Status Display For The Lines - Siemens FDCIO223 Technical Manual

3.2.3.2

Status display for the lines

Building Technologies
Fire Safety
There are both red and green LEDs for each input/output and these are used to
indicate the status (LED 'I/O 1' and 'I/O 2'). Their meaning depends on how the
input/output is configured.
Input/output is configured as an input
(detector line or contact input)
Green Red
'I/O 1' / 'I/O 2' 'I/O 1' / 'I/O 2'
(Ref 10 / 9) (Ref 10 / 9)
Off Off
ON Off
Off ON
ON ON
Off Flashes
What the LEDs mean (detector line or contact input)
Input/output is configured as an output (control line)
Green Red
'I/O 1' / 'I/O 2' 'I/O 1' / 'I/O 2'
(Ref 10 / 9) (Ref 10 / 9)
Off Off
ON Off
Off ON
ON ON
Off Flashes
Flashes every Off
0.5 s
Off ON for 2 seconds
What the LEDs mean (control line)
Structure and function
State
Not active

No supply

Incorrectly configured

Standby
Alarm
Fault:
Open line

Short-circuit

Deviation in terms of monitoring

resistances (only in the case of a contact
input)
Triggered in inspection mode/test mode
State
Not active

No supply

Incorrectly configured

Standby
Output activated
Fault:
Open line

Short-circuit

Control line not calibrated

Inspection mode/test mode
Calibration of load resistances
Calibration of load resistances not permitted
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2015-10-06