Pilz ST SB DP S, SW paket PROFIBUS-DP - Manual (Page 9)

PROFIBUS-DP-Slave Operating Manual 2-1
This software package connects the PSS(1) DP-S module or compact
programmable safety system PSS SB 3006 DP-S to PROFIBUS-DP. The
PSS connection is in accordance with PROFIBUS specification EN 50170
Volume 2.
Software package
Data exchange via PROFIBUS is a Master-Slave communication. The
maximum length of data to be exchanged is defined in the master data file
(see file PILZ2500.GSD on the disk supplied). Parameters must be set for
the Slave prior to communication. For example, parameters describe
configuration data, the length of input/output data, station address, etc.
Data cannot be exchanged until the Master has received the parameter
data record.
The setting of parameters on the PROFIBUS-DP-Slave is supported by
standard function blocks. All the required parameters are entered in one
data block.
The programmable control systems PSS have been designed for use in
plant and machinery safety circuits. They consist of a failsafe (FS) section
and a standard (ST) section.
Fig. 2-1: Structure of the PSS
Steuerung von
sicherheitsgerichteten
Aufgaben
z. B.: NOT-AUS usw.
Steuerung und
Regelung von
nicht sicherheitsgerichteten
Aufgaben
z. B.: Diagnose usw.
Fail-safe-
Teil
Standard-
Teil
PSS
Failsafe
Section
Standard
Section
Control and monitoring of
safety-related
tasks
e.g.: E-STOP circuits etc. Control of
non-safety-related
tasks
e.g.: diagnostics etc.
This software package is designed for use in the standard section of a
programmable control system PSS.
Overview