Diagnostics / service
8.4 Diagnostics with MSS ES
Modular Safety System 3RK3
262 System Manual, 10/2008, 926 2530-02 DS 02
Symbol Color Meaning
Green Function output active
Blue Function output inactive
8.4.2.2 Element messages
The menu command "Target system" > "Diagnostics logic" > "Element messages" shows the
messages for a function that is selected in the logic diagram. You can monitor status
messages of several functions simultaneously.
Requirements
● The safety relay is opened online.
● The logic diagram with the safety circuit is active.
● At least one function must be selected.
Reference
The element messages can be read out from the user program.
For additional information, refer to the manual
"3RK3 Modular Safety System"
.
EMERGENCY STOP messages
The monitoring function supports the following messages:
General
Status Symbol Meaning
Startup test required Yellow During the paramaterized startup test, this message is set after every restart
until the user actuates the connected sensor at least once.
Discrepancy condition violated Red is set if:
• The signal states at the inputs to be monitored vary after expiry of the
discrepancy time
• The signal states of all inputs to be monitored had not all previously
been reset simultaneously to the value "0" when they are set to "1"
Input
Status Symbol Meaning
Cross-circuit at input x Red A cross-circuit was detected at input x.