Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
6765 Float / 4 Old value float Parameter value of
type float before modifi‐
cation.
(Unit is corresponding
default unit. See A.9.3)
- - Read
only
6767 String / 32 Old value string Parameter value of
type string before mod‐
ification.
- - Read
only
6783 Unsigned / 2 New value un‐
signed8
Parameter value of
type unsigned8 after
modification.
- - Read
only
6784 Unsigned / 2 New value un‐
signed16
Parameter value of
type unsigned16 after
modification.
- - Read
only
6785 Unsigned / 4 New value un‐
signed32
Parameter value of
type unsigned32 after
modification.
- - Read
only
6787 Float / 4 New value float Parameter value of
type float after modifica‐
tion.
(Unit is corresponding
default unit. See Units
(Page 147))
- - Read
only
6789 String / 32 New value
string
Parameter value of
type string after modifi‐
cation.
- - Read
only
6805 Unsigned / 2 Initiator Host that initiated the
parameter change.
-
● 1: Transmitter internal
● 2: Communication
channel
● 3: Local display
● 4: USB
Read
only
A.9.11.3 FW update change log
Table A-138 FW update change log
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
6900 Unsigned / 2 Newest entry
number
Entry number of new‐
est entry. Older entries
have a smaller entry
number.
(Wrap around for 0 -
100).
- - Read
only
6981 Unsigned / 2 Entry number Selection of the entry
number.
- 0 - 20 Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 331
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