ABB AC 800M User Manual page 41

Section 2 Transmission Technology
Figure 8. PROFIBUS DP/PA Linking Device LD 800P
LD 800P performs the following tasks:
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For more details, please read the LD 800P product documentation.
3BDS009029R5001 B
Potential separation between the PROFIBUS DP and the PROFIBUS PA
Conversion of the RS 485 physical arrangement of the PROFIBUS DP to the
physical arrangement based on IEC 61158-2 of the PROFIBUS PA.
Support of all standardized PROFIBUS transmission rates from 45.45 kbit/s up
to 12Mbit/s
Automatic detection of transmission rate
Fully transparent in the PROFIBUS line
– No configuration and commissioning
– Direct access from PROFIBUS DP master to PROFIBUS PA slaves
– Support of all cyclic and acyclic PROFIBUS protocol services (DP/V1)
– No restriction in PROFIBUS data volume with full 244 Byte read/write
access to each PA slave
Optional PROFIBUS DP line redundancy
Power Link Modules integrate bus termination, galvanic isolation and power
supply
Powering of PROFIBUS PA segments without additional power supply
Optional Power Link Module with intrinsically safe interface [EEx ia] IIC
PROFIBUS DP/PA Linking Device LD 800P
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