Current value is zero, Examples | Schneider Electric SR2MAN01

						LD Language Elements
Initialization	Status of the contacts and current value on initialization of the program:
	z The normally open mode (direct state) is inactive,
	z The normally closed mode (inverse state) is active,
	z The current value is zero.
Examples
Examples	Below, three simple examples of the use of a counter (configured in upcounting
	mode toward the preset value):

		Screen				Description

						Upcounting and zero resetting:
		I1-------------		CC1		Upcounting and zero resetting:
		I1-------------		CC1		The counter is incremented each time input I1 is activated.
		I2-------------		RC1		The counter is incremented each time input I1 is activated.
		I2-------------		RC1		The counter is reset each time input I2 is activated.
						The counter is reset each time input I2 is activated.


						Downcounting and Resetting:
		I1-------------		CC1		Downcounting and Resetting:
				DC1		The counter is decremented each time input I1 is activated.
				DC1		The counter is decremented each time input I1 is activated.
		I2-------------		RC1		The counter is reset each time the I2 input is activated.


						Upcounting, Downcounting and Resetting:
		I1-------------		CC1		Upcounting, Downcounting and Resetting:
		I3				The counter is incremented each time input I1 is activated. The
		I3				counter is decremented each time the I3 input is activated.
		I3-------------		DC1		counter is decremented each time the I3 input is activated.
		I2-------------		RC1		The counter is reset each time the input I2 is activated.

SR2MAN01 11/2007

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Image 104

Schneider Electric SR2MAN01 user manual Current value is zero, Examples, Mode toward the preset value

