Profibus pa, 4 technical data – KROHNE H250 M40 PROFIBUS PA User Manual
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PROFIBUS PA
6
H250 M40 ESK4
www.krohne.com
03/2014 - 4002251801 - AD H250/M40 PROFIBUS R01 en
Device calibrated for Mass Flow
The calibration units are used as default units.
Device calibrated for Level
The default unit for level is [%]. Calibration unit is used as default unit for board temperature.
2.4 Technical data
Slot
Slot
Slot
Slot
Module type
Module type
Module type
Module type
Measuring data
Measuring data
Measuring data
Measuring data
1
1
AI-FB
Volume flowrate
Mass flowrate (Default setting)
Board temperature
2
Totalizer-FB
Totalized volume flowrate
Totalized mass flowrate (Default setting)
3
Totalizer-FB
Totalized volume flowrate (Default setting)
Totalized mass flowrate
1 Selection of measuring data can be changed by modifying the channel parameter via acyclic PROFIBUS services.
Slot
Slot
Slot
Slot
Module type
Module type
Module type
Module type
Measuring data
Measuring data
Measuring data
Measuring data
1
1
AI-FB
Level (Default setting)
Board temperature
2
Totalizer-FB
2
Totalized volume flowrate (Default setting)
Totalized mass flowrate
3
Totalizer-FB
2
Totalized volume flowrate
Totalized mass flowrate (Default setting)
1 Selection of measuring data can be changed by modifying the channel parameter via acyclic PROFIBUS services.
2 Totalizing is not active if the device is calibrated for level measurement.
Hardware
Type
PROFIBUS MBP interface according to IEC 61158-2 with 31.25 kbit/s;
voltage mode (MBP = Manchester Coded Bus Powered)
Polarity
Independent of polarity at electrical connection
Base current
16 mA
FDE
Separate fault disconnection electronics provided
(FDE = Fault Disconnection Electronics)
Max. error current
23 mA
Start current after 10ms
Lower than base current
Electrical connections
Device power supply
Bus powered 9...32 VDC - not intrinsically safe
Bus powered 9...24 VDC - intrinsically safe
Basic current
16 mA
Maximum error current
23 mA
Start current after 10 ms lower than basic current
Polarity sensitivity
No
Minimum cycle time
250 ms
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