Diagnostics By Means Of Leds Of Dp/Asi Link; Location Of Leds Of Dp/Asi Link; Meanings Of Display Leds - Siemens SIMATIC Distributed I/O System DP/ASi Link Manual

Diagnostics and Error Handling
8.1

Diagnostics by Means of LEDs of DP/ASi Link

Diagnostics
For on-site diagnostics, the operating modes of the DP/ASi link are displayed
by six LEDs. Five other LEDs indicate the address of the failed ASi slave
(refer to Fig. 8-1).
Figure 8-1
Display elements
The meanings of the different LEDs is shown in Table 8-1.
Table 8-1

Meanings of display LEDs

Name Color State
RUN Green On
Off
BF Red On
Off
ASi POWER Red On
FAIL
Off
CONFIG Yellow On
ERROR
Off
AUTPROG Green On
AV
Off
CONFIG No function
MODE
ASi SLAVE Red
FAIL
8-2
RUN BF
SINEC
L2 DP
+ PS
1 + 2 + 4 + 8

Location of LEDs of DP/ASi link

24 V power supply is in order.
24 V power supply is either not present or below permitted limit
value.
Response monitoring has terminated or parameters have not been as
signed yet to DP/ASi link for the PROFIBUS-DP and the DP/ASi link
has not been configured.
PROFIBUS-DP is in data cycle.
ASi power supply is either not present or below the permitted limit
value.
ASi power supply is in order.
Configuration error on ASi
Configuration is in order
Automatic programming is possible.
Automatic programming is not possible.
These five LEDs are used to indicate the failed ASi slave with the
lowest ASi address.
DP / ASi LINK
ASi POWER FAIL
CONFIG ERROR
AUTOPROG AV
CONFIG MODE
+ 16 = ASi SLAVE FAIL
1 2 3 4 5 6
6ES7 156-0AA01-0XA0
Function
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
ASi
3
1 +