User`s manual

6-2 Series 90™-30 CPU with Embedded PROFIBUS Interface – November 2004 GFK-2334A
6
PROFIBUS CPU367 LEDs
LED Patterns Before and During PROFIBUS CPU367 Configuration
SYS LED
Color Indication
Flashing Green This LED flashes green for two seconds at system startup
Off PROFIBUS slave is not configured
COM LED
Off The PROFIBUS slave does not use the COM LED, except when loading
firmware and to indicate it is not configured. This LED is normally off.
Flashing Green PROFIBUS slave is not configured
Note: When loading firmware, the module is placed in the System Configuration mode.
When in this mode, the COM and SYS LEDs flash red alternately.
LED Patterns After PROFIBUS CPU367 is Configured
SYS LED
Color Indication
Red Indicates one of the following conditions:
 The slave is not being scanned by its PROFIBUS master.
 The slave CPU is in Stop/No IO or Stop/Faulted mode.
 The slave is faulted.
Flashing Red/Green
alternately
The slave is being scanned by its PROFIBUS master, the master is in
Clear mode, and the slave CPU is in Stop/IO Enabled or Run/IO Enabled
mode.
Green The slave is being scanned by its PROFIBUS master, the master is in
Operate mode, and the slave CPU is in Stop/IO Enabled or Run/IO
Enabled mode.
Flashing Green This LED flashes green for two seconds at system startup
COM LED
Off This LED is normally off.