Prosoft-technology MVI46-DFCM Manual de usuario descargar pdf (Pagina 78)

MVI46-DFCM ♦ SLC Platform Reference

DF1 Communication Module

Page 78 of 103 ProSoft Technology, Inc.

October 20, 2008

5.5 Error Codes

The module error codes are listed in this section. Error codes returned from the

command list process are stored in the command list error memory region. A

word is allocated for each command in the memory area. The error codes are

formatted in the word as follows: The least-significant byte of the word contains

the extended status code and the most-significant byte contains the status code.

Use the error codes returned for each command in the list to determine the

success or failure of the command. If the command fails, use the error code to

determine the cause of failure.

Note: The Module Specific error codes (not DF1 compliant) are returned from within the module

and never returned from an attached DF1 slave device. These are error codes that are part of the

DF1 protocol or are extended codes unique to this module. The standard DF1 error codes can be

found in the DF1 Protocol and Command Set Reference Manual (Publication 1770-6.5.16) from

Rockwell Automation. The most common errors for the DF1 protocol are shown in the following

tables:

5.5.1 Local STS Error Codes

Code (Int) Code (Hex) Description

0 0x0000 Success, no error

256 0x0100 DST node is out of buffer space

512 0x0200 Cannot guarantee delivery (Link Layer)

768 0x0300 Duplicate token holder detected

1024 0x0400 Local port is disconnected

1280 0x0500 Application layer timed out waiting for response

1536 0x0600 Duplicate node detected

1792 0x0700 Station is offline

2048 0x0800 Hardware fault

5.5.2 Remote STS Error Codes

Code (Int) Code (Hex) Description

0 0x0000 Success, no error

4096 0x1000 Illegal command or format

8192 0x2000 Host has a problem and will not communicate

12288 0x3000 Remote node host is missing, disconnected or shut down

16384 0x4000 Host could not complete function due to hardware fault

20480 0x5000 Addressing problem or memory protect rungs

24576 0x6000 Function not allowed due to command protection selection

26872 0x7000 Processor is in Program mode

-32768 0x8000 Compatibility mode file missing or communication zone problem

-28672 0x9000 Remote node cannot buffer command

-24576 0xA000 Wait ACK (1775-KA buffer full)

-20480 0xB000 Remote node problem due to download

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