Siemens SITRANS F Series, Руководство по эксплуатации, Страница: 148 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
146
Operating Instructions, 08/2017, A5E37367739-AC
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
7700 Unsigned / 2 Temperature
units
Units for
tempera-
ture values.
32
• 32: °C (degrees Celsius)
•
33: °F (degrees Fahrenheit)
• 34: °R (degrees Rankine)
•
35: K (kelvins)
Read /
write
8556 Unsigned / 2 Length units Units for
length
values.
45
•
44: ft (feet)
•
45: m (meters)
•
47: in (inches)
•
48: cm (centimeters)
•
49: mm (millimeters)
Read /
write
8564 Unsigned / 2 Acceleration
units
Units for
accelera-
tion values.
172
• 171: ft/s² (feet per second
squared)
•
172: m/s² (meters per second
squared)
Read /
write
8321 Unsigned / 2 Totalizer 1 units Units for
volume
quantities
of totalizer
1 (totalizer
1 is config-
ured to
volume
flow).
41
• 40: US gallons
•
41: l (liters)
• 42: i.gal (Imperial gallons)
•
43: m³ (cubic meters)
• 46: BBL42 (1 barrel = 42 US
gallons)
•
110: bush (bushels)
• 111: yd³ (cubic yards)
•
112: ft³ (cubic feet)
•
113: in³ (cubic inches)
•
124: BBL31.5 (1 barrel = 31.5 US
gallons)
• 170: BBL31 (1 barrel = 31 US
gallons)
•
236: hl (hectoliters)
• 253: custom units (see Custom
volume units string (8452) / fac-
tor (8450))
Read /
write