Siemens SITRANS F Series, Operating Instructions Manual, Page: 334 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
332
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
6247 Unsigned / 2 Alarm class Bit encoded selection
of alarm classes.
Applicable if simulation
mode = 2. Set bit
means alarm class
simulation activated:
Bit 0: Process value
alarm (PA)
Bit 1: Process value
warning (PW)
Bit 2: Maintenance
alarm (MA)
Bit 3: Maintenance
warning (MW)
Bit 4: Maintenance
required (MR)
Bit 5: Function check
(FC)
0 0 - 63 Read /
write
6249 Unsigned / 2 NAMUR status Bit encoded selection
of NAMUR status sig-
nals. Applicable if
simulation mode = 2.
Set bit means NAMUR
status signal simulation
activated:
Bit 0: Out of specifica-
tion (PA, PW)
Bit 1: Failure (MW)
Bit 2: Maintenance
required (MR, MD)
Bit 3: Function check
(FC)
0 0 - 15 Read /
write
A.9.11 Audit trail
A.9.11.1 Operating time
Table A- 136 Operating time
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
6160 Unsigned / 4 Operating time
total
Operating time of the
transmitter.
-
[h]
- Read
only
6162 Unsigned / 4 Operating time Operating time of the
transmitter since last
startup.
-
[h]
- Read
only