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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
334
Operating Instructions, 08/2017, A5E37367739-AC
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 modi-
fication.
(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
unsigned8
Parameter value of
type unsigned8 after
modification.
-
-
Read
only
6784
Unsigned / 2 New value
unsigned16
Parameter value of
type unsigned16 after
modification.
-
-
Read
only
6785
Unsigned / 4 New value
unsigned32
Parameter value of
type unsigned32 after
modification.
-
-
Read
only
6787
Float / 4
New value float Parameter value of
type float after modifi-
cation.
(Unit is corresponding
default unit. See Units
(Page 140))
-
-
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 inter-
nal
•
2: Communication
channel
•
3: Local display
•
4: USB
Read
only