LED
Color
OFF
ON
Flashing
Red
---
---
Device is not
configured
STA2 ETH
(System LED
"SF")
Green
---
---
Got identification
request from I/O
controller
Red
No system error
System error
(collective error)
---
S-ERR
Red
No error
Internal error
--
I/O-Bus
Green
No expansion
modules con-
nected or com-
munication error
Expansion
modules con-
nected and
operational
---
ETH1
Green
No connection at
Ethernet inter-
face
Connected to
Ethernet inter-
face
---
Yellow
---
Device is trans-
mitting telegrams
Device is trans-
mitting telegrams
ETH2
Green
No connection at
Ethernet inter-
face
Connected to
Ethernet inter-
face
---
Yellow
---
Device is trans-
mitting telegrams
Device is trans-
mitting telegrams
Table 176: States of the 29 process LEDs
LED
Color
OFF
ON
Flashing
DC0 to DC7
Yellow
Input/Output is
OFF
Input/Output is
ON
--
DI8 to DI15
Yellow
Input is OFF
Input is ON (the
input voltage is
even displayed if
the supply
voltage is OFF)
--
DO8 to DO15
Yellow
Output is OFF
Output is ON
--
UP
Green
Process supply
voltage missing
Process supply
voltage OK and
initialization fin-
ished
--
UP3
Green
Process supply
voltage missing
Process supply
voltage OK
--
CH-ERR1 to CH-
ERR3
Red
No error or
process supply
voltage missing
Internal error
Error on one
channel of the
corresponding
group
1.7.5.3.9 Technical data
The system data of AC500 and S500
Chapter 2.6.1 “System data AC500” on page 971
are
applicable to the standard version.
The system data of AC500-XC
Chapter 2.7.1 “System data AC500-XC” on page 1023
applicable to the XC version.
Device specifications
Communication interface modules (S500) > PROFINET
2022/01/31
3ADR010278, 3, en_US
854