Siemens SIMOCODE pro - 2 Communication; PROFIBUS Communication; Definitions

SIMOCODE pro - Communication
Function Manual, 11/2018, A5E40508495002A/RS-AC/003
13
Communication
2
2.1
PROFIBUS communication
2.1.1
Definitions
PROFIBUS DP
PROFIBUS bus system with the DP protocol (decentralized peripherals). The main task of
PROFIBUS DP is to manage the fast, cyclic data exchange between the central DP master
and the I/O devices.
PROFIBUS DPV1
PROFIBUS DPV1 is an extension of the DP protocol. It enables acyclic data exchange of
parameter, diagnostic, receive and test data.
DP master
A master with characteristics to EN 50 170, Volume 2, PROFIBUS with the DP protocol is
referred to as the DP master.
Class 1 master
A Class 1 master is an active station on PROFIBUS DP. It is characteristically used for cyclic
data exchange with other stations. Typical Class 1 masters include PLCs with a
PROFIBUS DP connection.
Class 2 master
A class 2 master is an optional station on the PROFIBUS DP.
Typical class 2 masters include:
● PC / PG devices with the SIMOCODE ES software
● SIMATIC PDM (PCS7)
● PC with SIMATIC powercontrol software (power management).
DPV1 slave
A slave operated on the PROFIBUS with the PROFIBUS DP protocol that behaves in
accordance with EN 50 170, Volume 2, PROFIBUS is referred to as a DPV1 slave.