1044
7 APPLICATION INSTRUCTIONS
7.27 Module Access Instructions
Processing details
• When executed, the S(P).ZCOM instruction temporarily stops sequence program processing by the CPU module and
perform refresh processing for the module specified by (J/U).
• The following is applicable when refresh processing of the CC-Link IE Controller Network module or MELSECNET/H
module (network between programmable controllers) is performed.
Precautions
• The S(P).ZCOM instruction can be used as many times as needed in the program. Note, however, that the scan time of the
program is extended by the refresh time.
• Interrupts are enabled during execution of the S(P).ZCOM instruction. If refresh data is used by an interrupt program, data
separation may occur.
Operation error
• The S(P).ZCOM instruction cannot be used in the interrupt program.
• To communicate only with external devices, use the COM(P) instruction.
(1) Refresh processing
• When the scan time of the sequence program of the host station is longer than that of another station, the S(P).ZCOM instruction is used to ensure the import
of data from the other station.
[When the S(P).ZCOM instruction is not used]
[When the S(P).ZCOM instruction is used]
• When the link scan time is longer than the sequence program scan time, using the S(P).ZCOM instruction will not make data communication faster.
Error code
(SD0)
Description
2800H
The specified start I/O number is out of the range, 0 to FFH.
2801H
No module exists at the position specified by the start I/O number.
2804H
The network number set to (J) is out of the range, 1 to 239.
2820H
The specified network number is not connected to the host station.
0
END
END
ZCOM
ZCOM
ZCOM
(1)
(1)
(1)
(1)
(1)
0
END
END
0
0
0
END
0
END
0
END
Program
(on the control station)
Link scan
Program
(on the normal station)
0
END
0
END
0
END
0
END
0
END
0
ZCOM
ZCOM
ZCOM
Program
(on the control station)
Link scan
Program
(on the normal station)
0
END 0
END
END
ZCOM
ZCOM
0 ZCOM
0 ZCOM
END
Program
Link scan
Содержание MELSEC iQ-R Series
Страница 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Страница 2: ......
Страница 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Страница 34: ...32 MEMO ...
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 ...
Страница 2109: ......