Siemens SITRANS FST030 - Page 301

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
3416 Float / 4 Travel time
down path 1
Travel time of down‐
stream signal
- - Read
only
3418 Float / 4 Correlation fac‐
tor path 1
Correlation factor - - Read
only
3424 Unsigned / 2 Accepted burst
percentage
path 1
% of bursts accepted
(path 1).
- - Read
only
3425 Float / 4 Actual sensor
frequency path
1
Sensor frequency - - Read
only
3429 Float / 4 Upstream peak
amplitude path
1
Upstream signal peak
amplitude
- - Read
only
3427 Float / 4 Downstream
peak amplitude
path 1
Downstream signal
peak amplitude
- - Read
only
3431 Float / 4 Fluid refraction
angle path 1
Calculated fluid refrac‐
tion angle on path 1
(clamp-on only).
- - Read
only
3433 Float / 4 Lower sound
velocity limit
Minimum supported flu‐
id sound velocity (path
1)
- - Read
only
3435 Float / 4 Upper sound
velocity limit
Maximum supported
fluid sound velocity
(path 1)
- - Read
only
3437 Float / 4 Min acc travel
time
Minimum supported
transit-time (path 1)
- - Read
only
3439 Float / 4 Max acc travel
time
Maximum supported
transit-time (path 1)
- - Read
only
Table A-98 Path 2 diagnostics
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
3450 Float / 4 RxGain up path
2
Rx gain of upstream
signal
- - Read
only
3452 Float / 4 RxGain down
path 2
Rx gain of downstream
signal
- - Read
only
3454 Float / 4 SNR upstream
path 2
Signal to noise ration of
upstream signal
- - Read
only
3456 Float / 4 SNR down‐
stream path 2
Signal to noise ration of
downstream signal
- - Read
only
3458 Float / 4 Sound velocity
path 2
Sound velocity - - Read
only
3460 Float / 4 Flow velocity
path 2
Flow velocity - - Read
only
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 301