Contents

Zelio Logic Smart Relay 11/2007 Table of Contents Configuration Menu Default MenuClear Program Menu Transfer Menu Diagnostics Implementing a Basic ApplicationDebugging an Application Sample Application Safety Information Important Information Safety Information About the Book At a Glance Presentation Initial Power up and DiscoveringChapter Name Initial Power up and Discovering Subject of this Chapter Whats in this Chapter? Topic Safety Preliminary Advice Risk of Electric SHOCK, Explosion or Electric Arcing Involuntary Operation of Equipment Introduction Description Smart Relay Front Panel Presentation of the Smart Relay Front PanelU 2 5 S E P 1 6 4 Prompt Element Description of the LCDAn Active input or output is displayed in reverse video Rectified and filtered Characteristics and ConnectionsRegulated Control Keys on the Front Panel of the Smart Relay N / S T O PShift Key Menu/OK Key Round for a link only in programming mode Zx KeysAre marked above the keys Navigation keys are used to move left or right, down or up Menus Contextual menu appears Illustration Ins + Param Del Using the contextual menu functionsContextual Examples Introduction Language SelectionStep Action View Or then E a R P R O G A N S F E R R S I O N N G U a G E D E O P View A N G E D / H U L 2 0 0 2 7 3 0 s Secs / WK Then Times in LD modeModification of Date and Hour View 3 4 B C D E Chapter Chapter Name Functions Accessible from the Front PanelSubject of this Section Whats in this Part? To return to the previous menu, press left navigation key Overview of the Functions Accessible from the Front PanelLine flashes to indicate where you are positioned Certain menus are specific to either LD or FBD mode ConfiguringDifferences Between LD FBD Modes Extensions Input/Output Screen Programming type LD or FBD Mode Stop or RUN Inputs-Outputs Screen3 4 5 N 2 2 S E P 1 5 5 Access to Main Menu Switching Between Screens Text and Display screenL u e c o u n t e r T e 1 1 / 2 0 0 Press the Shift key white key to display the contextual menu Result Param is displayed at the bottom of the screen Programming Menu Subject of this Chapter Chapter? Following manner Rules for Entering Ladder DiagramsSmart relay allows you to enter 120 line Ladder diagrams M1----I4-I5-I6-Q1 Rules Incorrect Correct Ins Del Method for Entering a Contact or CoilDescription Entering an Element Steps 7 to 9 are only necessary when entering a coil Modifying an element Initialization Deleting an Element Entering a Link Description Entering a Link Deleting a Link Replacing a Link with a Contact Description Accessibility of parameters Entry of Function Block Parameters Entering Parameters on Creation of the Block Ins. + Param DelModifying Parameters Existing Blocks To modify the parameters of an existing element, simply Insertion Deletion and Insertion of Diagram LinesDeletion Parameters menu LD modeParameters Menu FBD mode Parameter Modification RUN Mode Monitoring Menu To modify the parameters, proceed as follows Following three choices for starting the program RUN/STOP MenuStartup O P Off Smart Relays Without Screen Configuration Menu Password Menu Password to perform certain operations Entering Password PasswordE a R 1 Removing E a R 2 3 0 M I N U T E S Filter Menu Description Filter-Type SelectionFiltering Commutation Response time Slow Fast Description Zx Keys in RUN Mode Zx Keys Menu Watchdog Cycle Menu Illustration C L E = 0 5 x 0 2 m S Actions Cycle Time Watchdog Configuration Description Clearing the Program Clear Program MenuClear Prog Menu M O R Y Z E L I O Transfer MenuL I O M E M O R Y Module → Backup Memory Transfer Backup Memory → Module Transfer RUN, remove the Eeprom cartridge SR2 MEM02 Absence of backup memory ApplicationIncompatible With firmware on Use of SR2 MEM01 and SR2 MEM02 Version Menu D U L E S R 3 B 2 6 1 B DR D W a R E 0 1 R M W a R E 0 1 1 4 1 B D Language Menu A L I a N O Default Menu Fault MenuFault 0 0 Reset to Zero of the Fault Counter Illustration Fault Types Default Menu Change DATE/TIME Menu A N G E Steps Description Clock ConfigurationExample Change SUMMER/WINTER Menu Smart relays with a clock Configuration of the Time Change To configure automatic time change, proceed as follows LD Language Chapter Chapter Name LD Language Elements LD Language Elements Ladder Diagrams Diagram Panel of a smart relayIntroduction Composition Normally open mode Normally closed modeDiscrete Inputs Use as a Contact Contact ModificationState of a Zx Keys Place the mouse over the letter representing the contact Normally open mode direct state is inactiveNormally closed mode reverse state is active Contact Auxiliary RelaysThey can be used as internal variables Contactor mode Impulse relay modeLatch mode Unlatch mode Normally open mode Modifying the Mode of a Coil or a Contact Following inputs I1, I2, I3, I4, I5 and IB Latching InitializationActivated Window Discrete Discr Outputs Smart relay and any extensions SQ1 Window associated with the output Timers Coil TT Command Input Coil RC Reset InputCommand input Reset input Type of timer Preset value Unit Symbol Form Maximum valueTime unit Parameter lock Command input timing diagram Timer typeNumber Parameter Description Time unit Following diagram shows the operation of the type a timer Off delay type CFollowing diagram shows the operation of the type C timer Active, control held down type a Timing after pulse type W Combination of a and COn pulse one shot type B Following