Siemens SITRANS F Series, Operating Instructions Manual, Page: 238 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
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Operating Instructions, 08/2017, A5E37367739-AC
Channel 3 discrete input settings
Table A- 58 Channel 3 discrete input settings
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
9131 Unsigned / 2 Input leading
edge function
Select the functionality
for the leading edge of
the active discrete
input signal.
0
• 0: Off
•
6: Reset totalizer 1
• 7: Reset totalizer 2
•
8: Reset totalizer 3
• 9: Reset all totalizers
•
10: Start zero point
adjustment
• 11: Force outputs
•
12: Freeze process
values
• 13: Stop forcing out-
puts
•
14: Unfreeze process
values
Read /
write
9132 Unsigned / 2 Input trailing
edge function
Select the functionality
for the trailing edge of
the active discrete
input signal.
0
•
0: Off
•
6: Reset totalizer 1
•
7: Reset totalizer 2
•
8: Reset totalizer 3
•
9: Reset all totalizers
•
10: Start zero point
adjustment
•
11: Force outputs
•
12: Freeze process
values
•
13: Stop forcing out-
puts
•
14: Unfreeze process
values
Read /
write