Siemens SIMATIC ET 200S Manual page 150

Commissioning and Diagnostics
Analog electronic modules
SF
Group error
(red)
Figure 6-10 LEDs on the analog electronic modules
1Count 24V/100kHz
SF
Group
error (red)
UP
DN
Status indicator
counting direction
(green)
8
4
Status indicator for
digital input/digital
output (green)
Figure 6-11 LEDs on the 1Count 24V/100kHz
6-16
LED Meaning
SF
On
No parameter as-
signment or incor-
rect module inser-
ted. No load vol-
tage. There is a
diagnostic mes-
sage.
LEDs
SF UP DN 4 8
On
On
On
On
On
What to do
Check the para-
meter assign-
ment. Check the
load voltage. Eva-
luate the diagno-
sis.
Meaning
Check the parameter
No parameter assign-
ment. There is a dia- assignment. Evaluate
gnostic message. the diagnosis.
Status of the coun-
ter's low bit if the
counter is counting
up
Status of the co-
unter's inverted
low bit if the coun-
ter is counting
down
DO (direct control,
comparator out-
put) activated
DI (HW gate, syn-
chronization,
latch) activated
ET 200S Distributed I/O System
What to do
EWA-4NEB780602402-09