H135-E1-01 (986778), страница 5
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This error does not apply to Echoback Tests.(Refer to the Echoback Test for details.)• There was no SID and command text. There was no command text.• “MRC/SRC” not included in command text.716Sub-address error• Illegal (unsupported) sub-address• There was no sub-address, SID, and command text.• Sub-address was less than two characters, and there wasno SID and command text618Frame length errorThe received frame exceeds the specified (supported) number of bytes.4• An end code is returned for each command frame received that was addressed to the local node.• No response will be returned unless the frame contained all elements up to the ETX and BCC.• “Error Detection Priority” indicates the priority when two or more errors occur simultaneously.2-3SECTION 2 CompoWay/F Communications Procedures■ Communications DataCommunicationsformatSet (monitor)valuesCompoWay/F8-digit hexadecimalNegative valuesDecimal point2’s complementDecimal point is removed and the result is convertedto hexadecimal.Example conversion: 105.0 → 1050 → H’0000041A■ End Code ExampleThe following examples show the end code when a command did notend normally.Example 1) Illegal Sub-address, No SID, and No Command TextCommandBCCNode number Sub-addressSTX0AEXTResponseBCCNode number Sub-address End codeSTX0A16EXTEnd code is “16” (sub-address error).The sub-address error code is used because the sub-address error hasa higher error detection priority than the format error.Example 2) No Command TextCommandNode number Sub-address SIDSTX000BCCEXTResponseBCCNode number Sub-address End codeSTX0014The end code is “14” (format error).Example 3) No Node Number ProvidedCommandBCCSTXEXTThe node number is lacking one character.ResponseThere is no response.2-4EXT2.1 Data FormatExample 4) No Sub-address and Illegal BCCCommandBCCNode numberSTXEXTErrResponseNode number Sub-addressSTX00BCCEnd code13EXTThe sub-address is “00” and the end code is “13” (BCC error).2-5SECTION 2 CompoWay/F Communications Procedures2.2 Structure of Command Text■ PDU StructureAn MRC (Main Request Code) and SRC (Sub-Request Code) followedby the various required data is transferred to the command text.Service Request PDUMRC SRCDataThe MRES (Main Response Code) and SRES (Sub-Response Code)are transferred to the response frame following the above MRC/SRC.Data is then transferred following the MRES and SRES.Service Response PDU (Normal Response)DataMRC SRC MRES SRESIf the specified command text could not be executed, the serviceresponse PDU will contain only the MRC/SRC and MRES/SRES.Service Response PDU (Command Text Not Executed)MRC SRC MRES SRESMRES/SRES provides the response code.
MRES/SRES are not outputwhen processing ends in a normal completion.■ Area DefinitionsAreas comprise only the variable area.■ Type Code (Variable Type)The following tables show the variable area type codes.Variable type (1 byte)MSB1LSB10Access size11: Double word2-6000Area0: Setup area 01: Setup area 1Read/Write0: Read only1: Read/Write2.2 Structure of Command TextThe following table summarizes setup areas 0 and 1.AreaDescriptionSetup area 0This area groups together the protect, manual control, operation, and adjustment levels.Setup area 1This area groups together the initial setting, communicationssetting, advanced function setting, and calibration levels.The variable type is converted to 2-byte ASCII and loaded to the frame.The following table shows the available variable types.Variable typeDescriptionC0Double-word data.
R/O (read only) parameter for setuparea 0.C1Double-word data. R/W parameter for setup area 0.C3Double-word data. R/W parameter for setup area 1.* Setup area 1 has no read-only parameters, so there is no variabletype “C2.”■ AddressesAn address is appended to each of the variable types. Expressaddresses in 2-byte hexadecimal and append them for the specifiedaccess size.■ Number of ElementsThe number of elements is expressed in 2-byte hexadecimal. Specifythe number of elements within the range “0 to 2.”For example, when the number of elements is “0002,” this specifies twoitems of data from the address.■ List of ServicesMRCSRCName of serviceProcessing0101Read Variable AreaThis service reads from variable areas.0102Write Variable AreaThis service writes to variable areas.0503Read ControllerAttributesThis service reads the model numberand communications buffer size.0601Read Controller StatusThis service reads the operating status.0801Echoback TestThis service performs an echobacktest.3005Operation CommandThis service performs operations suchas RUN/STOP, executing/stopping AT(auto-tuning), and moving to SetupArea 1.2-7SECTION 2 CompoWay/F Communications Procedures* No commands will be accepted and no responses will be returnedwhen a memory error (RAM error) has occurred or the Controller isinitializing (until the Controller recognizes the process value after thepower is turned ON).2-82.3 Detailed Description of the Services2.3 Detailed Description of the Services■ Read Variable AreaThis service reads data from a variable area.Service Request PDUMRC SRCVariabletypeReadstart address240 1 0 122BitpositionNumber ofelements0 024Service Request PDUMRC SRC0 1 0 122ResponsecodeRead data (for numberof elements)40, 8, or 16(1) Variable Type and Read Start AddressFor details on variable types and read start addresses, see SECTION 3Communications Data for CompoWay/F and SYSWAY.(2) Bit PositionThe E5CN/AN/EN does not support bit access.
