Modbus Register Mapping - Siemens SITRANS F Coriolis FCT030 Function Manual

MODBUS commands

4.4 Modbus register mapping

Modbus Data type /
register Size in bytes
10307 Unsigned / 4 Modbus coil bit‐
10309 Unsigned / 2 Modbus coil
...
10399 Unsigned / 2 Modbus coil
If default value is "-" the command "Set to default" will not set this parameter to default.
1
4.4 Modbus register mapping
The device provides the possibility to map each existing parameter to a freely chosen Modbus
register for communication purposes over channel 1.
36
Parameter Description
Bit mask which is compared
mask 2 against the register value
specified with Modbus coil reg‐
ister 2 to determine the coil
value. If any bit of the register
value is set which is also set
in the bit mask then the coil
value is true otherwise false.
Output parameter that informs
length 2 about size in bytes of parame‐
ter that is specified by Modbus
coil address 2. Could be used
to identify the relevant bits of
the Modbus coil bitmask 2
Output parameter that informs
length 20 about the size in bytes of the
parameter that is specified by
Modbus coil address 20.
Could be used to identify the
relevant bits of the Modbus
coil bitmask 20
Default value Value range /
[units] Setting options
1
(units register)
0 0 - 4294967295 Read / write
-
-
FCT030 Modbus (From firmware 4.0)
Function Manual, 06/2018, A5E39931813-AB
Access lev‐
el
Read only
Read only