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Transmitter
PROFIBUS PA:
Pulse Passive:
Intrinsically safe (IS) outputs are only available in combination with selecting Ex approval
of the device, see Operating Instructions A5E52595189, chapter Ex approval.
13.4.4 PROFIBUS PA communication
PROFIBUS PA interface of SITRANS FC is based on PROFIBUS PA protocol (Profile
PROFIBUS PA
Revision R3.02 Compliant) and standard IEC61158, for details of instrumentation see
interface
website of the PROFIBUS/PROFINET organization (https://www.profibus.com/).
13.4.4.1 Output signals PROFIBUS PA
Digital communication signal based on PROFIBUS PA protocol.
Maximum voltage and correct polarity must be observed for wiring.
PROFIBUS PA
output signals
Power supply
Current draw
SITRANS FC
Fig. 87: PROFIBUS PA connection
①
②
③
④
⑤
Tab. 37: PROFIBUS PA cable and transmissible length
PROFIBUS PA
cable
Type of cable
Type A: Individually-shielded
twisted pair cable
For further details, see applicable Function Manual (FM) A5E52748624.
Default
PROFIBUS PA
setting
Passive pulse output
(only for calibration)
Maximum load current
Power supply
Maximum pulse rate
Frequency range
PA communication
Pulse / Frequency output (only for calibration)
Profibus+
Profibus-
PROFIBUS PA
Terminator
DP/PA-Coupler
PROFIBUS DP
Host
Value
9 – 32 V
DC
15 mA (maximum)
Cable
specifications
#18AWG
(0.82 mm²)
Value
≤ 200 mA
≤ 30 V
DC
10000 pulses/s
0 – 12.5 kHz
A5E52748387-AA, 2023/09
FC7x0
Wiring
Max. length of cable
(reference value)
1,900 m
123 / 180
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