Siemens SITRANS FST030 - Page 304

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
3554 Float / 4 SNR upstream
path 4
Signal to noise ration of
upstream signal
- - Read
only
3556 Float / 4 SNR down‐
stream path 4
Signal to noise ration of
downstream signal
- - Read
only
3558 Float / 4 Sound velocity
path 4
Sound velocity - - Read
only
3560 Float / 4 Flow velocity
path 4
Flow velocity - - Read
only
3562 Float / 4 Delta time path
4
Delta time - - Read
only
3564 Float / 4 Travel time up
path 4
Travel time of up‐
stream signal
- - Read
only
3566 Float / 4 Travel time
down path 4
Travel time of down‐
stream signal
- - Read
only
3568 Float / 4 Correlation fac‐
tor path 4
Correlation factor - - Read
only
3574 Unsigned / 2 Accepted burst
percentage
path 4
% of bursts accepted
(path 4).
- - Read
only
3575 Float / 4 Actual sensor
frequency path
4
Sensor frequency - - Read
only
3579 Float / 4 Upstream peak
amplitude path
4
Upstream signal peak
amplitude
- - Read
only
3577 Float / 4 Downstream
peak amplitude
path 4
Downstream signal
peak amplitude
- - Read
only
3581 Float / 4 Fluid refraction
angle path 4
Calculated fluid refrac‐
tion angle on path 4
(clamp-on only).
- - Read
only
3583 Float / 4 Lower sound
velocity limit
Minimum supported flu‐
id sound velocity (path
4)
- - Read
only
3585 Float / 4 Upper sound
velocity limit
Maximum supported
fluid sound velocity
(path 4)
- - Read
only
3587 Float / 4 Min acc travel
time
Minimum supported
transit-time (path 4)
- - Read
only
3589 Float / 4 Max acc travel
time
Maximum supported
transit-time (path 4)
- - Read
only
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
304 Operating Instructions, 08/2018, A5E37367739-AD