Contrec 212 - Page 43

212-M-V2.1
Communications 41
Register Name Value Note
US: 00 - kBTU/min
01 - kBTU/hour
02 - ton
03 - therm/min
04 - therm/hour
05 - KCal/hour
06 - MCal/hour
190 Volume flow unit SI: 00 - ltr/min
01 - m
3
/min
02 - m
3
/hour
US: 00 - gallon/min
01 - ft
3
/min
02 - ft
3
/hour
Notes:
FP This variable is represented in IEEE-754 Floating Point 4 byte
format and requires two 2 byte data registers used as Modicon's
floats:
IEEE-754 Modicon Registers
1st byte low byte (register X)
2nd byte high byte (register X)
3rd byte low byte (register X+1)
4th byte high byte (register X+1)
This means that two data registers must be read/written
to obtain/preset one data value.
LI This variable is represented as a long integer in 4 byte format
and requires two 2 byte data registers:
Long Integer Modicon Registers
1st byte (MSB) high byte (register X)
2nd byte low byte (register X)
3rd byte high byte (register X+1)
4th byte (LSB) low byte (register X+1)
This means that two data registers must be read/written
to obtain/preset one data value.