VEGA VEGABAR 64 Foundation Fieldbus User Manual
Page 54
Output variable
Output
-
Signal
digital output signal, Foundation Fieldbus protocol
-
Physical layer
according to IEC 61158-2
Channel Numbers
-
Channel 1
Primary Value
-
Channel 2
Secondary Value 1
-
Channel 3
Secondary Value 2
-
Channel 4
Temperature Value
Transmission rate
31.25 Kbit/s
Current value
10 mA, ±0.5 mA
Dynamic behaviour output
Run-up time approx.
10 s
90 %
100 %
10 %
t
t
T
A
t
t
S
2
1
Fig. 28: Sudden change of the process variable, dead time t
T
, rise time t
A
and step response time t
S
1
Process variable
2
Output signal
Dead time
≤ 150 ms
Rise time
≤ 100 ms (10 … 90 %)
Step response time
≤ 250 ms (ti: 0 s, 10 … 90 %)
Damping (63 % of the input variable)
0 … 999 s, adjustable
Additional output parameter - temperature
Processing is made via output signal HART multidrop, Profibus PA and Foundation Fieldbus
Range
-50 … +150 °C (-58 … +302 °F)
Resolution
1 °C (1.8 °F)
54
VEGABAR
64 • Foundation Fieldbus
10 Supplement
28259
-EN
-081209