Siemens SITRANS F Series, Руководство по эксплуатации, Страница: 154 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
152
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
9493 Unsigned / 2 Volume units
CH4
Units for
volume
quantities
related to
CH4 if in
pulse
mode.
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
9492 Unsigned / 2 Mass units CH4 Units for
mass quan-
tities relat-
ed to CH4
if in pulse
mode.
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
9494 Unsigned / 2 Standard vol-
ume units CH4
Units for
standard
volume
quantities
related to
CH4.
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
8470 String / 8 Custom volume
flow units string
User spe-
cific string
for volume
flow values.
-------- - Read /
write