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MELSEC-Q/QnA
4 HOW TO READ INSTRUCTIONS
5
Discusses the data set for each instruction and the data type.
Data Type Meaning
Bit Bit data or first number in bit data
BIN 16 bits BIN 16-bit data or first number in word device
BIN 32 bits BIN 32-bit data or first number in double word device
BCD 4 digits 4-digit BCD data
BCD 8 digits 8-digit BCD data
Real number Floating decimal point data
Character string Character string data
Device name Device name data
6
Indicates the function of the instruction.
7
Indicates conditions under which error is returned, and error number.
See Section 3.6 for errors not included here.
8
Indicates whether the instruction can be used with each CPU module type.
: Can be used
: Can be used with restrictions (function version, software version)
: Cannot be used
9
Indicates both ladder and list for simple program example.
Also indicates the types of individual devices used when the program is executed.
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