Siemens SITRANS F M TRANSMAG 2, Operating Instructions Manual, Page: 87 / 114

Parameters
SITRANS F M TRANSMAG 2
Operating Instructions, 11/2009, A5E00102775-07
85
4.1.4
Split mode The split mode divides the measuring
range into two domains:
•
Domain 1 from 0 to
’Split value’
•
Domain 2 from ’Split
value’ to ’URV’
(upper range value, menu3.1.2)
At digital outputs 1 or 2, it is possible to
indicate whether the current measured
value is within domain 1.
To do this, the function ’Split value active’
must be set (menu 4.2.1 and 4.3.1)
Inactive
•
Inactive
•
Active
Split value End value of domain 1 (only when ’Split
mode = active’)
URV (menu
3.1.2)
Depends on the nominal
width (corresponding to
0.25 to 12 m/s, <URV)
4.1 PROFIBUS
3
PROFIBUS communication
4.1.1 Bus Address PROFIBUS address 126 1 to 126
4.1.2 Ident-Nr. Selection of appropriate device database
file (GSD)
Manufact.spec. •
Profile spec.
•
Manufact.spec.
4.2 Digit.Output
1
Frequency or pulse signal for flow or
alarm signal
4.2.1 Function Assignment of a function to digital output
1
’Split value active’: the active output
indicates a current flow value in the 0 to
’Split value’ range (not effective for
PROFIBUS).
Pulse •
Pulse, Frequency,
•
Alarm, Flow direction
forw.
•
Flow min, Flow max,
Flow min/max,
•
Total. forw. max,
•
Total. rev. min,
•
Total. net max,
•
Total. net min
•
Split value active,
•
No function
4.2.2 Signal Type Definition of signal logic for active event Passive-pos. •
Active-pos., 1, 2
•
Active-neg., 1, 2
•
Passive-pos.
•
Passive-neg.
4.2.3 Pulse Rate
Engr. Unit
Pulse Rate Number of pulses per unit of quantity
(only effective with "Pulse" function)
Engineering unit of quantity to which the
number of pulses refers
Number of pulses per unit of quantity
DN1...12: Imp/l
>DN12: Imp/m
3
Depending on
the nominal
width 10Imp/l...
1Imp/m
3
•
pulses/l, m 3 , Ml, ft 3 ,
Gal, MGal, ImpGal,
Mimp• Gal, kg, t, lb,
•
0.01 ... 9999
pulses/unit
4.2.4 Pulse Width (only with "Pulse" function) +0.1 ms 0.1 ... 2000 ms
4.2.5 Fullsc. Freq Frequency output at full scale flow value
at digital output 1 (only effective for
"Frequency" function)
10000 Hz
2 ... 10000 Hz