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2 CPU MODULE INSTRUCTIONS
2.7 Process Control Instructions
2.7
Process Control Instructions
When a process control program is created, using process control function blocks is recommended.
Process control function blocks have features as follows.
• A process control program can be easily created by placing and connecting FB elements.
• Since the initial value of the function block can be set in the "FB Property" window of the engineering tool,
the program for the initial value setting is not required.
• An operation constant can be input to a label indicating a tag name without being conscious of address of a
device.
• The operating status of a tag FB can be checked and controlled by accessing the tag data from the
faceplate of an engineering tool.
For details on the process control function blocks, refer to the following.
MELSEC iQ-R Programming Manual (Process Control Function Blocks)
I/O control instructions
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Analog input processing
■
Output processing 1 with mode switching
■
Output processing 2 with mode switching
■
Manual output
■
Time proportioning
■
Batch counter
■
Pulse integration
Instruction symbol
Processing details
Reference
S.IN
Performs following processing to the input data (PV): range check, input limiter, engineering value
transformation, and digital filter.
Instruction symbol
Processing details
Reference
S.OUT1
Calculates MV (0 to 100%) from the input data (
MV), and performs the variation rate & upper/
lower limiter processing and output conversion processing.
Instruction symbol
Processing details
Reference
S.OUT2
Performs variation rate & upper/lower limiter processing and output conversion processing to the
input data (MV).
Instruction symbol
Processing details
Reference
S.MOUT
Reads the manipulated value (MV) from the loop tag memory and performs output conversion.
Instruction symbol
Processing details
Reference
S.DUTY
Outputs ON and OFF by changing the ON/OFF ratio in a given cycle in proportion to the input data
(0 to 100%).
Instruction symbol
Processing details
Reference
S.BC
Compares the input data with the set value, and outputs bit data when it reaches the set value.
Instruction symbol
Processing details
Reference
S.PSUM
Integrates the number of input pulses, and outputs the operation result.
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 ...
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