diagram shows the operation of the type D timer Following diagram shows the operation of the type L timerFlasher unit, control held down synchronously type D Flasher unit, Press to start/stop, Synchronous type d Following diagram shows the operation of the type T timer Normally closed mode inverse state is activeTime on addition type T Current values is are zeros Preset value t Illustration Timers configuration screen Coil RC Reset Initial Counter State Input CountersCoil CC Counting Pulse Input Coil DC Counting Direction input Counting direction input Reset Initial Counter State inputEvery time key Z1 is pressed, the counter starts from Contact is conducting as long as Type of counting Counter output Counter output timing diagram Number Parameter Description Command inputCounter reset input timing diagram Initialization R Counting Examples Mode toward the preset valueCurrent value is zero Fast Counter Enable function input Coil TK1 Enable function inputCoil RK1 Reset initial counter state input 120 Duration of pulse Symbol of the Duration of pulse parameterCycle type Symbol of the Parameter Lock parameter Verrouillé Number Parameter Description Cycle type Single/Repetitive Value Counter reset to its initial stateCurrent Counter Up-Counting in Single Cycle Mode Down-Counting in Single Cycle Mode Up-counting in Repetitive Cycle Mode Down-Counting in Repetitive Cycle Mode TK1 RK1 Counter Comparators Analog Comparators Configuration from Front Panel Xl Comparison OperatorX1 H ≤ x2≤ x1 + H Values to compare Parameter locking Reference valueHysteresis parameter N a L O G ≤ ξ 2 ≤ x 1 + H= 4 = R = 1 = I e N a L O G ≤ x = I d = I e Temperature is below 20 C Comparison operator no is chosen, that is ≤ Mode or its inverse state mode normally closed, see below Symbol of the normally open contact, representing a clockSymbol of the normally closed contact, representing a clock Clocks D / W O N O F F RelayNumber Parameter Operating ranges Day at Interval Start on Friday at End on Monday at 2 3 4 2 3 Texts These function blocks are used as coilsOnly the block with the highest number is displayed Display from the Text screen to the inputs-outputs screen Display deactivation Display Activation coil Display Deactivation coilDisplay Activation LCD Screen Backlighting Used as a Coil Check the Activate Summer/Winter Time Change box AccessChange to Summer / Winter Time Modifying the Mode of a Coil or a Contact Initialization Europe Europe Words sent by the master Modbus Inputs/OutputsSmart relay Use of the Coil Command input Message Configuration from the Front Panel Initialization Creating and Debugging an Application Implementing a Basic Application Normal electrical diagram Ladder diagram Presentation of Ladder DiagramsWorks a two-way switch Mon Module Wiring Below, an illustration of smart relay wiringOperation Can be used in place of two position switches Using the Reverse Function Input I wired on the smart relay Practical Example Electrical diagram Connection to the smart relayLadder diagram 1 Light off when idle Off delay Operating Electrical diagram Equivalencies Between Notations Electrical symbol Ladder symbolNotation Used by the Smart Relay 156 Step Action Screen Comment Application Implementing a Two-way SwitchDescription Go to the Programming Screen Entering Contacts First Line To enter the contacts in the first line, proceed as follows Step Action Screen Entering the Coil and Joining it to the Contacts Fois Entering Contacts Second Line To enter the contacts in the second line, proceed as follows Joining the Second Line to the First To join the second line to the first, proceed as followsSecond 1 in the second line Flashes Programming is selected Launching the ProgramTo launch the program, proceed as follows Debugging an Application Module in RUN Mode Viewing Status N L D Menus RUN mode Changing Ladder Diagrams Dynamic Mode Ladder DiagramsViewing Ladder Diagrams Using Z Keys as Pushbuttons 3 4 5 N 2 2 S E P 1 5 5 Presentation Dynamic Mode Function Block ParametersAccessing Menus Not. Here is a summary table Dynamic Mode MenusDynamic Mode Option defined in the parameters window Smart Relay Reaction to a Power FailureEvent of a power failure Example of a non-locked coil Safety ModeWith the clock function block 1 configured as follows Backup and Transfer of Ladder Diagrams19 Saving and Transferring Ladder DiagramsMemory optional and vice-versa This allows Sample Application Specifications Specification Analysis InputsButton Outputs Special function blocks Smart relay label Name Implementing the Solution Description Implementing Ladder Diagram O F F 1 2 0 Function Blocks Function block Comment Analog function block A1 Compares the measured CO 2 levelWith the threshold value 8.5 Fan operating duration if the CO Diagnostics Chapter Name Diagnostics 187 Smart Relay Messages 188 Frequently Asked Questions 189 Message Cause Corrective action Relay, their possible causes and how to remedy the problemSmart Relay Messages Frequently Asked Questions Questions are listed here Answer FrequentlyAsked Questions Appendices This section contains product-related appendicesAppendix contains the following chapters Appendix? Chapter CompatibilitySubject of this Smart relay firmware version Version Memory Cartridge to Smart Relay Type of memory cartridge Version of firmware compatibleSmart relay firmware language Memory cartridge Index Menu Change DATE/TIME Change SUMMER/WINTER, 83 Clear Prog 35007143