AB Quality GuardPLC 1800 Manuel d'instructions d'installation - Page 17

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Indicator
State
FAULT
On
Flashing
Off
OSL
Flashing
BL
Flashing
Controller status can be interrogated through the programming software. For more information, refer to the
GuardPLC™ System User Manual (1753-UM001).
Communication Display
Communication via GuardPLC Ethernet is indicated by two small LEDs integrated
into all connecting sockets.
LED
Status
Green
On
Flashing
Off
Yellow
On
Flashing
Additional non-safety related communication occurs on the field buses and is
indicated by the LEDs.
LED
Connection
Green
COMM 1
COMM 2
COMM 3
Condition
• The routine (logic) has caused an error.
• The controller configuration is faulty.
• The upload of a new operating system was not successful and the operating
system is corrupted.
An error has occurred during a Flash ROM write cycle.
One or more I/O errors have occurred.
None of the above errors has occurred.
Emergency Operating System Loader is active.
Boot Loader unable to load operating system or unable to start COMM operating
system loader.
Condition
Full-duplex operation
Collision
Half-duplex operation, no collision
Connection established
Interface activity
Condition
RS485 interface, field bus active
Unassigned
Unassigned
GuardPLC™ 1600 Controllers
Publication 1753-IN001B-EN-P - March 2004
17