Cerabar M PMC51, PMP51, PMP55
Endress+Hauser 15
Output
Output signal
• 4 to 20 mA analog, 2-wire
• 4 to 20 mA with superimposed digital communication protocol HART 6.0, 2-wire
• Digital communication signal PROFIBUS PA (Profile 3.02)
• Digital communication signal FOUNDATION Fieldbus
Output Option
1)
4 to 20mA 1
4 to 20mA HART 2
PROFIBUS PA 3
FOUNDATION Fieldbus 4
1) Product Configurator, "Output" ordering feature
Signal range 4 to 20 mA
4 to 20 mA Analog, 4 to 20 mA HART: 3.8 to 20.5 mA
Signal on alarm
As per NAMUR NE 43
• 4 to 20 mA Analog:
• Signal overshoot: > 20.5 mA
• Signal undershoot: < 3.8 mA
• Min Alarm (3.6 mA)
• 4 to 20 mA HART:
Options:
• Max. alarm: can be set from 21 to 23 mA (factory setting: 22 mA)
• Hold measured value: last measured value is held
• Min. alarm: 3.6 mA
• PROFIBUS PA: can be set in the Analog Input block
Options: Last Valid Out Value (factory setting), Fail-safe Value, Status Bad
• FOUNDATION Fieldbus: can be set in the Analog Input block
Options: Last Good Value, Fail-safe Value (factory setting), Wrong Value
Load - 4 to 20 mA Analog
4...20 mA HART
U – 11.5 V
23 mA
[ ]W
30
20
11.5
40 45
1239
1456
804
369
£
U
[V]
1
2
R
L
max
3
R
L
max
A0023090
1 Supply voltage 11.5 to 30 V DC for intrinsically safe device versions (not for analog)
2 Supply voltage 11.5 to 45 V DC (versions with plug-in connector 35 V DC) for other types of protection and
for uncertified device versions
3 R
Lmax
Maximum load resistance
U Supply voltage
When operating via a handheld terminal or via a PC with an operating program, a minimum
communication resistance of 250 Ω must be taken into account.
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