Modbus Holding Registers - Siemens SITRANS F M MAGFLO series Operating Manual

Modbus RTU RS-485
6. Modbus holding
registers
6.

Modbus holding registers

In the following the holding registers for the USM II Modbus RTU module are described.
Figure:
Holding registers memory map
The minimum value of a writable „holding register" value can be read by adding 10000 to the
address of the value.
The maximum value of a writable „holding register" value can be read by adding 20000 to the
address of the value.
Where the value is not directly applicable, the min./max. limit shown will be based on the data
type - e.g. a „WORD-type" value will show the limits 0-65535 - even though some of these values
are not allowed.
Min./max. values do not apply to all datatypes (e.g. strings). Reading min./max. value for such
„holding registers" will return zero-values.
SFIDK.PS.023.D2.02
0
500
Comm. settings
600
Info/status
700
2000
Application settings
3300
10000
Min. values
20000
Max. values
30000
65535
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