Siemens SITRANS F series Operating Instructions Manual page 309

Table A- 100 Path 5 diagnostics
Modbus Data type /
register Size in bytes
3600 Float / 4
3602 Float / 4
3604 Float / 4
3606 Float / 4
3608 Float / 4
3610 Float / 4
3612 Float / 4
3614 Float / 4
3616 Float / 4
3618 Float / 4
3624 Unsigned / 2
3625 Float / 4
3629 Float / 4
3627 Float / 4
3631 Float / 4
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
Parameter Description
RxGain up path Rx gain of upstream
5 signal
RxGain down Rx gain of downstream
path 5 signal
SNR upstream Signal to noise ration
path 5 of upstream signal
SNR down- Signal to noise ration
stream path 5 of downstream signal
Sound velocity Sound velocity
pah 5
Flow velocity Flow velocity
path 5
Delta time path Delta time
5
Travel time up Travel time of up-
path 5 stream signal
Travel time Travel time of down-
down path 5 stream signal
Correlation Correlation factor
factor path 5
Accepted burst % of bursts accepted
percentage (path 5).
path 5
Based on various di-
agnostic input (i.e.
correlation strength,
gain level, SNR, etc.)
the meter may reject
specific up/down re-
ceived sets or bursts.
The percentage of
accepted bursts is one
measure of the appli-
cation's health.
Actual sensor Sensor frequency
frequency path
5
Upstream peak Upstream signal peak
amplitude path amplitude
5
Downstream Downstream signal
peak amplitude peak amplitude
path 5
Fluid refraction Calculated fluid refrac-
angle path 5 tion angle on path 5
(clamp-on only).
A.9 Modbus holding registers tables
Default value Value range /
[unit] Setting options
(unit register)
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
Modbus communication
Access
level
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
Read
only
307