Siemens SITRANS FST030 - Page 302

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
3462 Float / 4 Delta time path
2
Delta time - - Read
only
3464 Float / 4 Travel time up
path 2
Travel time of up‐
stream signal
- - Read
only
3466 Float / 4 Travel time
down path 2
Travel time of down‐
stream signal
- - Read
only
3468 Float / 4 Correlation fac‐
tor path 2
Correlation factor - - Read
only
3474 Unsigned / 2 Accepted burst
percentage
path 2
% of bursts accepted
(path 2).
- - Read
only
3475 Float / 4 Actual sensor
frequency path
2
Sensor frequency - - Read
only
3479 Float / 4 Upstream peak
amplitude path
2
Upstream signal peak
amplitude
- - Read
only
3477 Float / 4 Downstream
peak amplitude
path 2
Downstream signal
peak amplitude
- - Read
only
3481 Float / 4 Fluid refraction
angle path 2
Calculated fluid refrac‐
tion angle on path 2
(clamp-on only).
- - Read
only
3483 Float / 4 Lower sound
velocity limit
Minimum supported flu‐
id sound velocity (path
2)
- - Read
only
3485 Float / 4 Upper sound
velocity limit
Maximum supported
fluid sound velocity
(path 2)
- - Read
only
3487 Float / 4 Min acc travel
time
Minimum supported
transit-time (path 2)
- - Read
only
3489 Float / 4 Max acc travel
time
Maximum supported
transit-time (path 2)
- - Read
only
Table A-99 Path 3 diagnostics
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
3500 Float / 4 RxGain up path
3
Rx gain of upstream
signal
- - Read
only
3502 Float / 4 RxGain down
path 3
Rx gain of downstream
signal
- - Read
only
3504 Float / 4 SNR upstream
path 3
Signal to noise ration of
upstream signal
- - Read
only
3506 Float / 4 SNR down‐
stream path 3
Signal to noise ration of
downstream signal
- - Read
only
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
302 Operating Instructions, 08/2018, A5E37367739-AD