Range Of Values Per Output Format - Mitsubishi Electric QJ81DL96 User Manual

3
SPECIFICATIONS

3.9 Range of Values per Output Format

This section explains the range of values that can be output for each output format.
(1) Integer type
POINT
(2) Float type
Output type
Float (single precision) -3.4028235E+38
Float (double precision) -1.79769313486231570E+308
POINT
The following table shows the range of values that can be expressed with each
integer type.
Output type
Word [unsigned]
Word [signed]
16 bit BCD
*1
Double word [unsigned]
*1
Double word [signed]
32 bit BCD
*1: When using a high speed data logger module with a serial number whose first five digits are '11101'
or lower, the range of values that can be expressed for report output is as follows:
Output type
Double word [unsigned]
Double word [signed]
If device data values or values after scaling exceed the value range, they are
rounded to within the range.
• If the value exceeds the upper limit value, the upper limit value is output.
• If the value is lower than the lower limit value, the lower limit value is
output.
The following table shows the range of values that can be expressed with each float
type.
Negative values
Lower limit Upper limit
-1.401298E-45
-4.94065645841246544E-324
*1: -1.79769313486231570E-308 with the report function.
*2: 1.79769313486231570E-308 with the report function.
If device data values or values after scaling exceed the value range, the following
is output.
• If the value exceeds the upper limit value of positive value, '+Inf' is output.
• If the value is lower than the lower limit value of negative value, '-Inf' is
output.
• For values in a range between the upper limit value of negative value and
the lower limit value of positive value, '0' is output.
Output type
Float (single precision)
Float (double precision)
Lower limit
0
-32768
0000
0
-2147483648
00000000
Lower limit
0
-536870912
Lower limit
1.401298E-45
*1
4.94065645841246544E-324
-Inf
0xff800000 0x00000000
0xfff0000000000000 0x0000000000000000
3.9 Range of Values per Output Format
Upper limit
65535
32767
9999
4294967295
2147483647
99999999
Upper limit
536870911
536870911
Positive values
Upper limit
3.4028235E+38
*2
1.79769313486231570E+308
0 +Inf
0x7f800000
0x7ff0000000000000
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