
Modbus ad‐
dress
Data type /
Size [bytes]
Parameter
Description
Default value
[unit]
Value
range
Access
level
2145
Unsigned / 2 Zero Point Adjust Sta‐
tus
Status of the last zero point
adjustment performed
Every high bit ('1') represents
an error occurred in the last
zero point adjustment per‐
formed.
No high bits equals ok.
Bit 0 = Zero sigma limit ex‐
ceeded
Bit 1 = Zero offset limit excee‐
ded
Bit 2 = Quality of zero point
conditions
-
• 1
• 2
• 4
Read Only
2180
Unsigned / 2 Start Zero Point Ad‐
justment
Start automatic zero point
adjustment.
The automatic zero point ad‐
justment determines the ap‐
plication specific zero point
offset automatically.
Possible selections:
• 0: Idle
• 1: Running
• 2: Start
0
0 to 2
Read /
Write
1)
: See Sensor dimension dependent default settings (Page 140)
Table C-14
Modbus
Modbus ad‐
dress
Data type /
Size [bytes]
Parameter
Description
Default value
[unit]
Value
range
Access
level
527
Unsigned / 2 Float byte order
The float byte order used in
Modbus messages.
Selection 0: Byte order:
1-0-3-2
Selection 1: Byte order:
0-1-2-3
Selection 2: Byte order:
2-3-0-1
Selection 3: Byte order:
3-2-1-0
The first mentioned byte is
the first byte sent.
Byte 3 corresponds to the
left-most byte (MSB) of a 32
bit float in big endian format,
byte 0 corresponds to the
right-most byte (LSB).
3
0 to 3
Read /
Write
528
Unsigned / 2 Modbus Address
Set Modbus Device Address
1
1 to 247
Read /
Write
Modbus communication FCT010
C.4 Modbus holding registers tables
SITRANS MASS 2100 & FC300 (FCT010/DSL)
170
Operating Instructions, 06/2020, A5E39788682-AB