Fixed to “00.”(3) Number of ElementsNumber ofelementsProcessing0000The read operation is not performed (read data is notappended to the service response PDU), and processingends in “normal completion.”0001 to 0002The read operation is performed, and processing ends in“normal completion.”(4) Response CodeNormal CompletionResponse code0000NameNormal completionDescriptionNo errors were found.Error OccurredResponse codeError nameCause1001Command too longThe command is too long.1002Command too shortThe command is too short.1101Area type errorThe variable type is wrong.1103Start address out-ofrange errorThe read start address is outof range.2-9SECTION 2 CompoWay/F Communications ProceduresResponse codeError nameCause110BResponse too longThe number of elements islarger than “0002.”1100Parameter errorBit position is not “00.”2203Operation errorEEPROM error(5) Precautions● Alarm FunctionEven though alarms are not displayed on the Controller’s display, theyfunction normally in communications.■ Write Variable AreaThis service writes data to a variable area.Service Request PDUMRC SRCVariabletypeStartwrite address240 1 0 222Bitposition0 02Write Data (forNumber ofelements number of elements)40, 8, or 16Service Response PDUMRC SRC Responsecode0 1 0 2224(1) Variable Type and Write Start AddressFor details on variable types and write start addresses, see SECTION 3Communications Data for CompoWay/F and SYSWAY.(2) Bit PositionThe E5CN/AN/EN does not support bit access.
Fixed to “00.”(3) Number of ElementsNumber ofelementsProcessing0000The write operation is not performed (do not append writedata to the service request PDU) and processing ends in“normal completion.”0001 to 0002The write operation is performed and processing ends in“normal completion.”(4) Response CodeNormal CompletionResponse code00002-10NameNormal completionDescriptionNo errors were found.2.3 Detailed Description of the ServicesError OccurredResponse codeError nameCause1002Command tooshortThe command is too short.1101Area type errorThe variable type is wrong.1103Start address outof-range errorWrite start address is out of range.1104End address outof-range errorThe write end address (write startaddress + number of elements)exceeds the final address of the variable area.1003Number of elements/data mismatchThe number of data does not matchthe number of elements.1100Parameter error• Bit position is not “00.”• The write data is out of the settingrange.3003Read-only errorVariable type “C0” was written to.2203Operation error• The “communications writing”parameter is set to “OFF” (disabled).• Attempted to write to a parameterin setup area 1 from setup area 0.• Attempted to write to a protectparameter from other than the protect level.• AT (auto-tuning) was in progress.*• EEPROM error* For details on AT (auto-tuning), refer to the separate User’s Manuals.(5) Precautions● Alarm FunctionEven though alarms are not displayed on the Controller’s display, theyfunction normally in communications.2-11SECTION 2 CompoWay/F Communications Procedures■ Read Controller AttributesThis service reads the model number and communications buffer size.Service Request PDUMRC SRC0 5 0 322Service Response PDUMRC SRC0 5 0 322ResponsecodeModel No.410Buffersize0 0 2 84(1) Model NumberThe model number is expressed in 10-byte ASCII.
When 10 bytes arenot required, pad the remaining bytes with spaces.Example: The following model number is used for the E5CN-Q2HH03T(voltage output, two alarm outputs, two heater burnout detection inputs,communications functions, and multiple TC/Pt inputs).e 5 c n - Q 2 H H O(2) Buffer SizeThe communications buffer size is expressed in 2-byte hexadecimal,and read after being converted to 4-byte ASCII.Buffer size: 40 bytes (= H’0028)(3) Response CodeNormal CompletionResponse code0000NameNormal completionDescriptionNo errors were found.Error OccurredResponse code2-12NameDescription1001Command too longThe command is too long.2203Operation errorEEPROM error2.3 Detailed Description of the Services■ Read Controller StatusThis service reads the operating status and error status.Service Request PDUMRC SRC0 6 0 122Service Response PDUMRC SRC0 6 0 122ResponsecodeOperating Relatedstatus informa-tion422(1) Operating StatusOperatingstatusDescription00Control is being carried out (error has not occurred in setuparea 0 and the Controller is running).01Control is not being carried out (state other than above).(2) Related Information76543210Bit position0Heater overcurrent (CT1)Heater current hold (CT1)Heater burnout errorHeater overcurrent (CT2)Heater current hold (CT2)Display range exceededInput error(3) Response CodeNormal CompletionResponse code0000NameNormal completionDescriptionNo errors were found.Error OccurredResponse codeNameDescription1001Command too longThe command is too long.2203Operation errorEEPROM error2-13SECTION 2 CompoWay/F Communications Procedures■ Echoback TestThis service performs an echoback test.Service Request PDUMRC SRCTest data0 8 0 1220 to 23Service Response PDUMRC SRC0 8 0 122ResponsecodeTest data0 to 23(1) Test DataSet between 0 and 23 bytes of user-defined test data.Set a value for the test data within the ranges shown below according tothe communications data length.Communicationsdata lengthTest Data8 bitsASCII data: H’20 to H’7E or H’A1 to H’FE7 bitsASCII data: H’20 to H’7EDo not set the value H’40.
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