Identification Register in the Digital Module | Siemens CP 243-2

Interface to the User Program in the S7-200 CPU

2.3.1Identification Register in the Digital Module

Meaning

The identification register signals the I/O module identifier to indicate the existence of an 8DI/8DO digital module with the value specified below.

The address at which the program can access the identification register depends on the slot in which the CP 243-2 is inserted.

For further information about the special bit memory and its structure for I/O modules, refer to /4/.

Range of Values

The identification register can be read via the special bit memory of the S7-200 CPU. It provides the fixed value 05H.

Example

Assuming that the CP 243-2 is inserted directly beside the S7-200 CPU.

The content of the identification register can be read from SMB8.

2-8	SIMATIC NET CP 243-2 AS-i Master
	C79000-G8976-C142/02

Image 34

Siemens CP 243-2 installation instructions Identification Register in the Digital Module, Meaning, Range of Values, Example

Contents

Appendix AS-Interface MasterManual 07/2000 C79000-G8976-C142 Release Correct Usage Safety GuidelinesQualified Personnel Trademarks Purpose of the Manual We recommend the following procedure whenPreface Requirements Preface Contents Command Interface Signaling Errors and Diagnostics in the User ProgramDealing with Problems / Error Displays Glossary Index References Simatic NET ± Support and Training Contents Technical Description and Installation Instructions General Notes on Operation ± Safety Warnings AS-i Uses of the ModuleDP Slave and AS-i Master Master Components Supplied Feature Technical Specifications of the ModuleExplanation/Values Slots in the S7-200 Installing the ModulePossible Restrictions Front Panel ± Access to all Functions Connection, Display and Control Elements Connections Terminal BlockConnections to the AS-i Cable Technical Description and Installation Instructions Standard Operation Modes of the CPExtended Operation Meaning of the LEDs Displays and Operator ControlsChanging the Display Status ± Display Button SET Button LED color Status DisplayInterpreting the Status Display Status LED color Status SF red System error Meaning Interpreting the Slave Display Status Characteristics of the Slave DisplaySlave Display Display Statuses in Detail Example of a Slave Display Example of a Slave Display Protected Mode Configuring the AS-Interface with the SET ButtonConfiguration Mode Interpreting the Display Status Preparing to Configure Configuring Technical Description and Installation Instructions Interface to the User Program S7-200 CPU S7-200 CPU OverviewCP 243-2 as Expansion Module in the S7-200 Digital Module Analog Module Examples Addressing the CP 243-2 in the S7-200 CPUAddress Areas CPU Example of a CPU 224, a CP 243-2 and a CP CPU 14 DI 10 do CPU 14DI 10 do Module Meaning of the Data in the Digital Module Overview Range of Values Identification Register in the Digital ModuleMeaning Example Example of Access to the Error Register Error Register in the Digital ModuleMeaning for the User Program Description of the Bits Status Byte Input Register 8DIStructure of the Status Byte Bit Value Bit Control Byte Output Register 8DOStructure of the Control Byte Value Meaning Meaning of the Data in the Analog Module Digital module 8DI/8DO Identification Register in the Analog Module Structure of the Error Register Error Register in the Analog ModuleBit Description/Range of Values Example of Access to the Error Register Principle Access to the Analog Input and Output WordsAccess in the User Program Advantage Interface to the User Program in the S7-200 CPU Assignment of the Input Areas Analog Input AreaS7-200 CPU Banks 16±30 Reserved area Bank 1 Diagnostics on the AS-InterfaceBanks 2±15 Response data on the AS-Interface Bank 31 Binary input data of the AS-i slaves 1B ± 31B Banks 32±47 Analog input data of the AS-i slaves Banks 48±63 Reserved area Assignment of the Output Areas Analog Output AreaBank 1 reserved Bank 31 Binary output data of the AS-i slaves 1B ± 31B Banks 2±15 Command data on the AS-InterfaceBanks 32±47 Analog output data of the AS-i slaves Access to the Data of the AS-i Slaves Access to the Binary Values Bank Byte no Bit 7±4 Bit 3±0 Reserved Slave 1B Data Exchange in the Stop Mode of the S7-22x CPU Special Feature of Analog Slaves AS-i slaves Output byte Access to the AS-i User Data Data Access with Micro Assignment of the AS-i Analog Data Access to the Analog ValuesBank Byte no Meaning 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 Representation of the Analog Values Special Situations Access to the AS-i Analog Data SBR 4 STL Access to the Data of the AS-i Slaves Signaling Errors and Diagnostics User Program Signaling Error Signaling Example Reading the Delta List STL Example Signaling Errors and Diagnostics in the User Program Command Interface Command interface of the CP Command Buffer and Response Buffer Command Sequence AS-i master User program Reaction to command Example SBR 3 STL Q1.0 Select bank AIW0, VW512 Parameter Description of the AS-i CommandsName Return LPF General Structure of the Command Buffer Bank Byte Meaning / Content General Structure of the Response Buffer Bank Byte Command Status General Structure of the AS-i Slave Address Bit Slave address Structure of the Job Data in the Send Buffer SetPermanentParameterPurpose Structure of the Job Data in the Receive Buffer GetPermanentParameter Purpose of the Command WriteParameter ReadParameter StoreActualParameters ID code SetExtendedPermanentConfigurationExtended ID2 code GetExtendedPermanentConfiguration StoreActualConfiguration GetExtendedActualConfiguration SetExtendedLPS Reserved Mode SetOfflineMode SelectAutoprogramming SetOperationMode ChangeAS-iSlaveAddress Read error in non-volatile memory Parity error detected Error detectedEnd bit error detected GetAS-iSlaveStatus Reserved GetLPS, GetLAS, GetLDS, GetFlags Flag Bit Number Meaning Meaning 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 ReadVersionID Purpose ReadAS-iSlaveID Reserved ID code ReadAS-iSlaveID1 Reserved Extended ID1 code WriteAS-iSlaveExtendedID1 Irrelevant Extended ID1 code ReadAS-iSlaveID2 Reserved Slave ID2 Reserved Configuration ReadAS-iSlaveI/O GetLPF WriteAS-iSlaveParameterString ReadAS-iSlaveParameterString Byte Meaning ReadAS-iSlaveIDString ReadAS-iSlaveDiagnosticString ReadDataandDeltaList Structure of the Command BufferStructure of the Response Buffer Delta Slave Reserv Slave 7B Slave 6B Command Interface Dealing with Problems / Error Displays Detecting Defective AS-Interface Slaves Simple Replacement of AS-Interface SlavesYou can now replace the defective slave as follows Error Error Displays of the CP 243-2 / Remedying ErrorsPossible Cause Remedy Error Possible Cause Remedy Dealing with Problems / Error Displays Dealing with Problems / Error Displays List of Master Functions Available Pics for the CPComment / Function implemented by / Section AS-Interface Protocol Implementation Function or Call on the Host Interface Idcod AS-Interface Protocol Implementation References Simatic S7-200 Order numbers References EU Directive EMC 89/336/EEC Installation InstructionsProduct Name Area of Application Simatic NET CP 243-2 AS-i Master C79000-G8976-C142/02 Simatic Customer Support Hotline Simatic NET ± Support and TrainingSimatic Training Center Nuremberg Johnson City Singapore Simatic Basic Hotline Further Support Simatic Customer Support Online ServicesSimatic Premium Hotline Glossary AS-i standard slave AS-i moduleAS-i slave Extended AS-i master Nibble Standard AS-i master Glossary-4 Index PICS, A-1