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19 DATA LOGGING FUNCTION
19.5 Details of Specifications
<Data row>
The collected data value is displayed. A single row means the data collection interval. The data collected by the trigger at a
time is displayed in the single row.
*1 When the numerical value to be output becomes out of the range of -2147483648.0 to 4294967295.0, it will be displayed in an
equivalent format to "exponential format and the number of decimal part digits is nine".
*2 When the data value is not the output format specified in the data type, "NaN" will be output in the data row.
*3 When "0" which means the end of a character string is in the data, the subsequent data will not be output. Characters which is out of the
range of ASCII or SJIS such as double quotation mark ("), comma (,), semicolon (;) will be replaced with period (.).
The size of the data type information row is determined by the following equation when data logging of 128 points of data from
D100 to D227 (unsigned word type, decimal format) is performed (The following sections in the "Output" window are set to be
output: "Date" (the output format is YYYY/MM/DD hh:mm:ss.sss), "Data sampling interval", and "Index").
23 (date column) + 12 (data collection interval column) + 10 (index column) + (6 128) (data column) + 132 (the number of
commas) + 2 (CR + LF)
= 947 bytes
Item Description Size
Date column Information is output according to the date information. 1 to 32 bytes
Data collection
interval column
The time interval from the previous collection time to the current collection time is output. If the
maximum display range is exceeded, the count returns to 1 and starts again to output a new
time interval
(unit: s, display range: 1 to 100000000000).
1 to 12 bytes
Index column A value which increments in ascending order from 1 is output. When it exceeds the upper
limit, it returns to 1 and increments again (range: 1 to 4294967295).
1 to 10 bytes
Data column The collected data value is output in a format and size in accordance with each data type.
When bits are specified: bit On = 1 and bit Off = 0 are output. 1 byte
When signed word type is specified: data value is output according to the specified output
type.
• Decimal format: 1 to 6 bytes
• Decimal fraction format: 1 to 21
bytes
*1
• Exponential format: 5 to 21 bytes
When unsigned word type is specified: data value is output according to the specified output
type.
• Decimal format: 1 to 6 bytes
• Hexadecimal format: 1 to 4 bytes
• Decimal fraction format: 1 to 21
bytes
*1
• Exponential format: 5 to 21 bytes
When signed double word type is specified: data value is output according to the specified
output type.
• Decimal format: 1 to 11 bytes
• Decimal fraction format: 1 to 26
bytes
*1
• Exponential format: 5 to 22 bytes
When unsigned double word type is specified: data value is output according to the specified
output type.
• Decimal format: 1 to 11 bytes
• Hexadecimal format: 1 to 8 bytes
• Decimal fraction format: 1 to 26
bytes
*1
• Exponential format: 5 to 22 bytes
When single-precision real number is specified: data value is output according to the specified
output type.
*2
• Decimal format: 1 to 11 bytes
• Decimal fraction format: 1 to 26 bytes
• Exponential format: 5 to 22 bytes
When character string is specified: the specified character string is output.
*3
1 to 256 bytes
When numeric string is specified: the character string which is represented by the
hexadecimal in increments of a byte is output without clearance.
[Ex.] When the start device is D0 and the numeric string is four bytes, it will be displayed as:
D0:0x8A6B, D1:0x41C2 "6B8AC241"
2 to 512 bytes
When time is specified: T#-24d20h31m23s648ms to T#24d20h31m23s647ms is displayed. 13 to 20 bytes
Trigger occurrence
information column
The specified character string is output when the trigger occurs. In other cases, no character
string is output.
0 to 512 bytes
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