6. Corrective action
6.1. Troubleshooting
In case of problems with Profinet communication, the actuator controls provide
important information on trouble-shooting via the display (menu Diagnostic M0022).
The indication and diagnostic LEDs on the Profinet board can also be used as support.
Assumption: Port 1/channel 1 is used as uplink in direction of the I/O controller (no
ring topology)
Table 38: Troubleshooting table
Causes and remedies
No faultYesCan the actuator be con-
trolled via Profinet ?
1
→ Continue with 2
No
→ Continue with 3
Select menu:
Diagnostic M0022
2
→ Continue with 4
Select menu:
Profinet M1807
3
Valid telegrams to the own address
Connection to I/O controller active and valid data received by I/O
controller
Channel 1 DataEx
or LED [DX] on Profinet
board is not illuminated
Select menu:
Communication status
M1817
4
If yes → Continue with 5
If no → Continue with Channel 1 activity
Activity of communication interface on channel/port 1
Valid telegrams, however not necessarily sent to the own address
Channel 1 activity
(uplink port)
or LED (LINK/ACT1) is
blinking on Profinet connec-
tion board
If yes → Continue with Module status
If no → Continue with Network status
Activity of communication interface on channel/port 2
Valid telegrams, however not necessarily sent to the own address
Channel 2 activity
or LED (LINK/ACT2) is
blinking on Profinet connec-
tion board
If yes → Network connection to subsequent device available
If no → Continue with Network status
If yes → Network connection in direction of I/O controller available,
no communication
→ Continue with Module status
If no → No network connection available, check cables and con-
nection
Network status
Link port 1
or LED (LINK/ACT1) on
Profinet board is illumin-
ated in green
If yes → Network connection to subsequent device available, no
communication
If no → No network connection available, check cables and con-
nection
Network status
Link port 2
or LED (LINK/ACT2) on
Profinet board is illumin-
ated in green
Wait Process
Devices waiting for I/O connection to I/O controller
I/O controller configuration faulty
→ Correct parameter data within I/O controller
→ Check addressing
Module status
Idle I/O
Connected I/O controller in STOP mode or I/O controller has not
yet sent valid data
→ Check I/O controller configuration
Process Active I/O
→ Continue with 5.
Error
Configuration data is inconsistent or starting parameters faulty
→ Check I/O controller configuration
Exception
Serious error or unexpected behaviour of Profinet module or
Profinet application detected
40
Actuator controls
Corrective action AC 01.2/ACExC 01.2 Profinet
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