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7 BASIC INSTRUCTIONS
7.1 Comparison Operation Instructions
Processing details
• These instructions perform a comparison operation between the 32-bit binary data in the device specified by (s1) and the
32-bit binary data in the device specified by (s2). (Devices are used as NO contacts)
• The following table lists the comparison operation results of each instruction.
Precautions
• When the most significant bit is "1" in the data stored in (s1) or (s2), it is regarded as a negative binary value for
comparison. (Excluding unsigned operation)
• For comparison of 32-bit counter (LC), specify an instruction (LDD=, etc.) that handles 32-bit data. If an instruction (LD=,
etc.) that handles 16-bit data is specified, a program error or operation error occurs. (Same applies for index device (LZ) as
well.)
Operation error
There is no operation error.
Instruction symbol
Condition
Result
D=(_U)
(s1) = (s2)
Conductive state
D<>(_U)
(s1)
(s2)
D>(_U)
(s1) > (s2)
D<=(_U)
(s1)
(s2)
D<(_U)
(s1) < (s2)
D>=(_U)
(s1)
(s2)
D=(_U)
(s1)
(s2)
Non-conductive state
D<>(_U)
(s1) = (s2)
D>(_U)
(s1)
(s2)
D<=(_U)
(s1) > (s2)
D<(_U)
(s1)
(s2)
D>=(_U)
(s1) < (s2)
Содержание MELSEC iQ-F FX5
Страница 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
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Страница 24: ...22 MEMO ...
Страница 25: ...23 PART 1 PART 1 OVERVIEW Part 1 consists of the following chapter 1 OVERVIEW 2 PRECAUTIONS ON PROGRAMMING ...
Страница 126: ...124 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 132: ...130 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 140: ...138 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 191: ...7 BASIC INSTRUCTIONS 7 2 Arithmetic Operation Instructions 189 7 Operation error There is no operation error ...
Страница 202: ...200 7 BASIC INSTRUCTIONS 7 2 Arithmetic Operation Instructions Operation error There is no operation error ...
Страница 278: ...276 7 BASIC INSTRUCTIONS 7 4 Bit Processing Instructions Operation error There is no operation error ...
Страница 280: ...278 7 BASIC INSTRUCTIONS 7 4 Bit Processing Instructions Operation error There is no operation error ...
Страница 915: ...18 TYPE CONVERSION FUNCTIONS 18 13 Converting DWORD to WORD 913 18 Operation error There is no operation error ...
Страница 917: ...18 TYPE CONVERSION FUNCTIONS 18 14 Converting DWORD to INT 915 18 Operation error There is no operation error ...
Страница 932: ...930 18 TYPE CONVERSION FUNCTIONS 18 26 Converting DINT to WORD Operation error There is no operation error ...
Страница 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Страница 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
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