SMA DATA MANAGER M - Safety; Intended Use; Important Safety Instructions

3 Product Overview
SMA Solar Technology AG
Technical InformationSMAModbus-ennexOS-TI-en-1010
3.4.5 SMA Data Types and NaN Values
The following table shows the data types used in the SMA Modbus profile and compares these to possible NaN
values. The SMA data types are listed in the assignment tables in the Type column. The SMA data types describe the
data widths of the assigned values:
Type Explanation NaN value
S16 A signed word (16-bit) 0x8000
S32 A signed double word (32-bit) 0x8000 0000
STR32 32byte data field, in UTF8 format. ZERO
U16 An unsigned word (16-bit) 0xFFFF
U32 An unsigned double word (32-bit) 0xFFFF FFFF
U32 For status values, only the lower 24 bits of a double word (32-bit)
are used.
0xFFFF FD
U64 An unsigned quadruple word (64-bit) 0xFFFF FFFF FFFF
FFFF
3.4.6 SMA Data Formats
The following SMA data formats describe how SMA data is to be interpreted. The data formats are used, for example,
for the display of data or for its further processing. The SMA data formats are listed in the Format column of the
assignment tables.
Format Explanation
DURATION Time in seconds, in minutes or in hours, depending on the Modbus register
ENUM
or
TAGLIST
Coded numerical values. The breakdown of the possible codes can be found di-
rectly under the designation of the Modbus register in the assignment tables.
FIX0 Decimal number, commercially rounded, without decimal place.
FIX1 Decimal number, commercially rounded, one decimal place.
FIX2 Decimal number, commercially rounded, two decimal places.
FIX3 Decimal number, commercially rounded, three decimal places.
FIX4 Decimal number, commercially rounded, four decimal places.
FUNCTION_SEC The date saved in the Modbus register will be transmitted in the event of a
change to a function and starts this. After execution of the function, no status
value is set. A security question must be executed in the client software prior to
execution of the function.
FW Firmware version
HW Hardware version (e.g. 24)
IP4 4-byte IP address (IPv4) of the form XXX.XXX.XXX.XXX.
RAW Text or number. A RAW number has no decimal places and no thousand or
other separation indicators.