SIEMENS
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Siemens IK PI · 2015
3
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Technical specifications
(continued)
PROFIBUS
Electrical networks (PROFIBUS PA)
Active field distributors
Active field distributor AFDiS
General data
Connection of field devices
• Standard-compliant field devices
for PROFIBUS PA or FOUNDATION
Fieldbus H1
• Max. 6 per AFDiS
• Max. 31 per fieldbus segment
•
Operating environment up to Zone
1
oder 21; Class I Zone 1
• The max. current consumption of all
fieldbus components of the fieldbus
segment is 1 A
Degree of protection
IP66
Voltages, currents, potentials
Power supply
Via bus, no auxiliary power necessary
Rated supply voltage,
permissible range
16 ... 32 V DC
Reverse polarity protection
(together with FDC 157)
Yes; up to 1 A
Overvoltage protection
No
Current consumption
• At 28 V input voltage
64 mA + (0.838 x aggregate current
of all field devices)
• At 24 V input voltage
67 mA + (1.008 x aggregate current
of all field devices)
• At 20 V input voltage
74 mA + (1.246 x aggregate current
of all field devices)
Power loss
Min. 1.4 W; max. 5.9 W
Grounding
Direct, via connecting bar
Electrical isolation between
main line and spur lines
Yes
Test voltage
2550 V DC, 2 s
Connections, interfaces
Main line
Number of connections
2
Interfaces
PROFIBUS PA and
FOUNDATION Fieldbus H1
Automatic bus terminator
Yes
Spur cables
Number of connections
6
Short-circuit-proof
Yes
Intrinsically-safe acc. to FISCO
Yes
Current I
max
• on spur line S1
60 mA
• on spur line S2 to S6
40 mA
• in total for all field devices
180 mA
Short-circuit current (test current)
5 mA
Debounce logic
Yes
No-load voltage
Max. 15.3 V
Current output to field devices
Max. 260 mA
Status, interrupts, diagnostics
Status indicator
Yes
Diagnostics function
Yes
Diagnostics LED
Yes
Interrupts
No
Climatic conditions
Permissible operating temperature
-40 ... +70 °C
Permissible storage/transport
temperature
-40 ... +85 °C
Relative humidity during operation
Max. 95 %
Approvals for potentially explosive
atmospheres
• Gas
Zone 1 and Zone 2
• Dust
Zone 21 and Zone 22
Dimensions and weight
Dimensions (W x H x D) in mm
380 x 85 x 170
Weight
4 500 g
Active field distributor AFDiS
© Siemens AG 2014