Trane E50 Series Installation, Operation And Maintenance Manual page 26

M M o o d d b b u u s s P P o o i i n n t t M M a a p p p p i i n n g g
The following table lists the addresses assigned to each data point. For floating point format
variables, each data point appears twice because two 16-bit addresses are required to hold a 32-
bit float value.
Table 3. Assigned Addresses
R/W
NV
Format
Units
Scale Factor
Range
26
R=read only; R/W=read from either int or float formats, write
only to integer format.
Value is stored in non-volatile memory. The value will still be
available if the meter experiences a power loss and reset.
UInt: Unsigned 16-bit integer.
SInt: Signed 16-bit integer.
ULong: Unsigned 32-bit integer; Upper 16-bits (MSR) in lowest-
numbered / first listed register (001/002 = MSR/LSR).
Float:32-bit floating point; Upper 16-bits (MSR) in lowest-
numbered / first listed register (257/258 = MSR/LSR). Encoding is
per IEEE standard 754 single precision.
Lists the physical units that a register holds.
Some Integer values must be multiplied by a constant scale factor
(typically a fraction), to be read correctly. This is done to allow
integer numbers to represent fractional numbers.
Defines the limit of the values that a register can contain.
BAS-SVX073C-EN