Appendix C – Technical Data
C-2
NPBA-12 Installation and Start-up Guide
Fieldbus Link
Compatible Devices:
All devices compatible with the PROFIBUS-DP
and PROFIBUS-DPV1 protocols
Size of the Link:
127 stations including repeaters (31 stations and 1
repeater per segment)
Medium:
Shielded, twisted pair RS485 cable
•
Termination: built in the NPBA-12 Module
•
Specifications:
•
Maximum Bus Length (m):
Topology:
Multi-drop
Serial Communication Type:
Asynchronous, half Duplex
Transfer Rate:
9.6, 19.2, 44.45, 93.75, 187.5, 500, 1500, 3000, 6000,
or 12000 kbit/s
Protocol:
PROFIBUS-DP, PROFIBUS-DPV1
Parameter
Line A
PROFIBUS-DP
Line B
DIN 19245 Part 1
Unit
Impedance
135 to 165
(3 to 20 MHz)
100 to 130
(f > 100 kHz)
Ω
Capacitance
< 30
< 60
pF/m
Resistance
< 110
–
Ω
/km
Wire gauge
> 0.64
> 0.53
mm
Conductor area
> 0.34
> 0.22
mm
2
Transfer Rate (kbit/s)
≤
93.75
187.5
500
1500
3000
6000
12000
Line A
1200
1000
400
200
100
100
100
Line B
1200
600
200
–
–
–
–
Summary of Contents for NPBA-12
Page 1: ...ABB Drives Installation and Start up Guide PROFIBUS Adapter Module NPBA 12 ...
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Page 14: ...Chapter 2 Overview 2 4 NPBA 12 Installation and Start up Guide ...
Page 40: ...Appendix A PROFIBUS Parameters A 2 NPBA 12 Installation and Start up Guide ...
Page 48: ...Appendix C Technical Data C 4 NPBA 12 Installation and Start up Guide ...
Page 50: ...Appendix D Ambient Conditions D 2 NPBA 12 Installation and Start up Guide ...
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