Mitsubishi Electric Melsec Q Series Programming Manual page 227

5 OPERATION CONTROL PROGRAMS
Data usable in each instruction
(4) How to specify data
There are the following six different data usable in each instruction.
(a) 16-bit integer type data
The 16-bit integer type data is 16-bit integer value data.
Word devices are used in increments of 1 point.
Data ranges are shown below.
Decimal representation
Data range K-32768 to K32767
(b) 32-bit integer type data
The 32-bit integer type data is 32-bit integer value data.
Word devices are used in increments of 2 points: (specified device No.),
(specified device No.+1). Data ranges are shown below.
Decimal representation
Data range K-2147483648L to K2147483647L
(c) 64-bit floating-point type data
The 64-bit floating-point type data is IEEE-formatted, 64-bit floating-point
value data.
Word devices are used in increments of 4 points: (specified device No.),
(specified device No.+1), (specified device No.+2), (specified device No.+3).
1) The internal bit locations are shown below.
(+3)
b63 b62
2) The represented value is shown below. (The bias value is H3FF.)
[Sign bit field]
(-1)
Numerical data
Bit data
Batch bit data
Logical data
(+2)
b52b51
(1.0+[decimal field])
5 - 4
Integer data 16-bit integer type data
32-bit integer type data
64-bit floating-point type data
Hexadecimal representation
H0000 to HFFFF
Hexadecimal representation
H00000000L to HFFFFFFFFL
(+1) (Specified device number+0)
b51 to b0 (52 bits)
Decimal field
b62 to b52 (11 bits )
Bias exponent field
b63 (1 bit)
Sign bit field
([Bias exponent field]-[bias value])
2
b0