59
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 an overview of all pos-
sible LED states of the two PROFIBUS LED indicators, a description of the
error and a possible solutions to solve the error are presented.
RS-422A / RS-485 LED’s
FCOM
FERR
Description
Solution
Not lit
Not lit
• No communication over RS-422A /
RS-485. Probably a broken wire.
• Unit has not initialized.
• Not all devices configured in the PRT1-
SCU11 are communicating.
• No power connected to the Unit.
• No PROFIBUS communication. Unit
has not been initialized with a configu-
ration and cannot proceed with RS-
422A/ RS-485 communication.
• Check all cables and connections.
• Switch the Unit off and on, make sure the network
configuration has been downloaded.
• Check Compoway-F, Host Link, K-Format or
Memobus addresses, baud rate settings. If baud
rate settings are changed a restart must performed
• Switch power to the Unit. The hardware does not
correspond with the configured network in the soft-
ware.
Lit
Not lit
Communication with RS-422A / RS-485
devices fails, the Unit is unable to estab-
lish 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 RS-422A / RS-
485 network.
• Check Compoway-F, Host Link, K-Format or
Memobus addresses, baud rate settings, when
baut rate settings are changed a restart must per-
formed.
• 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
Compoway-F, K-Format or Memobus
communication through the auxiliary port
• End your ThemoTools / CX-Drive 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
-
Summary of Contents for PROFIBUS DP GATEWAY
Page 1: ...OPERATION MANUAL PROFIBUS DP Gateway to Host Link Compoway F PRT1 SCU11 Cat No W01E EN 02 ...
Page 2: ...PRT1 SCU11 PROFIBUS DP Gateway Operation Manual Revised September 19 2005 ...
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