3
System Description
EDBC250SBC |1.1
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3.5.3
LED "IO"
Every I/O module has an LED labeled "IO". It indicates the state of the module's I/Os. Refer to
the I/O module sections in this manual to know which states of a module are monitored and
indicated.
3.5.4
LED "Power"
An LED labeled "Power" is located on every module that has a power supply connector (e.g. for
digital outputs). It indicates the state of the Safety-I/O module's I/O power supply.
State
LED flash code
Bedeutung
On
Green, On
24 V DC supply ok
Off
Off
24 V DC supply not ok
