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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
314
Operating Instructions, 08/2017, A5E37367739-AC
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
9403
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
10603
Float / 4
Current input
value
Input current value if
configured to current
input.
-
-
Read
only
10658
Unsigned / 2 Error status
Error status if config-
ured to current input.
-
•
Bit 0: Overflow (> 25
mA)
•
Bit 1: Underflow (< 0
mA)
•
Bit 2: Measured cur-
rent out of measuring
range
Read
only
9329
Unsigned / 2 Digital input
value
Input value if config-
ured to digital input.
-
0 - 1
Read
only