Commissioning and Diagnostics
5-13
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
5.3
Diagnostics using LEDs
All the basic and some of the ET 200X expansion modules have LEDs for
displaying the status and errors.
5.3.1
LEDs on BM 141 and BM 142 basic modules
Table 5-7
Status and error display by means of LEDs on the BM 141 and BM 142 basic modules
SF
(system fault):
red
BF
(bus fault):
red
ON
(supply voltage):
green
24 VDC (load supply voltage):
green
LEDs
Meaning
Action
SF
BF
ON
Off
Off
Off
There is either no supply voltage to
the electronics/sensors on the DP
slave or it is too low.
Turn on the supply voltage to the
DP slave.
A hardware fault has occurred.
Replace the basic module.
*
*
On
Supply voltage is applied to the DP
slave.
–
*
On
On
The DP slave is starting up.
–
The connection to the DP master
has failed.
The DP slave does not detect a
baud rate.
Check the PROFIBUS-DP
connection.
Check the DP master.
Bus interrupt
The DP master is not operating
Check all the cables in your
PROFIBUS-DP network.
Check whether the cable
connectors for PROFIBUS-DP are
firmly attached to the basic module.
On
Off
On
Diagnostic message has been
issued.
The PROFIBUS address set on the
DP slave is not allowed.
A DP slave hardware fault has
occurred.
Evaluate the diagnosis.
Change the PROFIBUS address
set on the basic module.
Check whether the modules are
securely connected together.
On
Flash. On
The configuration data sent by the
DP master to the DP slave does not
agree with the configuration of the
DP slave.
Check the configuration of the DP
slave (input/output, PROFIBUS
address).
Summary of Contents for SIMATIC ET 200X
Page 8: ...Preface viii ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 20: ...Contents xx ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 40: ...Product Overview 1 20 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 58: ...Configuration Options 2 18 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 80: ...Installation 3 22 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 124: ...Configuration Options 2 18 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 328: ...Order Numbers A 10 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 348: ...Dimesioned Drawings and Pinouts C 18 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 362: ...Index Index 8 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...