Baumer GK473 - Manual (Page 14)

Manual_GK473_Profibus_EN.doc 14/16 Baumer IVO GmbH & Co. KG
04.05.11 Villingen-Schwenningen, Germany
• The gateway itself will indicate error if the error is due to a gateway command (code „@“).
Furthermore, the gateway will also indicate error if the error status results from any automatic
function (for example cyclic SPA scanning).
The gateway error messages comprise dummy address 20h, command „@“ (40h), sub-command „e“
(65h) as well as the error number. The message is of the following format:
Zhl Adr Cmd Scmd „S“ data
message
zz 20h 40h 65h 53h 30h 30h 30h 30h 30h 30h 30h 30h 00h 00h 00h
To maintain the figure description usual in RS485 communication, all error numbers provide an offset
of 20h.
error number- error occurred
20h no error
21h void sign in protocol
22h SPA indicates repeatedly CRC error
23h data value beyond the permitted range
24h number of commands/data beyond the permitted
range
25h timeout during waiting for SPA response, with
transparent commands only
26h unknown gateway command (@xxx)
27h...2Fh reserved
5.7. Error and warning signals (diagnostic data)
Diagnostic data are only for transmission of messages indicating any gateway error status that might
endanger Profibus operation.
Messages relating to SPA communication are processed by the standard data exchange (see error
messages data exchange). Only exception is indication of a lost SPA (error 20h) which does not react
anymore even after having tried three times.
Diagnostic data are of 11 byte in length. The first 6 byte are used for standard diagnostic data for
automatic evaluation by PLC, the remaining 5 byte for external gateway diagnosis. The last byte
contains the gateway error information.
diagnostic byte type
1 standard standard diagnostic byte 1
2 standard standard diagnostic byte 2
3 standard standard diagnostic byte 3
4 standard Master address after parameterizing (previously FFh)
5 standard Ident-number high byte
6 standard Ident-number low byte
7 external information on length of external diagnosis (05h)
8 external reserved, always 00h
9 external reserved, always 00h
10 external reserved, always 00h
11 external error number, -see chart below
error number errors occured
00h no error
01h selftest: program memory error (flash)
02h selftest: ERM error
03h selftest: ROM error (EEprom)
21h loss of SPA connected
80h..8Fh internal error