Siemens SINUMERIK 840D sl Function Manual page 183

05.08
A STOP D/E is triggered for an SPL crosswise data comparison error. SGE/SGA
are set into the safe state if an error is detected by the communication crosswise
data comparison.
Note
As a result of the two–channel structure of Safety Integrated, the machine
manufacturer must supply the SGE and SGA in both the NCK monitoring channel
and the drive monitoring channel.
The actual signal state of the SGE/SGA is displayed using the "Service display"
menu. Information regarding Safety Integrated data with the associated axis
names and the axis number are displayed in the "Service SI" window.
SGE/SGA are, for Safety Integrated, connected through PROFIBUS with the PRO-
FIsafe profile and I/O modules that are PROFIsafe–capable. Internal SGE/SGA
signals are accessed via the SPL (see Chapter 7.3 "Safe programmable logic
(SPL)").
Fig. 7-2
For instance, the following can be requested or signaled in each monitoring chan-
nel and for each/spindle with safety technology using SGE/SGA signals:
S Safety functions can be selected and deselected
S Limit values can be selected and changed–over
S States relating to safety operation can be fed back
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
PROFIBUS
with
PROFIsafe
External SGE/SGA via PROFIBUS with the PROFIsafe profile
Connecting Sensors/Actuators
7.1 Safety–related input/output signals
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