Siemens SITRANS F Series, Руководство по эксплуатации, Страница: 147 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
145
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
8015 Unsigned / 2 Pressure units Units for
pressure
values.
11
• 1: inH2O (inches of water at 68
°F)
•
2: inHg (inches of mercury at 0
°C)
• 3: ftH2O (feet of water at 68 °F)
•
4: mmH2O (millimeters of water
at 68 °F)
• 5: mmHg (millimeters of mercury
at 0 °C)
•
6: psi (pounds per square inch)
• 7: bar
•
8: mbar
• 9: gf/cm² (grams force per
square cm)
•
10: kgf/cm² (kilogram force per
square cm)
• 11: Pa (pascal)
•
12: kPa (kilopascal)
• 13: torr
•
14: atm (atmosphere)
• 170: cmH2O (centimeters of
water at 4 °C)
•
171: mH2O (meters of water at 4
°C)
• 172: cmHg (centimeters of mer-
cury at 0 °C)
•
173: lb/ft² (pounds per square
foot)
• 174: hPa (hectopascal)
•
176: kg/m² (kilograms per square
meter)
• 177: ftH2O (feet water at 4 °C)
•
178: ftH2O (feet water at 60 °F)
• 179: mHg (meters of mercury at
0 °C)
•
237: MPa (Megapascal)
238: in ftH2O (inches of water at
4 °C)
• 239: mmH2O (millimeters of
water at 4 °C)
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