus TCP Device
              • SoftPLC Link Device
              • SSCP TCP Device
            • Channel

              • Serial Channel
              • TCP/UDP Channel
  • Domat devices
    • PLC

      • mark130.2
      • mark220
      • mark220LX
      • mark320
      • mark320LX
      • mark520
      • markMX
      • markMX.2
      • markMX.3
      • markMXL
      • Windows RT
      • ICIO205.2
      • IMIO105.2
      • IMIO110.2
      • w750-8101
      • w750-8102
      • w751-9301
      • wCIO
      • wCIOcom
      • wMX
      • wMXcom
    • Operator units

      • HT102
      • HT104
      • HT200
      • HT3xx
    • Device

      • ECIO2 - Compact I/O module, Ethernet
      • EPC102 - Heating controller
      • FC010 - Communicative fan coil controller
      • FC013 - Communicative room temperature controller for heating and cooling panels and VAV damper
      • FC015 - Communicative room temperature and CO2 controller for heating and cooling panels and VAV damper
      • FC020 - Communicative fancoil controller
      • FCR010 - Communicative fan coil controller
      • FCR011 - Communicative fan coil controller, powered 230 VAC
      • FCR013 - Communicative room temperature controller for heating and cooling panels and VAV damper
      • FCR015 - Communicative room temperature and CO2 controller for heating and cooling panels and VAV damper
      • M090 - Modbus TCP / DALI converter
      • M100 - Temperature sensor
      • M200 - 4 digital outputs
      • M215 - 8 digital outputs with manual intervention
      • M300 - 8 digital (open collector) output module
      • M312, M313 - Triac output module, PWM
      • M315 - 8 SSR outputs, manual intervention
      • M320 - 16 digital outputs module
      • M325 - 16 digital outputs module, manual intervention
      • M400, M401, M410, M411 - Digital input modules
      • M420 - 16 digital inputs module
      • M430 - 32 digital inputs module
      • M500 - 8 analogue inputs module
      • M504 - Analogue input module
      • M560 - Universal analogue input module
      • M580 - String DC current measuring module
      • M610 - Analogue output module
      • M620 - Analogue 4 current loop output module
      • M710 - Pulse counter module, 4 inputs
      • MC102 - Heating controller
      • MCIO2 - Compact I/O module, Ethernet
      • MLIO - Small distributed I/O module
      • MMIO - Small compact I/O module
      • MT020 - Alarm and fault indicator
      • MTala010 - Alarm indicator
      • MW100 - RFID card interface
      • MW240, MW240-B, MW241 - Small I/O module for lights and sunblind control
      • MW501 - Analogue input module
      • MXIO - Compact I/O module
      • R060 - Converter Modbus TCP, RTU/MP-Bus
      • R065 - Converter Modbus TCP/DMX512
      • R091 - Modbus TCP/DALI convertor
      • R220 - 12 digital outputs
      • R312, R313 - Triac output module, PWM
      • R320 - 16 digital outputs module
      • R330 - 32 digital outputs module
      • R420 - 16 digital inputs module
      • R430 - 32 digital inputs module
      • R500 - Universal analogue input module
      • R560 - Universal analogue input module
      • R610 - Analogue outputs module
      • R710 - Pulse counter module, 4 inputs
      • R800 - 8 AI and 8 AO module
      • RCIO - Compact I/O module, Ethernet
      • RMIO - Small compact I/O module
      • RXIO - Compact I/O module
      • Stelix DIP200 - Motion and light sensor
      • UC102 - Communicative heating controller
      • UC120 - Communicative heating controller, output 0..10V
      • UC150 - Communicative heating controller, Ethernet
      • UC200 - Communicative heating and cooling controller
      • UC210 - Communicative heating and cooling controller
      • UC211 - Communicative heating and cooling controller
      • UC220 - Communicative heating and cooling controller, outputs 0...10V
      • UC250 - Communicative heating and cooling controller, Ethernet
      • UC300 - Communicative floor heating controller
      • UI0xx - Room operation unit
      • UI0xxBL Room operation unit with display backlight
      • UI3xx - Room operation unit
      • UI410 - Module for measuring and monitoring
      • UI415 - Solar irradiation integrator
      • UI5xx - Room operation unit, Ethernet
      • UI6xx - Room operation unit, Ethernet, PoE
      • US100 - Communicative heating controller with sunblind control
      • UX0xx - Communicative room units with sunblind control
      • UI9xx Room operation unit with CO2
      • UI9xxBL Room operation unit with CO2 and display backlight
    • Sensors

      • UT090 - Room temperature and CO2 sensor
    • Wago modules

      • w704-2054 - 16× DI or 16× DO
      • w750-404 - 2× up/down counter
      • w750-404-000-005 - 2× 16-bit up counter
      • w750-450 - 4× AI for resistance/temperature measurement
      • w750-451 - 8× AI for resistance/temperature measurement
      • w750-453 - 4× AI for current 0...20 mA
      • w750-455 - 4× AI for current 4...20 mA
      • w750-457 - 4× AI for voltage 10...10V
      • w750-458 - 8× AI for thermocouples
      • w750-459 - 4× AI for voltage 0...10V
      • w750-496 - 8× AI for current 0...20mA, 4...20mA or 3.6...21mA
      • w750-497 - 8× AI for voltage 0...10V DC or ±10V DC
      • w750-511 - PWM signal generator
      • w750-515 - 4× relay module
      • w750-517 - 2-channel relay output
      • w750-530 - 8× DI
      • w750-553 - 4× AO for current 0...20mA
      • w750-555 - 4× AO for current 4...20 mA
      • w750-556 - 2× AO for voltage ±10 V
      • w750-559 - 4× AO for voltage 0...10V
      • w750-597 - 8× AO for voltage 0...10 V and ±10 V
      • w750-600 - bus termination module
      • w750-602 - internal bus power supply module, 10 A
      • w750-613 - internal bus power supply module, 2 A
      • w750-627 - termination module for bus extension
      • w750-628 - bus extension module
      • w750-638 - binary pulse counter
      • w750-642 - EnOcean radio receiver
      • w750-652 - RS-485, RS-422 or RS-232 module
      • w750-960 - PROFIBUS industrial bus connector
      • w750-1400 - 16× DI
      • w750-1405 - 16× DI
      • w750-1406 - 16× DI

DT_TO_DATE

Function name

DT_TO_DATE

ST call

PROGRAM DT_TO_DATE_DEMO
    VAR
        DT1: DT;
        DATE1: DATE;
    END_VAR
    DATE1:=DT_TO_DATE(DT1);
END_PROGRAM

Description

The function brings the input value to the output as a date.

Inputs

InputTypeDescription
IN1DTInput value

Outputy

OutputTypeDescription
=>DATEOutput value

Application example

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DATE_TO_LDATE