Dp-V0 Communication; Overview; Profibus Dp; Service Access Points - ABB RPBA-01 User Manual

Profibus dp adapter module

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DP-V0 communication

This chapter describes the PROFIBUS messaging used in the

communication with the drive when the RPBA-01 module is in DP-

V0 mode.

The RPBA-01 module supports the PROFIBUS-DP protocol

according to EN 50170 standard. PROFIBUS DP is a distributed

I/O system which enables the master to use a large number of

peripheral modules and field devices. The data transfer is mainly

cyclic: the master reads the input information from the slaves and

sends the output information back to the slaves.

The PROFIBUS DP protocol uses so-called PPOs

(Parameter/Process Data Objects) in cyclic communication. See

Figure 6

The services of the PROFIBUS Data Link Layer (Layer 2) are

used by PROFIBUS DP through Service Access Points (SAPs).

Precisely defined functions are assigned to individual SAPs.

For further information on Service Access Points, refer to the

manual of the PROFIBUS master, PROFIdrive – The PROFIBUS

Profile for Adjustable Speed Drives (version 2.0), or the EN 50170

standard.

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for the different PPO types and their composition.

DP-V0 communication

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