Siemens SITRANS FST030 - Page 303

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
3508 Float / 4 Sound velocity
path 3
Sound velocity - - Read
only
3510 Float / 4 Flow velocity
path 3
Flow velocity - - Read
only
3512 Float / 4 Delta time path
3
Delta time - - Read
only
3514 Float / 4 Travel time up
path 3
Travel time of up‐
stream signal
- - Read
only
3516 Float / 4 Travel time
down path 3
Travel time of down‐
stream signal
- - Read
only
3518 Float / 4 Correlation fac‐
tor path 3
Correlation factor - - Read
only
3524 Unsigned / 2 Accepted burst
percentage
path 3
% of bursts accepted
(path 3).
- - Read
only
3525 Float / 4 Actual sensor
frequency path
3
Sensor frequency - - Read
only
3529 Float / 4 Upstream peak
amplitude path
3
Upstream signal peak
amplitude
- - Read
only
3527 Float / 4 Downstream
peak amplitude
path 3
Downstream signal
peak amplitude
- - Read
only
3531 Float / 4 Fluid refraction
angle path 3
Calculated fluid refrac‐
tion angle on path 3
(clamp-on only).
- - Read
only
3533 Float / 4 Lower sound
velocity limit
Minimum supported flu‐
id sound velocity (path
3)
- - Read
only
3535 Float / 4 Upper sound
velocity limit
Maximum supported
fluid sound velocity
(path 3)
- - Read
only
3537 Float / 4 Min acc travel
time
Minimum supported
transit-time (path 3)
- - Read
only
3539 Float / 4 Max acc travel
time
Maximum supported
transit-time (path 3)
- - Read
only
Table A-100 Path 4 diagnostics
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
3550 Float / 4 RxGain up path
4
Rx gain of upstream
signal
- - Read
only
3552 Float / 4 RxGain down
path 4
Rx gain of downstream
signal
- - Read
only
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 303