Siemens SITRANS FST030 - Page 154

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
8422 Unsigned / 2 Totalizer 2 units Units for
standard
volume
quantities
of totalizer
2 (totalizer
2 is config‐
ured to
standard
volume
flow).
171
● 166: Nm³ (normal cubic meters)
● 167: Nl (normal liters)
● 168: Sft³ (standard cubic feet)
● 171: Sl (standard liters)
● 172: Sm³ (standard cubic meters)
Read /
write
8521 Unsigned / 2 Totalizer 3 units Units for
volume
quantitites
of totalizer
3 (totalizer
3 is config‐
ured to vol‐
ume 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) / factor
(8450))
Read /
write
8520 Unsigned / 2 Totalizer 3 units Units for
mass quan‐
tities of to‐
talizer 3 (to‐
talizer 3 is
configured
to mass
flow).
61
● 60: g (grams)
● 61: kg (kilograms)
● 62: t (1 t = 1000 kg)
● 63: lb (pounds)
● 64: STon (1 STon = 2000 lb)
● 65: T (1 T = 2240 lb)
● 125: oz (ounces)
● 253: custom units (see Custom
mass units string (8476) / factor
(8474))
Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
154 Operating Instructions, 08/2018, A5E37367739-AD