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Siemens CP 243-2 Command Sequence, AS-i master User program Reaction to command

Models: CP 243-2

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Command Interface

Command Sequence

The diagram below shows the following:

SHow to execute commands in the user program

SHow the CP 243-2 reacts to a command

AS-i master	CP 243-2
(user program)	(reaction to command)

Set command parameter in the analog output area

Initial status

ASI_COM bit = 0

ASI_RESP bit = 0

Start command

Set ASI_COM bit = 1

Wait for response

ASI_RESP bit = ?

Response data valid

ASI_RESP bit = 1 detected

Evaluate response data

After evaluation, set

ASI_COM = 0

Ready to send command detected

ASI_RESP bit = 0 detected

Initial status

ASI_COM bit = 0

ASI_RESP bit = 0

Receives command

Executes command

Signals command executed

Sets ASI_RESP = 1

Detects that response data were evaluated

Ready for new command

Sets ASI_RESP = 0

Figure 5-1

SIMATIC NET CP 243-2 AS-i Master	5-3
C79000-G8976-C142/02

Image 71

Siemens CP 243-2 installation instructions Command Sequence, AS-i master User program Reaction to command

Contents

07/2000 C79000-G8976-C142 Release AS-Interface MasterManual AppendixTrademarks Safety GuidelinesQualified Personnel Correct UsageRequirements We recommend the following procedure whenPreface Purpose of the ManualPreface Contents Dealing with Problems / Error Displays Signaling Errors and Diagnostics in the User ProgramCommand Interface References Simatic NET ± Support and Training Glossary IndexContents Technical Description and Installation Instructions General Notes on Operation ± Safety Warnings Master Uses of the ModuleDP Slave and AS-i Master AS-iComponents Supplied Explanation/Values Technical Specifications of the ModuleFeature Possible Restrictions Installing the ModuleSlots in the S7-200 Connection, Display and Control Elements Front Panel ± Access to all FunctionsConnections to the AS-i Cable Terminal BlockConnections Technical Description and Installation Instructions Extended Operation Modes of the CPStandard Operation SET Button Displays and Operator ControlsChanging the Display Status ± Display Button Meaning of the LEDsStatus Status DisplayInterpreting the Status Display LED colorLED color Status SF red System error Meaning Display Statuses in Detail Characteristics of the Slave DisplaySlave Display Interpreting the Slave Display StatusExample of a Slave Display Example of a Slave DisplayInterpreting the Display Status Configuring the AS-Interface with the SET ButtonConfiguration Mode Protected ModeConfiguring Preparing to ConfigureTechnical Description and Installation Instructions Interface to the User Program S7-200 CPU Digital Module OverviewCP 243-2 as Expansion Module in the S7-200 S7-200 CPUAnalog Module CPU Addressing the CP 243-2 in the S7-200 CPUAddress Areas ExamplesCPU 14 DI 10 do Example of a CPU 224, a CP 243-2 and a CPModule CPU 14DI 10 doOverview Meaning of the Data in the Digital ModuleExample Identification Register in the Digital ModuleMeaning Range of ValuesMeaning for the User Program Error Register in the Digital ModuleExample of Access to the Error Register Bit Value Status Byte Input Register 8DIStructure of the Status Byte Description of the BitsValue Meaning Control Byte Output Register 8DOStructure of the Control Byte BitDigital module 8DI/8DO Meaning of the Data in the Analog ModuleIdentification Register in the Analog Module Bit Description/Range of Values Error Register in the Analog ModuleStructure of the Error Register Example of Access to the Error Register Advantage Access to the Analog Input and Output WordsAccess in the User Program PrincipleInterface to the User Program in the S7-200 CPU S7-200 CPU Analog Input AreaAssignment of the Input Areas Bank 31 Binary input data of the AS-i slaves 1B ± 31B Bank 1 Diagnostics on the AS-InterfaceBanks 2±15 Response data on the AS-Interface Banks 16±30 Reserved areaBanks 48±63 Reserved area Banks 32±47 Analog input data of the AS-i slavesBank 1 reserved Analog Output AreaAssignment of the Output Areas Banks 32±47 