Siemens SITRANS F Series, Руководство по эксплуатации, Страница: 313 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
311
Channel 2
Table A- 106 Channel 2
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
8803 Float / 4 Current output
value
Output current value if
configured to current
output.
- - Read
only
8828 Unsigned / 2 Error status Error status if config-
ured to current output.
-
•
Bit 0: Overflow
• Bit 1: Underflow
•
Bit 2: Fail mode acti-
vated
• Bit 3: Cable break
•
Bit 4: Output current
cannot be estab-
lished (read back de-
viation > 0.1 mA)
Read
only
8840 Unsigned / 2 Status output Status value if config-
ured to status output.
- 0 - 1 Read
only
8969 Float / 4 Pulse status
output
Amount done if config-
ured to pulse output.
- - Read
only
8972 Unsigned / 2 Error status Error status if config-
ured to pulse output.
-
•
Bit 0: The pulse put-
put has reached the
maximum pulse out-
put frequency
•
Bit 1: Fail mode is
activated
Read
only
8987 Unsigned / 4 Pulse counter Pulse output since
startup.
- - Read
only
8900 Float / 4 Frequency
output value
Frequency value if
configured to frequen-
cy output.
- - Read
only
8903 Unsigned / 2 Error status Error status if config-
ured to frequency out-
put.
-
• Bit 0: Overflow
•
Bit 1: Underflow
• Bit 2: Fail mode acti-
vated
Read
only