Siemens SITRANS FST030 - Page 148

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
● 171: BBL31/min (1 barrel = 31 US
gallons)
● 172: BBL31/h (1 barrel = 31 US
gallons
● 173: beer barrel per day
● 235: gal/d (US gallons per day)
● 253: custom units (see Custom
volume flow units string (8470) /
factor (8468))
7400 Unsigned / 2 Mass flow units Units for
mass flow
values.
75
● 70: g/s (grams per second)
● 71: g/min (grams per min)
● 72: g/h (grams per hour)
● 73: kg/s (kilograms per second)
● 74: kg/min (kilograms per minute)
● 75: kg/h (kilograms per hour)
● 76: kg/d (kilograms per day)
● 77: t/min (1 t = 1000 kg)
● 78: t/h (1 t = 1000 kg)
● 79: t/d (1 t = 1000 kg)
● 80: lb/s (pounds per second)
● 81: lb/min (pounds per minute)
● 82: lb/h (pounds per hour)
● 83: lb/d (pounds per day)
● 84: STon/min (1 STon = 2000 lb)
● 85: STon/h (1 STon = 2000 lb)
● 86: STon/d (1 STon = 2000 lb)
● 87: T/h (1 T = 2240 lb)
● 88: T/d (1 T = 2240 lb)
● 253: custom units (see Custom
mass flow units string (8458) /
factor (8456))
Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
148 Operating Instructions, 08/2018, A5E37367739-AD