Siemens ISI EN 50295 Brochure page 42

AS-Interface Slaves
I/O modules for operation in the field
Introduction
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Function
AS-Interface compact modules features comprehensive diag-
nostic indication. This supports diagnosis at a glance.
The status of a module is either displayed via two LEDs or one
dual LED with continuous or flashing light.
LED diagnostic indication of the K60 compact module
6
LED diagnostic indication of the K45 compact module
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Compact modules of Series K60 have three LEDs for diagnostic
indication.
Compact modules of Series K45 have one single and one dual
LED (two-color LED) for status and diagnostic indication.