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