
Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
310
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
3280
Float / 4
DSL temp min
value
Warranty pointer for
DSL temperature.
Minimum DSL temper-
ature encountered
during the device life-
time.
200.0
[°C]
(1001)
-200.0 to +800.0
Read /
write
3282
Float / 4
DSL temp max
value
Warranty pointer for
DSL temperature.
Maximum DSL tem-
perature encountered
during the device life-
time.
-200.0
[°C]
(1001)
-200.0 to +800.0
Read /
write
A.9.7.4
Inputs and outputs
General
Table A- 105 General
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
8799
Unsigned / 2 Reset pulse
counter
Command to reset
pulse counters.
0
•
1: Reset all pulse
totalizers and pulse
counts
•
2: Reset pulse total-
izer in channel 2
•
3: Reset pulse total-
izer in channel 3
•
4: Reset pulse total-
izer in channel 4
Write
only