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FieldPoint Error Codes 32828, 32900, and 33152 Definitions

Hardware: FieldPoint>>Controllers/Network Modules>>FP-1000

Problem:
What do FieldPoint error codes 332828, 32900, and 33152 really mean?

Solution:
Here is an explanation of those error codes:

32828: The timeout period has expired at FP Read.vi
This means that the network module did not respond to the read request from the PC. This could be the result of one of the following situations:
  • The complete read request did not get sent by the PC.
  • Enough of the read request from the PC was garbled or corrupted that the network module did not recognize it as a read request.
  • The network module did get the request, but the response was garbled or not received.
Possible root causes: A noisy serial connection or an inability of the serial driver software to keep up with the serial board.


32900: Non-printable ACSII character received at FP Read.vi
This means that the network module received at least one character that was not one of the valid characters for FieldPoint communication.
Possible root cause: A noisy serial connection.


33152: Unknown error
Transmission errors are generally the cause of this error. Having a long RS-232 connection or a connection in a noisy environment can make the communications error-prone. If this is the case, you might try (if this is possible) to communicate with the same network module close to the computer using a small (less than 2 meter) cable. If the errors go away, then that narrows the problem down to the communications. The easiest way to fix this might be to use the FP-1001, which uses RS-485 for communications.

The problem might also be with noisy ground loops on the communications port. The ground of the RS-232 port on the FP-1000 is internally connected to the "C" terminal on the FP-1000. Normally this is not a problem if you are using one of our FieldPoint power supplies or another power supply that is isolated from earth ground, but it can be a problem if you connect the supply to another ground. For example, if you tie the "V" or "C" terminal of the FP-1000 to the "V" or "C" terminals of an I/O module that drives signals, which are in turn connected to ground, can cause ground loops. Try driving the "V" and "C" of the FP-1000 with a different power supply than the one that you use for the I/O module. Again, the FP-1001 (which has an isolated RS-485 port) might be a better choice for this application.

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Report Date: 05/05/1999
Last Updated: 05/07/2007
Document ID: 1L4AJNQT

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