Overview; Troubleshooting Using Led Indicators; Unit Led Indicators; Rs-422A / Rs-485 Communication Led Indicators - Omron PROFIBUS DP GATEWAY Operation Manual

Overview

4-1

Overview

4-2

Troubleshooting Using LED Indicators

4-2-1

Unit Led Indicators

RUN ERR
Lit Not lit Normal operation
Not lit Not lit • Initialization fails.
• No power connected to the Unit.
Not lit Blinks Initialization error during startup.
Not lit Lit Fatal error.
4-2-2

RS-422A / RS-485 Communication LED Indicators

58
The PRT1-SCU11 has several LED indicators, allowing the user to trouble-
shoot and check the operation.
These LED indicators are:
• RUN, indicates normal operation.
• ERR, fatal error.
• FCOM, RS-422A / RS-485 communication.
• FERR, communication error on RS-422A / RS-485.
• COMM, communication with PROFIBUS Master.
• BF, all communication with the PROFIBUS Master has lost or configura-
tion/parameter error occurs.
The LED's can be categorized into 3 categories.
1. Unit LED indicators.
2. RS-422A / RS-485 Communication LED indicators.
3. PROFIBUS communication LED indicators.
The Unit LED's indicate the status of the PRT1-SCU11. These are the two
highest LED's. In the next table there is an overview of all possible LED states
of the two Unit LED's. A description of the error and a possible solution to
solve the error.
Unit LED's
Description
The Unit LED indicators show the status of the communication with Compo-
way-F, Host Link, K-Format or Memobus over RS-422A / RS-485. These are
the two LED's in the middle. In the next table an overview of all possible LED
states of the two LED indicators, a description of the error and a possible
solutions to solve the error are presented.
Solution
-
• Restart the module by switching the power off and
on, if the problem remains replace the Unit.
• Switch power to the Unit.
Restart the module by switching the power off and on,
if the problem remains replace the Unit.
Restart the module by switching the power off and on,
if the problem remains replace the Unit.
Section 4-1