BASEstartm Classic DAS
for Allen-Bradley
Data Highwaytm Protocol
Installation and User's Guide


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2.5 Tracing Device Communications

The DAS for AB Data Highway Protocol has built into it the capability to trace PLC communications and to send this output to either a file or a user terminal. The purpose of this tracing is to allow the troubleshooting of PLC communications.

To enable tracing do the following:

The trace output is flushed to the file after every 100 lines that are traced, so trace output may lag actual device I/O.

To turn tracing off, reverse the steps used to turn tracing on.

2.6 Failures During Product Use

If an error occurs while this product is in use and you believe the error is caused by a problem with the product, take one of the following actions:

When you submit an SPR, take the following steps:

  1. Describe as accurately as possible the circumstances and state of the system when the problem occurred. Include the description and version number of the product being used. Demonstrate the problem with specific examples.
  2. Reduce the problem to as small a size as possible.
  3. Remember to include listings of any command files, INCLUDE files, or relevant data files, and so forth.
  4. Report only one problem per SPR. This will facilitate a faster response.
  5. Mail the SPR package to Compaq.


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