Measurement Computing TempScan/1100 - Manual (Page 88)

4-30 System Configuration 879596 TempScan / MultiScan User's Manual
Binary-to-ASCII Number Conversion Tables
One 4-Bit Binary Digit (Positive Values)
Binary (Hexadecimal) $0-$9 $A $B $C $D $E $F
ASCII Equivalent (Decimal) 0-9 10 11 12 13 14 15
One 8-Bit Byte Binary Format Two 8-Bit Bytes Binary Format
Binary
(Hexadecimal)
ASCII Equivalent
(Decimal)
Binary
(Hexadecimal)
ASCII Equivalent
(Decimal)
$FF -1 $FFFF -1
… (negative values) … (negative values)
$81 -127 $8001 -32767
($80) (128) ($8000) (32768)
$7F +127 $7FFF +32767
… (positive values) … (positive values)
$00 0 $0000 0
Three 8-Bit Bytes Binary Format Four 8-Bit Bytes Binary Format
Binary
(Hexadecimal)
ASCII Equivalent
(Decimal)
Binary
(Hexadecimal)
ASCII Equivalent
(Decimal)
$FFFFFF -1 $FFFFFFFF -1
… (negative values) … (negative values)
$800001 -8,388,607 $80000001 -2,147,483,647
($800000) (8,388,608) ($80000000) (2,147,483,648)
$7FFFFF +8,388,607 $7FFFFFFF +2,147,483,647
… (positive values) … (positive values)
$000000 0 $00000000 0
Counts Format
The ASCII Count data format is a format that is characterized by an ASCII integer number (decimal from –
32767 to +32767 ; hexadecimal from $8001 to +$FFFF , then from $0000 to +$7FFF ) which represents a
compensated or raw-data value as it would be interpreted from an analog-to-digital (A/D) converter. This
Count format and value depends on the channel type which has been specified for that channel. For
example, if Channel 16 is assigned channel type 1 (thermocouple Type J with cold-junction compensation
and linearization), then the Count format and value for this channel would also be cold-junction
compensated and linearized. Conversely, if Channel 16 is assigned channel type 31 (thermocouple Type J
without temperature sensor adjustment – raw A/D data), then the Count format and value for this channel
would also be raw.
Note: If the ASCII Count format is specified as the data format, then the appropriate temperature
and volts data values will be interpreted as Count, and the Engineering Units engr parameter
will be ignored.
In the ASCII Count data format, both input and output data formats are valid for the following data only.
All other data under this Count option will be interpreted as Engineering Units.
• Temperature: For channels configured as thermocouples, the TempScan/1100 or MultiScan/1200
does not convert, but instead, keeps and returns all ASCII raw-data readings in its unconverted format,
as an ASCII integer from
–32767 to +32767 . The temperature format is as follows where x
represents an ASCII digit: ±xxxxx .
• Volts: For channels configured as thermocouples, the TempScan/1100 or MultiScan/1200 does not
convert, but instead, keeps and returns all ASCII raw-data readings in its unconverted format, as an
ASCII integer from
–32767 to +32767 . The volts format is as follows where x represents an ASCII
digit: ±xxxxx .