2
2.9
Local diagnostic and status indicators
Figure 2-4
Local diagnostic and status indicators on the IC220SDL840 module
Function identification: Dark red
0
PSDOR
D
1
IN1
2
1
FS
1
IN2
2
9
8
7
6
5
4
3
2
1
0
P
77221002
D
IN1
1
2
0
FS
IN2
1
2
1
P
Table 2-1
Local diagnostic and status indicators
D
Green LED
Diagnostics
OFF:
Communications power not present
Flashing at 0.5 Hz:
Communications power present, local bus not active
Flashing at 4 Hz:
Communications power present, error at the interface between previous and
flashing terminal (the terminals after the flashing terminal cannot be addressed).
(E.g., loose contact at the bus interface, terminal before the flashing terminal has
failed, another terminal was snapped on during operation (not permitted))
ON:
Communications power present, local bus active
FS
Red LED
Failure state
Flashing at 1 Hz:
Device not parameterized or parameterization was not accepted
ON:
Hardware fault
Communication to safe controller disabled and output driver enable reset
Observe the module startup time of approximately 16 s. During this time the D LED flashes
at 4 Hz and the bus cannot be started up.
2-10
User manual IC220SDL840 -
May 2018
GFK-2734