Siemens ET 200S Manual page 141

1SSI
SF
Group
error (red)
DN
UP
Status indicator
change in sensor
value (green)
7
CMP
Status indi- Status in-
cator for digi- dicator re-
tal input sult of
(green) compari-
son
Figure 6-12 LEDs on the EM 1SSI
1STEP 5V/204kHz
SF
Group
error (red)
RDY
REF
Status Ready
indicator for posi-
for digital tioning
input job
REF (green)
(green)
3 POS
Status indi- Positio-
cator for digi- ning in
tal input DI operation
(green) (green)
Figure 6-13 LEDs on the EM 1STEP 5V/204kHz
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
LEDs
SF UP DN 7 CMP
No parameter as-
On
signment. There is
a diagnostic mes-
sage.
At value change
from smaller to lar-
On ger sensor values
(including zero-
crossing)
At value change
from larger to
On smaller sensor va-
lues (including
zero-crossing)
On
DI (latch) activated
At comparator re-
sult CMP 1
On
LEDs
SF REF RDY 3 POS
On
On
On
On
On
Commissioning and Diagnostics
Meaning What to Do
Check the parameter
assignment. Evaluate
the diagnosis.
Meaning
No parameter as-
Check the parameter
signment. There is a
assignment. Evaluate
diagnostic message.
the diagnosis.
REF activated
If parameters were
assigned to the mo-
dule correctly and
pulse enable has
been activated
DI activated
When a positio-
ning operation is
running
What to Do
6-17