Vega VEGABAR 86 Operating Instructions Manual page 53

Min./Max. adjustment:
Ʋ Percentage value
Ʋ Pressure value
Zero/Span adjustment:
Ʋ Zero
Ʋ Span
Ʋ Difference between zero and span
Max. permissible Turn Down
Switch-on phase
Run-up time approx.
Output variable
Output
Ʋ Physical layer
Ʋ Bus specifications
Ʋ Data protocols
Max. transmission rate
Dynamic behaviour output
Dynamic characteristics depending on medium and temperature
100 %
Fig. 26: Behaviour in case of sudden change of the process variable. t
time
1 Process variable
2 Output signal
Dead time
Rise time
Step response time
Damping (63 % of the input variable)
VEGABAR 86 • Modbus and Levelmaster protocol
90 %
1 2
10 %
t
T
-10 ... 110 %
-20 ... 120 %
-20 ... +95 %
-120 ... +120 %
max. 120 % of the nominal range
Unlimited (recommended 20 : 1)
23 s
Digital output signal according to standard EIA-485
Modbus Application Protocol V1.1b3, Modbus over se-
rial line V1.02
Modbus RTU, Modbus ASCII, Levelmaster
57.6 Kbit/s
t
A
t
S
: dead time; t
T
≤ 50 ms
≤ 150 ms
≤ 200 ms (ti: 0 s, 10 ... 90 %)
0 ... 999 s, adjustable via menu item " Damping"
10 Supplement
t
: rise time; t : jump response
A S
53