20 SERIAL COMMUNICATION INSTRUCTIONS
20.2 Executing the Protocols Registered for the Predefined Protocol Support Function
1679
20
Processing details
• The protocol setting data written to the flash ROM is executed using the module specified by (U). All the protocols to be
executed follow the contents of the control data that has been stored in the device specified by (s) and later. The channel
specified by (n1) is used.
• One attempt of the instruction consecutively executes the specified number of protocols (by (n2); maximum 8).
• The completion status of the G(P).CPRTCL instruction can be checked with the completion device (d) and the completion
status indication device (d)+1.
• The following figure shows how the G(P).CPRTCL instruction operates when completing its execution.
The program execution status can be checked with the buffer memory (address: 4041H/4051H).
■
Canceling protocol execution
A protocol can be canceled during its execution.
This function forcibly terminates the protocol being executed when a communication error occurs with the external device.
The function can be executed in the predefined protocol mode only.
• How to cancel the protocol execution
A cancellation can be requested using a sequence program.
Use the following buffer memory areas.
• Operation after the cancellation is requested
[Operation of the dedicated instruction (G(P).CPRTCL)]
The instruction completes with an error, and the error code is stored in (s)+0 (Execution result). If multiple protocols are being
executed sequentially, the cancellation-target protocol ('n'th protocol) is forcibly terminated, and the subsequent protocols are
not executed.
[Operation of the C24]
If the function is executed (a cancellation is requested) while no protocol is being executed, the C24 performs no processing.
If the function is executed in the mode other that the predefined protocol mode, the value in the corresponding buffer memory
area is ignored.
• Completion device (d)
This device turns on during END processing of the scan where the G(P).CPRTCL instruction completes, and turns off during the next END processing.
• Completion status indication device (d)+1
This device turns on or off depending on the completion status of the G(P).CPRTCL instruction.
When completed successfully: The device remains off.
When completed with an error: The device turns on during END processing of the scan where the G(P).CPRTCL instruction completes, and turns off during the
next END processing.
Address (decimal (hexadecimal))
Name
Set value
CH1
CH2
16448 (4040H)
16464 (4050H)
Protocol cancellation specification
0: No cancellation specified
1: Cancellation requested (by user)
2: Canceled (by the C24)
END
0
END
0
END
0
END
0
OFF
OFF
OFF
OFF
ON
ON
Sequence scan
G(P).CPRTCL instruction
Completion device (d)
1 scan
Completion of the instruction
Completed successfully
Completed with an error
Execution of the instruction
Completion status
indication device (d)+1
Содержание MELSEC iQ-R Series
Страница 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
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Страница 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
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Страница 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Страница 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Страница 204: ...202 5 SEQUENCE INSTRUCTIONS 5 3 Output Instructions Operation error There is no operation error ...
Страница 470: ...468 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 472: ...470 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 479: ...6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions 477 6 Operation error There is no operation error ...
Страница 504: ...502 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 518: ...516 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 520: ...518 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 754: ...752 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 756: ...754 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 758: ...756 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 760: ...758 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 895: ...7 APPLICATION INSTRUCTIONS 7 16 Ramp Signal Instruction 893 7 Operation error There is no operation error ...
Страница 917: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 915 7 Operation error There is no operation error ...
Страница 919: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 917 7 Operation error There is no operation error ...
Страница 1415: ...13 SFC PROGRAM INSTRUCTIONS 13 1 SFC Control Instructions 1413 13 Operation error There is no operation error ...
Страница 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Страница 1795: ...25 TYPE CONVERSION FUNCTIONS 25 1 Converting BOOL to WORD 1793 25 Operation error There is no operation error ...
Страница 1805: ...25 TYPE CONVERSION FUNCTIONS 25 10 Converting WORD to DINT 1803 25 Operation error There is no operation error ...
Страница 1819: ...25 TYPE CONVERSION FUNCTIONS 25 21 Converting INT to DWORD 1817 25 Operation error There is no operation error ...
Страница 1950: ...1948 32 STRING FUNCTIONS 32 2 Extracting String Data From the Left Right Operation error There is no operation error ...
Страница 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Страница 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Страница 2082: ...2080 APPX Appendix 6 Process Control Program Examples 129 Set the default value of the loop tag ...
Страница 2093: ...APPX Appendix 7 List of Loop Tag Memory Areas Used by Process Control Instructions 2091 A MEMO ...
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