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Troubleshooting Using LED Indicators
Section 4-2
4-2-3
PROFIBUS LED Indicators
The Unit LED indicators show the status of the communication with PROFI-
BUS. These are the two lowest LED’s. In the next table there is an overview of
all possible LED states of the two PROFIBUS LED’s. A description of the error
and a possible solution to solve the error.
Compoway-F or Host Link LED’s
FCOM
FERR
Description
Solution
Not lit
Not lit
• No Host Link or Compoway-F commu-
nication. Probably a broken wire.
• Unit has not initialized.
• Not all in the Gateway configured Host
Link or Compoway-F devices are com-
municating.
• No power connected to the Unit.
• No PROFIBUS communication. Unit
has not been initialized with a configu-
ration and cannot proceed with Compo-
way-F/Hostlink communication.
• Check all cables and connections.
• Switch the Unit off and on, make sure the network
configuration has been downloaded.
• Check Host Link or Compoway-F addresses, baud
rate settings, when baud rate settings are changed
a restart must p.erformed
• Switch power to the Unit. The hardware does not
correspond with the configured network in the soft-
ware.
Lit
Not lit
Communication with Host Link or Compo-
way-F fails, the Unit is unable to establish
communication with all devices.
-
Blinks
Not lit
Communication by auxiliary port selected. • End your ThemoTools session and switch DIP-
switch 4 to off. Switch to the old baud rate settings
if these ware changed, when baut rate settings are
changed a restart must performed.
Not lit
Lit
No communication with Host Link or Com-
poway-F network.
• Check Host Link or Compoway-F addresses, baud
rate settings, when baut rate settings are changed
a restart must performed.
• Check all cables and connections.
PROFIBUS LED
COMM
BF
Description
Solution
Not lit
Not lit
No power connected to the Unit
Switch power to the Unit
Not lit
Lit
No communication with PROFIBUS mas-
ter
• Check if the PROFIBUS master is running
• Check all PROFIBUS cables and connections, ter-
mination resistor.
Not lit
Blinks
The wrong module selected in the network
configuration
• The hardware does not correspond with the config-
ured network in the software,
• Check also the PROFIBUS addresses of the Unit
Blinks
Not lit
Host Link or Compoway-F through the
auxiliary port
• End your ThemoTools session and switch DIP-
switch 4 to off. Switch to the old baud rate settings
if these ware changed, when baut rate settings are
changed a restart must performed
Lit
Not lit
Communication in progress
-