Analog output data of the AS-i slaves Banks 2±15 Command data on the AS-InterfaceBank 31 Binary output data of the AS-i slaves 1B ± 31B Access to the Data of the AS-i Slaves Access to the Binary Values Bit 7±4 Bit 3±0 Bank Byte noReserved Slave 1B Special Feature of Analog Slaves Data Exchange in the Stop Mode of the S7-22x CPUOutput byte AS-i slavesData Access with Micro Access to the AS-i User DataBank Byte no Meaning Access to the Analog ValuesAssignment of the AS-i Analog Data Simatic NET CP 243-2 AS-i Master C79000-G8976-C142/02 Access to the Data of the AS-i Slaves Access to the Data of the AS-i Slaves Access to the Data of the AS-i Slaves Access to the Data of the AS-i Slaves Special Situations Representation of the Analog ValuesSBR 4 STL Access to the AS-i Analog DataAccess to the Data of the AS-i Slaves Signaling Errors and Diagnostics User Program Error Signaling SignalingSTL Example Example Reading the Delta ListSignaling Errors and Diagnostics in the User Program Command Interface Command Buffer and Response Buffer Command interface of the CPAS-i master User program Reaction to command Command SequenceSBR 3 STL ExampleQ1.0 Select bank AIW0, VW512 Return Description of the AS-i CommandsName ParameterLPF Bank Byte Meaning / Content General Structure of the Command BufferBank Byte General Structure of the Response BufferCommand Status Bit Slave address General Structure of the AS-i Slave AddressStructure of the Job Data in the Receive Buffer SetPermanentParameterPurpose Structure of the Job Data in the Send BufferGetPermanentParameter WriteParameter Purpose of the CommandReadParameter StoreActualParameters Extended ID2 code SetExtendedPermanentConfigurationID code GetExtendedPermanentConfiguration StoreActualConfiguration GetExtendedActualConfiguration SetExtendedLPS SetOfflineMode Reserved ModeSelectAutoprogramming SetOperationMode ChangeAS-iSlaveAddress GetAS-iSlaveStatus Parity error detected Error detectedEnd bit error detected Read error in non-volatile memoryReserved GetLPS, GetLAS, GetLDS, GetFlags Bit Number Meaning FlagMeaning of the Flags GetExtendedTotalConfiguration Idcode slave Ext ID1 slave Command Interface Command Interface Reserved Parameter slave 1B StoreExtendedTotalConfiguration Idcode slave Ext ID1 Slave Configuration slave Ext ID2 slave Command Interface Command Interface Configmode Autoaddrenable Echo of the command number 3A H Command status WriteExtendedParameterList Echo of the command number 3C H Command status ReadExtendedParameterEchoList Command Interface Purpose ReadVersionIDReserved ID code ReadAS-iSlaveIDReserved Extended ID1 code ReadAS-iSlaveID1Irrelevant Extended ID1 code WriteAS-iSlaveExtendedID1Reserved Slave ID2 ReadAS-iSlaveID2ReadAS-iSlaveI/O Reserved ConfigurationGetLPF WriteAS-iSlaveParameterString Byte Meaning ReadAS-iSlaveParameterStringReadAS-iSlaveIDString ReadAS-iSlaveDiagnosticString Structure of the Response Buffer Structure of the Command BufferReadDataandDeltaList Delta Slave Reserv Slave 7B Slave 6B Command Interface Dealing with Problems / Error Displays You can now replace the defective slave as follows Simple Replacement of AS-Interface SlavesDetecting Defective AS-Interface Slaves Possible Cause Remedy Error Displays of the CP 243-2 / Remedying ErrorsError Error Possible Cause Remedy Dealing with Problems / Error Displays Dealing with Problems / Error Displays Comment / Function implemented by / Section Pics for the CPList of Master Functions Available Function or Call on the Host Interface AS-Interface Protocol ImplementationIdcod AS-Interface Protocol Implementation Simatic S7-200 ReferencesReferences Order numbersArea of Application Installation InstructionsProduct Name EU Directive EMC 89/336/EECSimatic NET CP 243-2 AS-i Master C79000-G8976-C142/02 Nuremberg Johnson City Singapore Simatic Basic Hotline Simatic NET ± Support and TrainingSimatic Training Center Simatic Customer Support HotlineSimatic Premium Hotline Simatic Customer Support Online ServicesFurther Support Glossary Extended AS-i master AS-i moduleAS-i slave AS-i standard slaveStandard AS-i master NibbleGlossary-4 Index PICS, A-1